
<PAGE>
 
                                                                    Exhibit 99.1
 
                          SECOND AMENDED AND RESTATED
                       AGREEMENT OF LIMITED PARTNERSHIP

                                      OF

                     BOSTON PROPERTIES LIMITED PARTNERSHIP



                                                                   June 29, 1998
<PAGE>
 
                               TABLE OF CONTENTS

<TABLE> 
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ARTICLE 1  DEFINED TERMS..................................................................     3
                                                                                              
ARTICLE 2  ORGANIZATIONAL MATTERS.........................................................    16
    Section 2.1    Formation..............................................................    16          
    Section 2.2    Name...................................................................    16          
    Section 2.3    Registered Office and Agent; Principal Office..........................    16          
    Section 2.4    Power of Attorney......................................................    17          
    Section 2.5    Term...................................................................    18          
                                                                                              
ARTICLE 3  PURPOSE........................................................................    18
    Section 3.1    Purpose and Business...................................................    18          
    Section 3.2    Powers.................................................................    19          
                                                                                              
ARTICLE 4  CAPITAL CONTRIBUTIONS..........................................................    19
    Section 4.1    Capital Contributions of the Partners..................................    19      
    Section 4.2    Issuances of Additional Partnership Interests..........................    21      
    Section 4.3    Contribution of Proceeds of Issuance of REIT Shares....................    22      
                                                                                              
ARTICLE 5  DISTRIBUTIONS..................................................................    22
    Section 5.1    Requirement and Characterization of Distributions......................    22      
    Section 5.2    Amounts Withheld.......................................................    24      
    Section 5.3    Distributions Upon Liquidation.........................................    24      
    Section 5.4    Revisions to Reflect Issuance of Additional Partnership Interests......    24      
                                                                                              
ARTICLE 6  ALLOCATIONS....................................................................    24
    Section 6.1    Allocations For Capital Account Purposes...............................    24      
                                                                                              
ARTICLE 7  MANAGEMENT AND OPERATIONS OF BUSINESS..........................................    27
    Section 7.1    Management.............................................................    27      
    Section 7.2    Certificate of Limited Partnership.....................................    31      
    Section 7.3    Restrictions on General Partner Authority..............................    31      
    Section 7.4    Reimbursement of the General Partner and the Company; DRIP's and                  
                   Repurchase Programs....................................................    31      
    Section 7.5    Outside Activities of the General Partner..............................    33      
    Section 7.6    Contracts with Affiliates..............................................    33      
    Section 7.7    Indemnification........................................................    34      
    Section 7.8    Liability of the General Partner.......................................    36      
    Section 7.9    Other Matters Concerning the General Partner...........................    36      
    Section 7.10   Title to Partnership Assets............................................    37      
</TABLE> 

                                      (i)
<PAGE>
 
<TABLE> 
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     Section 7.11   Reliance by Third Parties.................................................   37
                                                                                                 
ARTICLE 8   RIGHTS AND OBLIGATIONS OF LIMITED PARTNERS........................................   38
     Section 8.1    Limitation of Liability...................................................   38
     Section 8.2    Management of Business....................................................   38
     Section 8.3    Outside Activities of Limited Partners....................................   39
     Section 8.4    Return of Capital.........................................................   39
     Section 8.5    Rights of Limited Partners Relating to the Partnership....................   39
     Section 8.6    Redemption Right..........................................................   40
     Section 8.7    Consent and Guarantee Rights of Certain Limited Partners..................   42
                                                                                                 
ARTICLE 9   BOOKS, RECORDS, ACCOUNTING AND REPORTS............................................   43
     Section 9.1    Records and Accounting....................................................   43
     Section 9.2    Fiscal Year...............................................................   43
     Section 9.3    Reports...................................................................   43
                                                                                                 
ARTICLE 10  TAX MATTERS.......................................................................   44
     Section 10.1   Preparation of Tax Returns................................................   44
     Section 10.2   Tax Elections.............................................................   44
     Section 10.3   Tax Matters Partner.......................................................   44
     Section 10.4   Organizational Expenses...................................................   46
     Section 10.5   Withholding...............................................................   46
                                                                                                 
ARTICLE 11  TRANSFERS AND WITHDRAWALS.........................................................   47
     Section 11.1   Transfer..................................................................   47
     Section 11.2   Transfer of the Company's General Partner Interest and Limited Partner       
                    Interest; Extraordinary Transactions......................................   48
     Section 11.3   Limited Partners' Rights to Transfer......................................   50
     Section 11.4   Substituted Limited Partners..............................................   51
     Section 11.5   Assignees.................................................................   52
     Section 11.6   General Provisions........................................................   52
                                                                                                 
ARTICLE 12  ADMISSION OF PARTNERS.............................................................   53
     Section 12.1   Admission of Successor General Partner....................................   53
     Section 12.2   Admission of Additional Limited Partners..................................   53
     Section 12.3   Amendment of Agreement and Certificate of Limited Partnership.............   54
</TABLE> 

                                     (ii)
<PAGE>
 
<TABLE> 
<S>                                                                                                <C> 
ARTICLE 13   DISSOLUTION, LIQUIDATION AND TERMINATION...........................................   54
    Section 13.1    Dissolution.................................................................   54
    Section 13.2    Winding Up..................................................................   55
    Section 13.3    Compliance with Timing Requirements of Regulations..........................   57
    Section 13.4    Deemed Termination..........................................................   58
    Section 13.5    Rights of Limited Partners..................................................   59
    Section 13.6    Notice of Dissolution.......................................................   59
    Section 13.7    Termination of Partnership and Cancellation of Certificate of Limited          
                    Partnership.................................................................   59
    Section 13.8    Reasonable Time for Winding-Up..............................................   59
    Section 13.9    Waiver of Partition.........................................................   60
                                                                                                   
ARTICLE 14   AMENDMENT OF PARTNERSHIP AGREEMENT; MEETINGS.......................................   60
    Section 14.1    Amendments..................................................................   60
    Section 14.2    Meetings of the Partners....................................................   61
                                                                                                   
ARTICLE 15   GENERAL PROVISIONS.................................................................   62
    Section 15.1    Addresses and Notice........................................................   63
    Section 15.2    Titles and Captions.........................................................   63
    Section 15.3    Pronouns and Plurals........................................................   63
    Section 15.4    Further Action..............................................................   63
    Section 15.5    Binding Effect..............................................................   63
    Section 15.6    Creditors...................................................................   63
    Section 15.7    Waiver......................................................................   64
    Section 15.8    Counterparts................................................................   64
    Section 15.9    Applicable Law..............................................................   64
    Section 15.10   Invalidity of Provisions....................................................   64
    Section 15.11   Entire Agreement............................................................   65
</TABLE> 

EXHIBITS

Exhibit A  -    Partners Contributions and Partnership Interests       
Exhibit B  -    Capital Account Maintenance                            
Exhibit C  -    Special Allocation Rules                               
Exhibit D  -    Notice of Redemption                                   
Exhibit E  -    Designated Properties                                  
Exhibit F  -    Recourse Debt Level Schedule                            

                                     (iii)
<PAGE>
 
                          SECOND AMENDED AND RESTATED
                       AGREEMENT OF LIMITED PARTNERSHIP
                                      OF
                     BOSTON PROPERTIES LIMITED PARTNERSHIP


     THIS SECOND AMENDED AND RESTATED AGREEMENT OF LIMITED PARTNERSHIP OF BOSTON
PROPERTIES LIMITED PARTNERSHIP (this "Agreement"), dated as of June 29, 1998, is
entered into by and among Boston Properties, Inc., a Delaware corporation (the
"Company"), and the Persons (as defined below) whose names are set forth on
Exhibit A attached hereto (as it may be amended from time to time).

                   Original Agreement and First Restatement

     WHEREAS, this Limited Partnership was formed on April 8, 1997 and an
original agreement of limited partnership was entered into between the Company,
as general partner, and Edward H. Linde, as limited partner;

     WHEREAS, prior to the date of the First Restatement (as defined below)
certain partnerships merged into the Partnership and the partners of such
partnerships ("Merging Partners") were issued or became entitled to receive, as
a result of such mergers, Partnership Interests;

     WHEREAS, immediately prior to or contemporaneously with the execution on
June 23, 1997, of the First Amended and Restated Agreement of Limited
Partnership (the "First Restatement"), certain partnerships (the "Contributing
Partnerships") conveyed to the Partnership all right, title and interest of such
partnerships to the real property and other assets owned by them and received in
exchange therefor Partnership Interests;

     WHEREAS, the Company effected an initial public offering of its common
stock, acquired and caused the Partnership to acquire direct and indirect
interests in certain office properties and other assets, caused the Partnership
to enter into certain financing arrangements and contributed the remaining net
proceeds from the initial public offering and the other assets of the Company to
the Partnership;

     WHEREAS, the Merging Partners and the Contributing Partnerships and persons
with direct and indirect interests in them in certain instances engaged in a
series of distributions whereby certain persons with direct or indirect
interests in the Merging Partners and the Contributing Partnerships (the "New
Partners") were assigned and conveyed Partnership Interests, and the Merging
Partners and the Contributing Partnerships directed that the Partnership issue
directly to the New Partners the Partnership Interests to which such persons
thus became entitled;

     WHEREAS, in connection with the First Restatement, the Partnership issued
Partnership Interests to the Company and other persons, and additional
Partnership Interests to 
<PAGE>
 
certain of the Merging Partners and the New Partners, in accordance with the
foregoing transactions;

     WHEREAS, upon the completion of the foregoing transactions, in connection
with the First Restatement, the Partnership returned the original capital
contributions made by the Company and Mr. Linde and any ongoing interest in the
Partnership of the Company and Mr. Linde has thereafter been based on their
respective contributions as Merging Partners or as contemplated below; and

     WHEREAS, as evidenced by their respective execution of the First
Restatement, the Company and Mr. Linde and the other persons who thereby became
Limited Partners thereby consented to the amendment and restatement of the
original agreement of limited partnership.

                             Subsequent Amendments

     WHEREAS, the General Partner has since the date of the First Restatement,
pursuant to Section 14.1.B, effected amendments to this Agreement (the
"Subsequent Amendments") for the purpose of reflecting the admission of
Additional Limited Partners, clarifying Sections 8.6.B. and 11.1.A., and
amending Section 5.1

                              Second Restatement

     WHEREAS, the General Partner desires to denominate all Partnership Units
outstanding prior to the execution hereof as "Common Units" and further desires
to create a new series of Partnership Units to be denominated Series One
Preferred Units, which shall have certain rights, preferences and limitations
associated therewith; and

     WHEREAS, the General Partner has determined that such amendment is not
adverse to the Limited Partners and is otherwise permitted without the consent
of the Limited Partners pursuant to Section 14.1.B(3) of this Agreement.

     NOW, THEREFORE, the General Partner hereby amends and restates this
Agreement as set forth in full below pursuant to the authority granted to the
General Partner under Sections 14.1.B(2), (3) and (4) of this Agreement and
adopts this Second Amended and Restated Agreement in full substitution of the
First Restatement and the Subsequent Amendments.

                                   ARTICLE 1
                                 DEFINED TERMS

     The following definitions shall be for all purposes, unless otherwise
clearly indicated to the contrary, applied to the terms used in this Agreement.

                                       2
<PAGE>
 
     "Act" means the Delaware Revised Uniform Limited Partnership Act, as it may
be amended from time to time, and any successor to such statute.

     "Additional Limited Partner" means a Person admitted to the Partnership as
a Limited Partner pursuant to Sections 4.2 and 12.2 hereof and who is shown as
such on the books and records of the Partnership.

     "Adjusted Capital Account" means the Capital Account maintained for each
Partner as of the end of each Partnership taxable year (i) increased by any
amounts which such Partner is obligated to restore pursuant to any provision of
this Agreement or is deemed to be obligated to restore pursuant to the
penultimate sentences of Regulations Sections 1.704-2(g)(1) and 1.704-2(i)(5);
and (ii) decreased by the items described in Regulations Sections 1.704-
1(b)(2)(ii)(d)(4), 1.704-1(b)(2)(ii)(d)(5), and 1.704-1(b)(2)(ii)(d)(6).  The
foregoing definition of Adjusted Capital Account is intended to comply with the
provisions of Regulations Section 1.704-1(b)(2)(ii)(d) and shall be interpreted
consistently therewith.

     "Adjusted Capital Account Deficit" means, with respect to any Partner, the
deficit balance, if any, in such Partner's Adjusted Capital Account as of the
end of the relevant Partnership taxable year.

     "Adjusted Property" means any property, the Carrying Value of which has
been adjusted pursuant to Exhibit B hereof.  Once an Adjusted Property is deemed
distributed by, and recontributed to, the Partnership for federal income tax
purposes upon a termination thereof pursuant to Section 708 of the Code, such
property shall thereafter constitute a Contributed Property until the Carrying
Value of such property is further adjusted pursuant to Exhibit B hereof.

     "Affiliate" means, with respect to any Person, any Person directly or
indirectly controlling, controlled by or under common control with such Person.
For purposes of this definition, "control," when used with respect to any
Person, means the power to direct the management and policies of such Person,
directly or indirectly, whether through the ownership of voting securities, by
contract or otherwise, and the terms "controlling" and "controlled" have
meanings correlative to the foregoing.  No officer, director or stockholder of
the General Partner shall be considered an Affiliate of the General Partner
solely as a result of serving in such capacity or being a stockholder of the
General Partner.

     "Agreed Value" means (i) in the case of any Contributed Property as of the
time of its contribution to the Partnership, the 704(c) Value of such property,
reduced by any liabilities either assumed by the Partnership upon such
contribution or to which such property is subject when contributed, and (ii) in
the case of any property distributed to a Partner by the Partnership, the
Partnership's Carrying Value of such property at the time such property is
distributed, reduced by any indebtedness either assumed by such Partner upon
such distribution or to which such property is subject at the time of
distribution as determined under Section 752 

                                       3
<PAGE>
 
of the Code and the Regulations thereunder. The aggregate Agreed Value of the
Contributed Property contributed or deemed contributed by each Partner as of the
date hereof is as set forth in Exhibit A.

     "Agreement" means this Amended and Restated Agreement of Limited
Partnership, as it may be amended, supplemented or restated from time to time,
including by way of adoption of a Certificate of Designations.

     "Assignee" means a Person to whom one or more Partnership Units have been
transferred in a manner permitted under this Agreement, but who has not become a
Substituted Limited Partner, and who has the rights set forth in Section 11.5.

     "Available Cash" means, with respect to any period for which such
calculation is being made, (i) the sum of:

          (a) the Partnership's Net Income or Net Loss (as the case may be) for
     such period (without regard to adjustments resulting from allocations
     described in Sections 1.A through 1.E of Exhibit C);

          (b) Depreciation and all other noncash charges deducted in determining
     Net Income or Net Loss for such period;

          (c) the amount of any reduction in the reserves of the Partnership
     referred to in clause (ii)(f) below (including, without limitation,
     reductions resulting because the General Partner determines such amounts
     are no longer necessary);

          (d) the excess of proceeds from the sale, exchange, disposition, or
     refinancing of Partnership property for such period over the gain
     recognized from such sale, exchange, disposition, or refinancing during
     such period (excluding Terminating Capital Transactions); and

          (e) all other cash received by the Partnership for such period that
     was not included in determining Net Income or Net Loss for such period;

     (ii) less the sum of:

          (a) all principal debt payments made by the Partnership during such
     period;

          (b) capital expenditures made by the Partnership during such period;

          (c) investments made by the Partnership during such period in any
     entity (including loans made thereto) to the extent that such investments
     are not otherwise described in clause (ii)(a) or (ii)(b);

                                       4
<PAGE>
 
          (d) all other expenditures and payments not deducted in determining
     Net Income or Net Loss for such period;

          (e) any amount included in determining Net Income or Net Loss for such
     period that was not received or disbursed by the Partnership during such
     period;

          (f) the amount of any increase in reserves during such period which
     the General Partner determines to be necessary or appropriate in its sole
     and absolute discretion; and

          (g) the amount of any working capital accounts and other cash or
     similar balances which the General Partner determines to be necessary or
     appropriate, in its sole and absolute discretion.

     Notwithstanding the foregoing, Available Cash shall not include any cash
received or reductions in reserves, or take into account any disbursements made
or reserves established, after commencement of the dissolution and liquidation
of the Partnership.

     "Book-Tax Disparities" means, with respect to any item of Contributed
Property or Adjusted Property, as of the date of any determination, the
difference between the Carrying Value of such Contributed Property or Adjusted
Property and the adjusted basis thereof for federal income tax purposes as of
such date.  A Partner's share of the Partnership's Book-Tax Disparities in all
of its Contributed Property and Adjusted Property will be reflected by the
difference between such Partner's Capital Account balance as maintained pursuant
to Exhibit B and the hypothetical balance of such Partner's Capital Account
computed as if it had been maintained strictly in accordance with federal income
tax accounting principles.

     "Business Day" means any day except a Saturday, Sunday or other day on
which commercial banks in New York, New York or Boston, Massachusetts are
authorized or required by law to close.

     "Capital Account" means the Capital Account maintained for a Partner
pursuant to Exhibit B hereof.

     "Capital Contribution" means, with respect to any Partner, any cash, cash
equivalents or the Agreed Value of Contributed Property which such Partner
contributes or is deemed to contribute to the Partnership pursuant to Section
4.1, 4.2, or 4.3 hereof.

     "Carrying Value" means (i) with respect to a Contributed Property or
Adjusted Property, the 704(c) Value of such property, reduced (but not below
zero) by all Depreciation with respect to such Contributed Property or Adjusted
Property, as the case may be, charged to the Partners' Capital Accounts
following the contribution of or adjustment with respect to such Property; and
(ii) with respect to any other Partnership property, the adjusted basis of 

                                       5
<PAGE>
 
such property for federal income tax purposes, all as of the time of
determination. The Carrying Value of any property shall be adjusted from time to
time in accordance with Exhibit B hereof, and to reflect changes, additions or
other adjustments to the Carrying Value for dispositions and acquisitions of
Partnership properties, as deemed appropriate by the General Partner.

     "Cash Amount" means an amount of cash per Common Unit equal to the Value on
the Valuation Date of the REIT Shares Amount.

     "Certificate of Designations" means an amendment to this Agreement that
sets forth the designations, rights, powers, duties and preferences of holders
of any Partnership Interests issued pursuant to Section 4.2.A., which amendment
is in the form of a certificate signed by the General Partner and appended to
this agreement.  A Certificate of Designations is not the exclusive manner in
which such an amendment may be effected.  The General partner may adopt a
Certificate of Designations without the consent of the Limited Partners to the
extent permitted pursuant to Section 14.1.B hereof.

     "Certificate of Incorporation" means the Certificate of Incorporation or
other organizational document governing the General Partner, as amended or
restated from time to time.

     "Certificate of Limited Partnership" means the Certificate of Limited
Partnership relating to the Partnership filed in the office of the Delaware
Secretary of State, as amended from time to time in accordance with the terms
hereof and the Act.

     "Code" means the Internal Revenue Code of 1986, as amended and in effect
from time to time, as interpreted by the applicable regulations thereunder.  Any
reference herein to a specific section or sections of the Code shall be deemed
to include a reference to any corresponding provision of future law.

     "Common Unit" means a Partnership Unit which is designated as a Common Unit
and which has the rights, preferences and other privileges designated herein in
respect of Common Unitholders.  The allocation of Common Units among the
Partners shall be set forth on Exhibit A, as may be amended from time to time.

     "Common Unitholder" means a Partner that holds Common Units.

     "Consent" means the consent or approval of a proposed action by a Partner
given in accordance with Section 14.2 hereof.

     "Consenting Partner" or "Consenting Partners" means Mortimer B. Zuckerman
and Edward H. Linde, individually or collectively, as the case may be.

                                       6
<PAGE>
 
     "Contributed Property" means each property or other asset, in such form as
may be permitted by the Act (but excluding cash), contributed or deemed
contributed to the Partnership (including deemed contributions to the
Partnership on termination and reconstitution thereof pursuant to Section 708 of
the Code).  Once the Carrying Value of a Contributed Property is adjusted
pursuant to Exhibit B hereof, such property shall no longer constitute a
Contributed Property for purposes of Exhibit B hereof, but shall be deemed an
Adjusted Property for such purposes.

     "Conversion Factor" means 1.0, provided that in the event that the Company
(i) declares or pays a dividend on its outstanding REIT Shares in REIT Shares or
makes a distribution to all holders of its outstanding REIT Shares in REIT
Shares; (ii) subdivides its outstanding REIT Shares; or (iii) combines its
outstanding REIT Shares into a smaller number of REIT Shares, the Conversion
Factor shall be adjusted by multiplying the Conversion Factor by a fraction, the
numerator of which shall be the number of REIT Shares issued and outstanding on
the record date for such dividend, distribution, subdivision or combination
(assuming for such purpose that such dividend, distribution, subdivision or
combination has occurred as of such time), and the denominator of which shall be
the actual number of REIT Shares (determined without the above assumption)
issued and outstanding on the record date for such dividend, distribution,
subdivision or combination.  Any adjustment to the Conversion Factor shall
become effective immediately after the effective date of such event retroactive
to the record date, if any, for such event (provided, however, if a Notice of
Redemption is given prior to such a record date and the Specified Redemption
Date is after such a record date, then the adjustment to the Conversion Factor
shall, with respect to such redeeming Partner, be retroactive to the date of
such Notice of Redemption).  It is intended that adjustments to the Conversion
Factor are to be made in order to avoid unintended dilution or anti-dilution as
a result of transactions in which REIT Shares are issued, redeemed or exchanged
without a corresponding issuance, redemption or exchange of Common Units or of
Preferred Units that are convertible into Common Units.  If, prior to a
Specified Redemption Date, Rights (other than Rights issued pursuant to an
employee benefit plan or other compensation arrangement) were issued and have
expired, and such Rights were issued with an exercise price that, together with
the purchase price for such Rights, was below fair market value in relation to
the security or other property to be acquired upon the exercise of such Rights,
and such Rights were issued to all holders of outstanding REIT shares or the
General Partner cannot in good faith represent that the issuance of such Rights
benefitted the Limited Partners, then the Conversion Factor applicable upon a
Notice of Redemption shall be equitably adjusted in a manner consistent with
antidilution provisions in warrants and other instruments in the case of such a
below market issuance or exercise price.  A similar equitable adjustment to
protect the value of Common Units shall be made in all events if any Rights
issued under a "Shareholder Rights Plan" became exercisable and expired prior to
a Specified Redemption Date.

     "Depreciation" means, for each taxable year, an amount equal to the federal
income tax depreciation, amortization, or other cost recovery deduction
allowable with respect to an asset for such year, except that if the Carrying
Value of an asset differs from its adjusted basis for 

                                       7
<PAGE>
 
federal income tax purposes at the beginning of such year or other period,
Depreciation shall be an amount which bears the same ratio to such beginning
Carrying Value as the federal income tax depreciation, amortization, or other
cost recovery deduction for such year bears to such beginning adjusted tax
basis; provided, however, that if the federal income tax depreciation,
amortization, or other cost recovery deduction for such year is zero,
Depreciation shall be determined with reference to such beginning Carrying Value
using any reasonable method selected by the General Partner.

     "Designated Property" or "Designated Properties" has the meanings set forth
in Section 8.7 hereof.

     "Effective Date" means June 23, 1997, the date of closing of the initial
public offering of REIT Shares by the Company.

     "Extraordinary Transaction" shall mean, with respect to the Company, the
occurrence of one or more of the following events: (i) a merger (including a
triangular merger), consolidation or other combination with or into another
Person; (ii) the direct or indirect sale, lease, exchange or other transfer of
all or substantially all of its assets in one transaction or a series of
transactions; (iii) any reclassification, recapitalization or change of its
outstanding equity interests (other than a change in par value, or from par
value to no par value, or as a result of a split, dividend or similar
subdivision); (iv) any issuance of equity securities of the Company in exchange
for assets (other than an issuance of securities for cash or an issuance of
securities pursuant to an employee benefit plan); (v) any Change of Control (as
defined in the Company's Certificate of Incorporation) or (vi) the adoption of
any plan of liquidation or dissolution of the Company (whether or not in
compliance with the provisions of this Agreement).

     "General Partner" means the Company, in its capacity as the general partner
of the Partnership, or its successors as general partner of the Partnership.

     "General Partner Interest" means a Partnership Interest held by the General
Partner, in its capacity as general partner.  A General Partner Interest may be
expressed as a number of Partnership Units.

     "IRS" means the Internal Revenue Service, which administers the internal
revenue laws of the United States.

     "Incapacity" or "Incapacitated" means, (i) as to any individual Partner,
death, total physical disability or entry by a court of competent jurisdiction
adjudicating him incompetent to manage his or her Person or estate; (ii) as to
any corporation which is a Partner, the filing of a certificate of dissolution,
or its equivalent, for the corporation or the revocation of its charter; (iii)
as to any partnership which is a Partner, the dissolution and commencement of
winding up of the partnership; (iv) as to any estate which is a Partner, the
distribution by the 

                                       8
<PAGE>
 
fiduciary of the estate's entire interest in the Partnership; (v) as to any
trustee of a trust which is a Partner, the termination of the trust (but not the
substitution of a new trustee); or (vi) as to any Partner, the bankruptcy of
such Partner. For purposes of this definition, bankruptcy of a Partner shall be
deemed to have occurred when (a) the Partner commences a voluntary proceeding
seeking liquidation, reorganization or other relief under any bankruptcy,
insolvency or other similar law now or hereafter in effect; (b) the Partner is
adjudged as bankrupt or insolvent, or a final and nonappealable order for relief
under any bankruptcy, insolvency or similar law now or hereafter in effect has
been entered against the Partner; (c) the Partner executes and delivers a
general assignment for the benefit of the Partner's creditors; (d) the Partner
files an answer or other pleading admitting or failing to contest the material
allegations of a petition filed against the Partner in any proceeding of the
nature described in clause (b) above; (e) the Partner seeks, consents to or
acquiesces in the appointment of a trustee, receiver or liquidator for the
Partner or for all or any substantial part of the Partner's properties; (f) any
proceeding seeking liquidation, reorganization or other relief of or against
such Partner under any bankruptcy, insolvency or other similar law now or
hereafter in effect has not been dismissed within one hundred twenty (120) days
after the commencement thereof; (g) the appointment without the Partner's
consent or acquiescence of a trustee, receiver or liquidator has not been
vacated or stayed within ninety (90) days of such appointment; or (h) an
appointment referred to in clause (g) which has been stayed is not vacated
within ninety (90) days after the expiration of any such stay.

     "Indemnitee" means (i) any Person made a party to a proceeding by reason of
(A) his status as the General Partner, or as a director or officer of the
Partnership or the General Partner, or (B) his or its liabilities, pursuant to a
loan guarantee or otherwise, for any indebtedness of the Partnership or any
Subsidiary of the Partnership (including, without limitation, any indebtedness
which the Partnership or any Subsidiary of the Partnership has assumed or taken
assets subject to); and (ii) such other Persons (including Affiliates of the
General Partner or the Partnership) as the General Partner may designate from
time to time (whether before or after the event giving rise to potential
liability), in its sole and absolute discretion.

     "Limited Partner" means any Person (including the Company) named as a
Limited Partner in Exhibit A attached hereto, as such Exhibit may be amended
from time to time, or any Substituted Limited Partner or Additional Limited
Partner, in such Person's capacity as a Limited Partner of the Partnership.

     "Limited Partner Interest" means a Partnership Interest of a Limited
Partner in the Partnership representing a fractional part of the Partnership
Interests of all Partners and includes any and all benefits to which the holder
of such a Partnership Interest may be entitled, as provided in this Agreement,
together with all obligations of such Person to comply with the terms and
provisions of this Agreement. A Limited Partner Interest may be expressed as a
number of Partnership Units.

                                       9
<PAGE>
 
     "Limited Partner Recourse Debt Percentage" means with respect to certain of
the Limited Partners the percentage listed with respect to such Limited Partner
on the recourse debt level schedule attached hereto as Exhibit F.

     "Liquidating Event" has the meaning set forth in Section 13.1.

     "Liquidator" has the meaning set forth in Section 13.2.

     "Merging Partners" has the meaning set forth in the recitals.

     "Modified Adjusted Capital Account Balance" means, with respect to any
Partner, the Capital Account maintained for each Partner as of the end of each
Partnership taxable year (i) increased by any amounts which such Partner is
deemed to be obligated to restore pursuant to the penultimate sentences of
Regulations Sections 1.704-2(g)(1) and 1.704-2(i)(5); and (ii) decreased by the
items described in Regulations Sections 1.704-1(b)(2)(ii)(d)(4), 1.704-
1(b)(2)(ii)(d)(5), and 1.704-1(b)(2)(ii)(d)(6).

     "Net Income" means, for any taxable period, the excess, if any, of the
Partnership's items of income and gain for such taxable period over the
Partnership's items of loss and deduction for such taxable period.  The items
included in the calculation of Net Income shall be determined in accordance with
federal income tax accounting principles, subject to the specific adjustments
provided for in Exhibit B.

     "Net Loss" means, for any taxable period, the excess, if any, of the
Partnership's items of loss and deduction for such taxable period over the
Partnership's items of income and gain for such taxable period.  The items
included in the calculation of Net Loss shall be determined in accordance with
federal income tax accounting principles, subject to the specific adjustments
provided for in Exhibit B.

     "Nonrecourse Built-in Gain" means, with respect to any Contributed
Properties or Adjusted Properties that are subject to a mortgage or negative
pledge securing a Nonrecourse Liability, the amount of any taxable gain that
would be allocated to the Partners pursuant to Section 2.B of Exhibit C if such
properties were disposed of in a taxable transaction in full satisfaction of
such liabilities and for no other consideration.

     "Nonrecourse Deductions" has the meaning set forth in Regulations Section
1.704-2(b)(1), and the amount of Nonrecourse Deductions for a Partnership
taxable year shall be determined in accordance with the rules of Regulations
Section 1.704-2(c).

     "Nonrecourse Liability" has the meaning set forth in Regulations Section
1.752-1(a)(2).

     "Notice of Redemption" means the Notice of Redemption substantially in the
form of Exhibit D to this Agreement.

                                       10
<PAGE>
 
     "Partner" means a General Partner or a Limited Partner, and "Partners"
means the General Partner and the Limited Partners collectively.

     "Partner Minimum Gain" means an amount, with respect to each Partner
Nonrecourse Debt, equal to the Partnership Minimum Gain that would result if
such Partner Nonrecourse Debt were treated as a Nonrecourse Liability,
determined in accordance with Regulations Section 1.704-2(i)(3).

     "Partner Nonrecourse Debt" has the meaning set forth in Regulations Section
1.704-2(b)(4).

     "Partner Nonrecourse Deductions" has the meaning set forth in Regulations
Section 1.704-2(i)(2), and the amount of Partner Nonrecourse Deductions with
respect to a Partner Nonrecourse Debt for a Partnership taxable year shall be
determined in accordance with the rules of Regulations Section 1.704-2(i)(2).

     "Partnership" means the limited partnership formed under the Act and
pursuant to this Agreement, as it may be amended and/or restated, and any
successor thereto.

     "Partnership Interest" means an ownership interest in the Partnership
representing a Capital Contribution by either a Limited Partner or the General
Partner and includes any and all benefits to which the holder of such a
Partnership Interest may be entitled as provided in this Agreement, together
with all obligations of such Person to comply with the terms and provisions of
this Agreement.  A Partnership Interest may be expressed as a number of
Partnership Units.

     "Partnership Minimum Gain" has the meaning set forth in Regulations Section
1.704-2(b)(2), and the amount of Partnership Minimum Gain, as well as any net
increase or decrease in a Partnership Minimum Gain, for a Partnership taxable
year shall be determined in accordance with the rules of Regulations Section
1.704-2(d).

     "Partnership Record Date" means the record date established by the General
Partner for the distribution of Available Cash pursuant to Section 5.1 hereof,
which record date shall be the same as the record date established by the
Company for a distribution to its shareholders of some of all of its portion of
such distribution.

     "Partnership Unit" or "Unit" means a fractional, undivided share of the
Partnership Interests of all Partners issued pursuant to Sections 4.1, 4.2 and
4.3 (and includes any series or class of Preferred Units).  The number of
Partnership Units outstanding and (in the case of Common Units) the Percentage
Interest in the Partnership represented by such Units are set forth in Exhibit A
attached hereto, as such Exhibit may be amended from time to time.  The
ownership of Partnership Units shall be evidenced by such form of certificate
for units as the 

                                       11
<PAGE>
 
General Partner adopts from time to time unless the General Partner determines
that the Partnership Units shall be uncertificated securities.

     "Partnership Year" means the fiscal year of the Partnership, which shall be
the calendar year.

     "Percentage Interest" means, as to a Partner, its percentage interest as a
Common Unitholder determined by dividing the Common Units owned by such Partner
by the total number of Common Units then outstanding and as specified in Exhibit
A attached hereto, as such Exhibit may be amended from time to time.

     "Person" means an individual or a corporation, partnership, trust,
unincorporated organization, association or other entity.

     "Preferred Unit" means a limited partnership interest (of any series),
other than a Common Unit, represented by a fractional, undivided share of the
Partnership Interests of all Partners issued hereunder and which is designated
as a "Preferred Unit" (or as a particular class or series of Preferred Units)
herein and which has the rights, preferences and other privileges designated
herein (including by way of a Certificate of Designations) in respect of a
Preferred Unitholder.  The allocation of Preferred Units among the Partners
shall be set forth on Exhibit A, as may be amended from time to time.

     "Preferred Unitholder" means a limited partner that holds Preferred Units
(of any class or series).

     "Recapture Income" means any gain recognized by the Partnership upon the
disposition of any property or asset of the Partnership, which gain is
characterized as ordinary income because it represents the recapture of
deductions previously taken with respect to such property or asset.

     "Recourse Debt Amount" has the meaning set forth in Section 6.1B(2) hereof.

     "Redeeming Partner" has the meaning set forth in Section 8.6 hereof.

     "Redemption Right" shall have the meaning set forth in Section 8.6 hereof.

     "Regulations" means the Income Tax Regulations promulgated under the Code,
as such regulations may be amended from time to time (including corresponding
provisions of succeeding regulations).

     "REIT" means a real estate investment trust under Section 856 of the Code.

                                       12
<PAGE>
 
     "REIT Share" shall mean a share of common stock, par value $.01 per share,
of the Company.

     "REIT Shares Amount" shall mean a number of REIT Shares equal to the
product of the number of Common Units offered for redemption by a Redeeming
Partner, multiplied by the Conversion Factor in effect on the date of receipt by
the General Partner of a Notice of Redemption, provided that in the event the
Company issues to all holders of REIT Shares rights, options, warrants or
convertible or exchangeable securities entitling the shareholders to subscribe
for or purchase REIT Shares, or any other securities or property (collectively,
"Rights"), and the Rights have not expired at the Specified Redemption Date,
then the REIT Shares Amount shall also include the Rights that were issuable to
a holder of the REIT Shares Amount of REIT Shares on the applicable record date
relating to the issuance of such Rights.

     "Residual Gain" or "Residual Loss" means any item of gain or loss, as the
case may be, of the Partnership recognized for federal income tax purposes
resulting from a sale, exchange or other disposition of Contributed Property or
Adjusted Property, to the extent such item of gain or loss is not allocated
pursuant to Section 2.B.1(a) or 2.B.2(a) of Exhibit C to eliminate Book-Tax
Disparities.

     "Rights" shall have the meaning set forth in the definition of "REIT Shares
Amount."

     "704(c) Value" of any Contributed Property means the fair market value of
such property or other consideration at the time of contribution, as determined
by the General Partner using such reasonable method of valuation as it may
adopt; provided, however, that the 704(c) Value of any property deemed
contributed to the Partnership for federal income tax purposes upon termination
and reconstitution thereof pursuant to Section 708 of the Code shall be
determined in accordance with Exhibit B hereof.  Subject to Exhibit B hereof,
the General Partner shall, in its sole and absolute discretion, use such method
as it deems reasonable and appropriate to allocate the aggregate of the 704(c)
Values of Contributed Properties in a single or integrated transaction among the
separate properties on a basis proportional to their respective fair market
values.

     "Series One Preferred Unit" means a limited partnership interest
represented by a fractional, undivided share of the Partnership Interests of all
Partners issued hereunder which is designated as a Series One Preferred Unit and
which has the rights, preferences and other privileges designated herein in
respect of Series One Preferred Unitholders and designated in the Certificate of
Designations for Series One Preferred Units attached hereto.  The allocation of
Series One Preferred Units among the Partners shall be set forth on Exhibit A,
as may be amended from time to time.

     "Series One Preferred Unitholder" means a limited partner that holds Series
One Preferred Units.

                                       13
<PAGE>
 
     "Specified Redemption Date" means the tenth (10th) Business Day after
receipt by the Company of a Notice of Redemption; provided that no Specified
Redemption Date shall occur before that date that is fourteen (14) months after
the Effective Date, provided further that if the Company combines its
outstanding REIT Shares, no Specified Redemption Date shall occur after the
record date of such combination of REIT Shares and prior to the effective date
of such combination.

     "Subsidiary" means, with respect to any Person, any corporation,
partnership or other entity of which a majority of (i) the voting power of the
voting equity securities; or (ii) the outstanding equity interests, is owned,
directly or indirectly, by such Person.

     "Substituted Limited Partner" means a Person who is admitted as a Limited
Partner to the Partnership pursuant to Section 11.4.

     "Successor Designated Property" has the meaning set forth in Section 8.7
hereof.

     "Terminating Capital Transaction" means any sale or other disposition of
all or substantially all of the assets of the Partnership or a related series of
transactions that, taken together, result in the sale or other disposition of
all or substantially all of the assets of the Partnership.

     "Unrealized Gain" attributable to any item of Partnership property means,
as of any date of determination, the excess, if any, of (i) the fair market
value of such property (as determined under Exhibit B hereof) as of such date;
over (ii) the Carrying Value of such property (prior to any adjustment to be
made pursuant to Exhibit B hereof) as of such date.

     "Unrealized Loss" attributable to any item of Partnership property means,
as of any date of determination, the excess, if any, of (i) the Carrying Value
of such property (prior to any adjustment to be made pursuant to Exhibit B
hereof) as of such date; over (ii) the fair market value of such property (as
determined under Exhibit B hereof) as of such date.

     "Valuation Date" means the date of receipt by the General Partner of a
Notice of Redemption or, if such date is not a Business Day, the first Business
Day thereafter.

     "Value" means, with respect to a REIT Share, the average of the daily
market price for the ten (10) consecutive trading days immediately preceding the
Valuation Date.  The market price for each such trading day shall be: (i) if the
REIT Shares are listed or admitted to trading on any securities exchange or the
Nasdaq National Market System, the closing price on such day, or if no such sale
takes place on such day, the average of the closing bid and asked prices on such
day; (ii) if the REIT Shares are not listed or admitted to trading on any
securities exchange or the Nasdaq National Market System, the last reported sale
price on such day or, if no sale takes place on such day, the average of the
closing bid and asked prices on such day, as reported by a reliable quotation
source designated by the General Partner; or (iii) if the REIT 

                                       14
<PAGE>
 
Shares are not listed or admitted to trading on any securities exchange or the
Nasdaq National Market System and no such last reported sale price or closing
bid and asked prices are available, the average of the reported high bid and low
asked prices on such day, as reported by a reliable quotation source designated
by the General Partner, or if there shall be no bid and asked prices on such
day, the average of the high bid and low asked prices, as so reported, on the
most recent day (not more than ten (10) days prior to the date in question) for
which prices have been so reported; provided that if there are no bid and asked
prices reported during the ten (10) days prior to the date in question, the
Value of the REIT Shares shall be determined by the General Partner acting in
good faith on the basis of such quotations and other information as it
considers, in its reasonable judgment, appropriate. In the event the REIT Shares
Amount includes Rights, then the Value of such Rights shall be determined by the
General Partner acting in good faith on the basis of such quotations and other
information as it considers, in its reasonable judgment, appropriate, provided
that the Value of any rights issued pursuant to a "Shareholder Rights Plan"
shall be deemed to have no value unless a "triggering event" shall have occurred
(i.e., if the Rights issued pursuant thereto are no longer "attached" to the
REIT Shares and are able to trade independently).


                                   ARTICLE 2
                            ORGANIZATIONAL MATTERS

     Section 2.1   Formation

     The Partnership is a limited partnership organized pursuant to the
provisions of the Act. The Partners hereby agree to continue the Partnership
upon the terms and conditions set forth in this Agreement.  Except as expressly
provided herein to the contrary, the rights and obligations of the Partners and
the administration and termination of the Partnership shall be governed by the
Act.  The Partnership Interest of each Partner shall be personal property for
all purposes.

     Section 2.2   Name

     The name of the Partnership is Boston Properties Limited Partnership.  The
Partnership's business may be conducted under any other name or names deemed
advisable by the General Partner, including the name of the General Partner or
any Affiliate thereof.  The words "Limited Partnership," "L.P.," "Ltd." or
similar words or letters shall be included in the Partnership's name where
necessary for the purposes of complying with the laws of any jurisdiction that
so requires.  The General Partner in its sole and absolute discretion may change
the name of the Partnership at any time and from time to time and shall notify
the Limited Partners of such change in the next regular communication to the
Limited Partners.

     

                                       15
<PAGE>
 
 
     Section 2.3   Registered Office and Agent; Principal Office

     The address of the registered office of the Partnership in the State of
Delaware and the name and address of the registered agent for service of process
on the Partnership in the State of Delaware is The Corporation Trust Company,
Corporation Trust Center, 1209 Orange Street, Wilmington, Delaware 19801.  The
principal office of the Partnership shall be 8 Arlington Street, Boston, MA
02116, or such other place as the General Partner may from time to time
designate by notice to the Limited Partners.  The Partnership may maintain
offices at such other place or places within or outside the State of Delaware as
the General Partner deems advisable.

     Section 2.4   Power of Attorney

     A.   Each Limited Partner and each Assignee hereby constitutes and appoints
the General Partner, any Liquidator, and authorized officers and attorneys-in-
fact of each, and each of those acting singly, in each case with full power of
substitution, as its true and lawful agent and attorney-in-fact, with full power
and authority in its name, place and stead to:

          (1)  execute, swear to, acknowledge, deliver, file and record in the
               appropriate public offices (a) all certificates, documents and
               other instruments (including, without limitation, this Agreement
               and the Certificate of Limited Partnership and all amendments or
               restatements thereof) that the General Partner or the Liquidator
               deems appropriate or necessary to form, qualify or continue the
               existence or qualification of the Partnership as a limited
               partnership (or a partnership in which the Limited Partners have
               limited liability) in the State of Delaware and in all other
               jurisdictions in which the Partnership may or plans to conduct
               business or own property; (b) all instruments that the General
               Partner deems appropriate or necessary to reflect any amendment,
               change, modification or restatement of this Agreement in
               accordance with its terms; (c) all conveyances and other
               instruments or documents that the General Partner or the
               Liquidator deems appropriate or necessary to reflect the
               dissolution and liquidation of the Partnership pursuant to the
               terms of this Agreement, including, without limitation, a
               certificate of cancellation; (d) all instruments relating to the
               admission, withdrawal, removal or substitution of any Partner
               pursuant to, or other events described in, Article 11, 12 or 13
               hereof or the Capital Contribution of any Partner; and (e) all
               certificates, documents and other instruments relating to the
               determination of the rights, preferences and privileges of
               Partnership Interests; and

          (2)  execute, swear to, seal, acknowledge and file all ballots,
               consents, approvals, waivers, certificates and other instruments
               appropriate or 

                                       16
<PAGE>
 
               necessary, in the sole and absolute discretion of the General
               Partner or any Liquidator, to make, evidence, give, confirm or
               ratify any vote, consent, approval, agreement or other action
               which is made or given by the Partners hereunder or is consistent
               with the terms of this agreement or appropriate or necessary, in
               the sole discretion of the General Partner or any Liquidator, to
               effectuate the terms or intent of this Agreement.

Nothing contained herein shall be construed as authorizing the General Partner
or any Liquidator to amend this Agreement except in accordance with Article 14
hereof or as may be otherwise expressly provided for in this Agreement.

     B.   The foregoing power of attorney is hereby declared to be irrevocable
and a power coupled with an interest, in recognition of the fact that each of
the Partners will be relying upon the power of the General Partner and any
Liquidator to act as contemplated by this Agreement in any filing or other
action by it on behalf of the Partnership, and it shall survive and not be
affected by the subsequent Incapacity of any Limited Partner or Assignee and the
transfer of all or any portion of such Limited Partner's or Assignee's
Partnership Units and shall extend to such Limited Partner's or Assignee's
heirs, successors, assigns and personal representatives.  Each such Limited
Partner or Assignee hereby agrees to be bound by any representation made by the
General Partner or any Liquidator, acting in good faith pursuant to such power
of attorney, and each such Limited Partner or Assignee hereby waives any and all
defenses which may be available to contest, negate or disaffirm the action of
the General Partner or any Liquidator, taken in good faith under such power of
attorney.  Each Limited Partner or Assignee shall execute and deliver to the
General Partner or the Liquidator, within fifteen (15) days after receipt of the
General Partner's or Liquidator's request therefor, such further designation,
powers of attorney and other instruments as the General Partner or the
Liquidator, as the case may be, deems necessary to effectuate this Agreement and
the purposes of the Partnership.

     Section 2.5   Term

     The term of the Partnership commenced on April 8, 1997, the date on which
the Certificate of Limited Partnership was filed in the office of the Secretary
of State of the State of Delaware, and shall continue until December 31, 2095,
unless the Partnership is dissolved sooner pursuant to the provisions of Article
13 or as otherwise provided by law.

                                       17
<PAGE>
 
                                   ARTICLE 3
                                    PURPOSE

     Section 3.1   Purpose and Business

     The purpose and nature of the business to be conducted by the Partnership
is (i) to conduct any business that may be lawfully conducted by a limited
partnership organized pursuant to the Act; provided, however, that such business
shall be limited to and conducted in such a manner as to permit the Company at
all times to be classified as a REIT, unless the Company ceases to qualify as a
REIT for reasons other than the conduct of the business of the Partnership; (ii)
to enter into any partnership, joint venture, limited liability company or other
similar arrangement to engage in any of the foregoing or to own interests in any
entity engaged, directly or indirectly, in any of the foregoing; and (iii) to do
anything necessary or incidental to the foregoing.  In connection with the
foregoing, and without limiting the Company's right, in its sole discretion, to
cease qualifying as a REIT, the Partners acknowledge the Company's current
status as a REIT inures to the benefit of all of the Partners and not solely the
General Partner.  The General Partner shall also be empowered to do any and all
acts and things necessary or prudent to ensure that the Partnership will not be
classified as a "publicly traded partnership" for purposes of Section 7704 of
the Code, including but not limited to imposing restrictions on transfers and
restrictions on redemptions.

     Section 3.2   Powers

     The Partnership is empowered to do any and all acts and things necessary,
appropriate, proper, advisable, incidental to or convenient for the furtherance
and accomplishment of the purposes and business described herein and for the
protection and benefit of the Partnership, including, without limitation, full
power and authority, directly or through its ownership interest in other
entities, to enter into, perform and carry out contracts of any kind, borrow
money and issue evidences of indebtedness whether or not secured by mortgage,
deed of trust, pledge or other lien, acquire, own, manage, improve and develop
real property, and lease, sell, transfer and dispose of real property; provided,
however, that the Partnership shall not take, or refrain from taking, any action
which, in the judgment of the General Partner, in its sole and absolute
discretion, (i) could adversely affect the ability of the Company to continue to
qualify as a REIT; (ii) could subject the Company to any additional taxes under
Section 857 or Section 4981 of the Code; or (iii) could violate any law or
regulation of any governmental body or agency having jurisdiction over the
Company or its securities, unless such action (or inaction) shall have been
specifically consented to by the General Partner in writing.

                                       18
<PAGE>
 
                                  ARTICLE 4 
                             CAPITAL CONTRIBUTIONS

     Section 4.1   Capital Contributions of the Partners

     A.   Initial Capital Contributions and Recapitalization of the Partnership
on the Effective Date.  The Company and Edward H. Linde previously made Capital
Contributions to the Partnership upon its formation, which contributions were
returned to them on the Effective Date.  On the Effective Date, the Company, as
General Partner and as a Limited Partner, Edward H. Linde, as a Limited Partner,
and the other Persons listed on Schedule A made Capital Contributions to the
Partnership as set forth therein (except that certain of such Persons, as
described in the recitals hereof, were deemed to have made Capital Contributions
prior to the Effective Date).  On the Effective Date, the Partnership was
recapitalized, and the General Partner completed Exhibit A to reflect the
Capital Contributions made by each Partner, the Partnership Units assigned to
each Partner and (in the case of Common Units) the Percentage Interest in the
Partnership represented by such Common Units. The Capital Accounts of the
Partners and the Carrying Values of the Partnership's Assets were determined as
of the Effective Date pursuant to Section I.D of Exhibit B hereto to reflect the
Capital Contributions made prior to and on the Effective Date.  On the date of
the Subsequent Amendments as described in the recitals, the General Partner
completed Exhibit A to reflect the Capital Contributions made by each Partner,
the Partnership Units assigned to each Partner and the Percentage Interest in
the Partnership represented by such Partnership Units, and the Carrying Values
of the Partnership's Assets were redetermined as of the date of the Subsequent
Amendments pursuant to Section I.D of Exhibit B hereto.

     B.   General Partnership Interest.  A number of Common Units held by the
Company equal to one percent (1%) of all outstanding Common Units shall be
deemed to be the General Partner Partnership Units and shall be the General
Partnership Interest.  All other Partnership Units held by the Company shall be
deemed to be Limited Partnership Interests and shall be held by the General
Partner in its capacity as a Limited Partner in the Partnership.

     C.   Capital Contributions By Merger.  To the extent the Partnership
acquires any property by the merger of any other Person into the Partnership,
Persons who receive Partnership Interests in exchange for their interests in the
Person merging into the Partnership shall become Partners and shall be deemed to
have made Capital Contributions as provided in the applicable merger agreement
and as set forth in Exhibit A, as amended to reflect such deemed Capital
Contributions.

     D.   No Obligation to Make Additional Capital Contributions.  Each Partner
shall own the number of Common Units and other Partnership Units set forth for
such Partner in Exhibit A and shall have a Percentage Interest in the
Partnership as set forth in Exhibit A, which Percentage Interest shall be
adjusted in Exhibit A from time to time by the General Partner to the extent
necessary to reflect accurately redemptions, additional Capital 

                                       19
<PAGE>
 
Contributions, the issuance of additional Common Units (pursuant to any merger
or otherwise), or similar events having an effect on any Partner's Percentage
Interest. The number of Common Units held by the General Partner, in its
capacity as general partner, (equal to one percent (1%) of all outstanding
Common Units from time to time) shall be deemed to be the General Partner
Interest. Except as provided in Sections 4.2, 10.5 or elsewhere in this
Agreement, the Partners shall have no obligation to make any additional Capital
Contributions or loans to the Partnership.

     Section 4.2   Issuances of Additional Partnership Interests

     A.   The General Partner is hereby authorized to cause the Partnership from
time to time to issue to the Partners (including the General Partner and its
Affiliates) or other Persons (including, without limitation, in connection with
the contribution of property to the Partnership) additional Common Units or
other Partnership Interests in one or more classes, or one or more series of any
of such classes, with such designations, preferences and relative,
participating, optional or other special rights, powers and duties, including
rights, powers and duties senior to the Limited Partner Interests issued on the
Effective Date and any other Common Units thereafter issued, all as shall be
determined by the General Partner in its sole and absolute discretion subject to
Delaware law, including, without limitation, (i) the allocations of items of
Partnership income, gain, loss, deduction and credit to each such class or
series of Partnership Interests; (ii) the right of each such class or series of
Partnership Interests to share in Partnership distributions; and (iii) the
rights of each such class or series of Partnership Interests upon dissolution
and liquidation of the Partnership; provided that no such additional Partnership
Units or other Partnership Interests shall be issued to the General Partner,
unless either (a)(1) the additional Partnership Interests are issued in
connection with the grant, award or issuance of REIT Shares or other equity
interests by the Company, which REIT shares or other equity interests have
designations, preferences and other rights such that the economic interests
attributable to such REIT shares or other equity interests are substantially
similar to the designations, preferences and other rights of the additional
Partnership Interests issued to the General Partner in accordance with this
Section 4.2.A, and (2) the Company shall make a Capital Contribution to the
Partnership in an amount equal to the proceeds raised in connection with such
issuance, or (b) the additional Partnership Interests are issued to all Partners
in proportion to their respective Percentage Interests.  In addition, the
Company may acquire Units from other Partners pursuant to this Agreement.  In
the event that the Partnership issues Partnership Interests pursuant to this
Section 4.2.A, the General Partner shall make such revisions to this Agreement
(without any requirement of receiving approval of the Limited Partners)
including but not limited to the revisions described in Section 5.4, Section 6.1
and Section 8.6 hereof, as it deems necessary to reflect the issuance of such
additional Partnership Interests and the special rights, powers and duties
associated therewith. Unless specifically set forth otherwise by the General
Partner, any Partnership Interest issued after the Effective Date shall
represent Common Units.

                                       20
<PAGE>
 
     B.   From and after the date hereof, the Company shall not issue any
additional REIT Shares (other than REIT Shares issued pursuant to Section 8.6),
or rights, options, warrants or convertible or exchangeable securities
containing the right to subscribe for or purchase REIT Shares (collectively "New
Securities") other than to all holders of REIT Shares unless (i) the General
Partner shall cause the Partnership to issue to the Company, Partnership
Interests or rights, options, warrants or convertible or exchangeable securities
of the Partnership having designations, preferences and other rights, all such
that the economic interests are substantially similar to those of the New
Securities; and (ii) the Company contributes to the Partnership the proceeds
from the issuance of such New Securities and from the exercise of rights
contained in such New Securities.  Without limiting the foregoing, the Company
is expressly authorized to issue New Securities for no tangible value or for
less than fair market value, and the General Partner is expressly authorized to
cause the Partnership to issue to the Company corresponding Partnership
Interests, so long as (x) the General Partner concludes in good faith that such
issuance is in the interests of the Company and the Partnership (for example,
and not by way of limitation, the issuance of REIT Shares and corresponding
Units pursuant to an employee stock purchase plan providing for employee grants
or purchases of REIT Shares or employee stock options that have an exercise
price that is less than the fair market value of the REIT Shares, either at the
time of issuance or at the time of exercise); and (y) the Company contributes
all proceeds, if any, from such issuance and exercise to the Partnership.

     Section 4.3   Contribution of Proceeds of Issuance of REIT Shares

     In connection with the initial public offering of REIT Shares by the
Company and any other issuance of New Securities pursuant to Section 4.2, the
Company shall contribute to the Partnership any proceeds (or a portion thereof)
raised in connection with such issuance; provided that if the proceeds actually
received by the Company are less than the gross proceeds of such issuance as a
result of any underwriter's discount or other expenses paid or incurred in
connection with such issuance, then the Company shall be deemed to have made a
Capital Contribution to the Partnership in the amount equal to the sum of the
net proceeds of such issuance plus the amount of such underwriter's discount and
other expenses paid by the Company (which discount and expense shall be treated
as an expense for the benefit of the Partnership for purposes of Section 7.4).
In the case of employee acquisitions of New Securities at a discount from fair
market value or for no value in connection with a grant of New Securities, the
amount of such discount representing compensation to the employee, as determined
by the General Partner, shall be treated as an expense of the issuance of such
New Securities.


                                   ARTICLE 5
                                 DISTRIBUTIONS

     Section 5.1   Requirement and Characterization of Distributions

                                       21
<PAGE>
 
     Subject to the rights and preferences of any outstanding class or series of
Preferred Units as set forth in the Certificate of Designations therefor
attached hereto, or as otherwise provided herein with respect to Partnership
Interests other than Common Units, and except as provided in Section 5.1.B the
General Partner shall distribute at least quarterly an amount equal to one
hundred percent (100%) of Available Cash generated by the Partnership during
such quarter or shorter period to the Common Unitholders who are Partners on the
Partnership Record Date with respect to such quarter or shorter period in
accordance with their respective Percentage Interests on such Partnership Record
Date; provided that in no event may a Partner receive a distribution of
Available Cash with respect to a Common Unit if such Partner is entitled to
receive a distribution out of such Available Cash with respect to a REIT Share
for which such Common Unit has been exchanged and such distribution shall
instead be made to the Company.  The General Partner shall take such reasonable
efforts, as determined by it in its sole and absolute discretion and consistent
with the Company's qualification as a REIT, to distribute Available Cash (a) to
the Limited Partners so as to preclude any such distribution or portion thereof
from being treated as part of a sale of property to the Partnership by a Limited
Partner under Section 707 of the Code or the Regulations thereunder; provided
that the General Partner and the Partnership shall not have liability to a
Limited Partner under any circumstances as a result of any distribution to a
Limited Partner being so treated and (b) to satisfy the requirements for
qualifying as a REIT under the Code.  Unless otherwise expressly provided for
herein or in an agreement at the time a new class of Partnership Interests is
created in accordance with Article 4 hereof, no Partnership Interest shall be
entitled to a distribution in preference to any other Partnership Interest.

          B.   Notwithstanding the provisions of Section 5.1.A above or any
other provision of this Agreement, if for any quarter or shorter period with
respect to which a distribution is to be made (a "Distribution Period"), a
"Newly Issued Unit" (as such term is defined below) is outstanding on the
Partnership Record Date for such Distribution Period, there shall not be
distributed in respect of such Newly Issued Unit the amount (the "Full
Distribution Amount") that would otherwise be distributed in respect of such
Unit in accordance with Section 5.1.A.  Rather, the  General Partner shall cause
to be distributed with respect to each such Newly Issued Unit an amount equal to
the Full Distribution Amount multiplied by a fraction, the numerator of which
equals the number of days such Newly Issued Unit has been outstanding during the
Distribution Period and the denominator of which equals the total number of days
in such Distribution Period.  Any Available Cash not distributed to the holders
of Units by operation of this Section 5.1.B shall be retained by the Partnership
and applied toward future distributions or payment of Partnership expenses.  The
General Partner may, in its sole discretion, with respect to any distribution,
waive the application of this Section 5.1.B such that a Newly Issued Unit shall
receive the Full Distribution Amount (or any greater amount than would otherwise
be received under this Section 5.1.B but not in excess of the Full Distribution
Amount).  For purposes of this Section 5.1.B, the term "Newly Issued Unit" shall
mean, with respect to any Distribution Period, a Common Unit issued during such
Distribution Period, except that the term "Newly Issued Unit" shall not include
(i) a Common Unit issued to the Company as a result of the contribution by it of
proceeds from the issuance 

                                       22
<PAGE>
 
of New Securities (as contemplated by Sections 4.2 and 4.3) or (ii) (unless
otherwise provided by the General Partner) any Common Units issued in connection
with a split on or unit dividend of the Common Units.

     Section 5.2   Amounts Withheld

     All amounts withheld pursuant to the Code or any provisions of any state or
local tax law and Section 10.5 hereof with respect to any allocation, payment or
distribution to the Partners or Assignees shall be treated as amounts
distributed to the Partners or Assignees pursuant to Section 5.1 for all
purposes under this Agreement.

     Section 5.3   Distributions Upon Liquidation

     Proceeds from a Terminating Capital Transaction and any other cash received
or reductions in reserves made after commencement of the liquidation of the
Partnership shall be distributed to the Partners in accordance with Section
13.2.

     Section 5.4   Revisions to Reflect Issuance of Additional Partnership
Interests

     In the event that the Partnership issues additional Partnership Interests
to the General Partner or any Additional Limited Partner pursuant to Article 4
hereof, the General Partner shall make such revisions to this Article 5 as it
deems necessary to reflect the issuance of such additional Partnership Interests
and any special rights, duties or powers with respect thereto.



                                   ARTICLE 6
                                  ALLOCATIONS

     Section 6.1   Allocations For Capital Account Purposes

     For purposes of maintaining the Capital Accounts and in determining the
rights of the Partners among themselves, the Partnership's items of income,
gain, loss and deduction (computed in accordance with Exhibit B hereof) shall be
allocated among the Partners in each taxable year (or portion thereof) as
provided herein below.

     A.   After taking into account the provisions of Section 6.1.B below, Net
Income shall be allocated

          (i)  First, to the Partners in the same ratio and reverse order as Net
               Loss was allocated to such Partners pursuant to Section
               6.1.C(ii), (iii), (iv), (v) and (vi) for all fiscal years until
               the aggregate amount allocated to such 

                                       23
<PAGE>
 
               Partners pursuant to such
               provisions of Section 6.1.C equals the aggregate amount allocated
               pursuant to this Section 6.1.A(i);

          (ii) Thereafter, Net Income shall be allocated to the Partners in
               accordance with their respective Percentage Interests.

     B. (i) Notwithstanding the provisions of Section 6.1.A above, items of
gross income shall first be allocated to the holders of each class of Preferred
Units, (a) on a class by class basis (1) in the order of priority in which each
such class is entitled to receive distributions pursuant to the provisions of
Section 5.1 and/or the Certificate of Designations attached hereto and (2) in an
amount equal to the aggregate distributions made to each such class of Preferred
Units pursuant to the provisions of Section 5.1 or the Certificates of
Designations attached hereto (other than distributions properly treated as
return of capital), and (b) within each such class of Preferred Units in
proportion to the distributions with respect to such class referred to in clause
(2) above received by each holder of Preferred Units (other than distributions
properly treated as return of capital).

        (ii) In the event of the redemption of any Common Units which have been
converted from Preferred Units ("Converted units") pursuant to Section 8.6.A or
in the event of a liquidation of the Partnership (or a Partner's interest
therein, who is a holder of any such Converted Units), there shall be a special
allocation of Net Income (or items of gross income if there is insufficient Net
Income) to the Partner who holds such Converted Units being redeemed or
liquidated and with respect to such Converted Units in an amount such that the
Adjusted Capital Account balance allocable to each such Converted Unit is equal
to the Adjusted Capital Account balance allocable to each other Common Unit
(other than any Converted Unit not being redeemed at such time). This Section
6.1.B(ii) shall not apply if the Company exercises its right to purchase such
Converted Units pursuant to Section 8.6.B. However, this Section 6.1.B(ii) shall
apply if the Company or any other transferee of a Converted Unit subsequently
has such Converted Unit redeemed or liquidated by the Partnership.




     C.   After giving effect to the special allocations set forth in Section 1
of Exhibit C attached hereto, Net Losses shall be allocated to the Partners in
the following order:

          (i)    First, in the same ratio and reverse order as Net Income was
                 allocated to the Partners pursuant to the provisions of Section
                 6.1.A(ii) for all fiscal years until the aggregate amount of
                 Net Income previously allocated to such Partners pursuant to
                 such provisions of Section 6.1.A(ii) equals the aggregate
                 amount of Net Loss allocated to such Partners pursuant to this
                 Section 6.1.B(i);

          (ii)   Second, to the Partners, in proportion to their Percentage
                 Interests until each Partner's Modified Adjusted Capital
                 Account balance has been reduced to zero, excluding, for this
                 purpose, the portion of any such Capital Account attributable
                 to Capital Contributions made with respect to Preferred Units;

          (iii)  Third, to the holders of each class of Preferred Units, on a
                 class by class basis, in the reverse priority in which each
                 such class is entitled to distributions pursuant to the
                 provisions of Section 5.1.A and/or the Certificate of
                 Designations attached hereto, and within such class to each
                 holder of such class of Preferred Units, pro rata, in
                 proportion to the portion of their Modified Adjusted Capital
                 Account balance attributable to Capital Contributions made with
                 respect to such class of Preferred Units until such portion of
                 their Modified Adjusted Capital Account balance has been
                 reduced to zero;

                                       24
<PAGE>
 
          (iv)   Fourth, to the General Partner until the General Partner's
                 negative Modified Adjusted Capital Account balance is equal to
                 the excess, if any, of the aggregate recourse liabilities of
                 the Partnership over the aggregate amount of recourse
                 partnership debt (the "Recourse Debt Amount") set forth on the
                 recourse debt level schedule attached hereto as Exhibit F, as
                 appropriately amended from time to time;

          (v)    Fifth, to the Limited Partners listed on the recourse debt
                 level schedule attached hereto as Exhibit F, in proportion to
                 each such Limited Partner's Limited Partner Recourse Debt
                 Percentage, until the sum of such Limited Partners' negative
                 Modified Adjusted Capital Account balances equals the Recourse
                 Debt Amount; and

          (vi)   Sixth, 100% to the General Partner.

     C.   The Partners agree that Nonrecourse Liabilities of the Partnership
shall be allocated among the Partners in accordance with the provisions of
Regulations Section 1.752-3, as modified by any guidance published by the
Internal Revenue Service, or otherwise reasonably interpreted.

     D.   Any gain allocated to the Partners upon the sale or other taxable
disposition of any Partnership asset shall, to the extent possible, after taking
into account other required allocations of gain pursuant to Exhibit C, be
characterized as Recapture Income in the same proportions and to the same extent
as such Partners have been allocated any deductions directly or indirectly
giving rise to the treatment of such gains as Recapture Income.

     In the event that the Partnership issues additional Partnership Interests
to the General Partner, or any Additional Limited Partner pursuant to Article 4
hereof, the General Partner shall make such revisions to this Section 6.1 as it
determines are necessary to reflect the terms of the issuance of such additional
Partnership Interests, including making preferential allocations to certain
classes of Partnership Interests.


                                   ARTICLE 7
                     MANAGEMENT AND OPERATIONS OF BUSINESS

     Section 7.1   Management

     A.   Except as otherwise expressly provided in this Agreement, all
management powers over the business and affairs of the Partnership are and shall
be exclusively vested in the General Partner, and no Limited Partner shall have
any right to participate in or exercise control or management power over the
business and affairs of the Partnership.  The General Partner may not be removed
by the Limited Partners with or without cause.  In addition to the 

                                       25
<PAGE>
 
powers now or hereafter granted a general partner of a limited partnership under
applicable law or which are granted to the General Partner under any other
provision of this Agreement, the General Partner, subject to Section 7.3 hereof,
shall have full power and authority to do all things deemed necessary or
desirable by it to conduct the business of the Partnership, to exercise all
powers set forth in Section 3.2 hereof and to effectuate the purposes set forth
in Section 3.1 hereof, including, without limitation:

          (1)  the making of any expenditures, the lending or borrowing of money
               (including, without limitation, making prepayments on loans and
               borrowing money to permit the Partnership to make distributions
               to its Partners in such amounts as will permit the Company (so
               long as the Company qualifies as a REIT) to avoid the payment of
               any federal income tax (including, for this purpose, any excise
               tax pursuant to Section 4981 of the Code) and to make
               distributions to its shareholders in amounts sufficient to permit
               the Company to maintain REIT status), the assumption or guarantee
               of, or other contracting for, indebtedness and other liabilities,
               the issuance of evidence of indebtedness (including the securing
               of the same by deed, mortgage, deed of trust or other lien or
               encumbrance on the Partnership's assets) and the incurring of any
               obligations it deems necessary for the conduct of the activities
               of the Partnership;

          (2)  the making of tax, regulatory and other filings, or rendering of
               periodic or other reports to governmental or other agencies
               having jurisdiction over the business or assets of the
               Partnership, the registration of any class of securities of the
               Partnership under the Securities Exchange Act of 1934, as
               amended, and the listing of any debt securities of the
               Partnership on any exchange;

          (3)  the acquisition, disposition, mortgage, pledge, encumbrance,
               hypothecation or exchange of any assets of the Partnership
               (including the exercise or grant of any conversion, option,
               privilege, or subscription right or other right available in
               connection with any assets at any time held by the Partnership)
               or the merger or other combination of the Partnership with or
               into another entity (all of the foregoing subject to any prior
               approval only to the extent required by Section 7.3 hereof);

          (4)  the use of the assets of the Partnership (including, without
               limitation, cash on hand) for any purpose consistent with the
               terms of this Agreement and on any terms it sees fit, including,
               without limitation, the financing of the conduct of the
               operations of the Company, the Partnership or any of the
               Partnership's Subsidiaries, the lending of funds to other Persons
               (including, without limitation, the Subsidiaries of the

                                       26
<PAGE>
 
               Partnership and/or the Company) and the repayment of obligations
               of the Partnership and its Subsidiaries and any other Person in
               which it has an equity investment, and the making of capital
               contributions to its Subsidiaries;

          (5)  the management, operation, leasing, landscaping, repair,
               alteration, demolition or improvement of any real property or
               improvements owned by the Partnership or any Subsidiary of the
               Partnership;

          (6)  the negotiation, execution, and performance of any contracts,
               conveyances or other instruments that the General Partner
               considers useful or necessary to the conduct of the Partnership's
               operations or the implementation of the General Partner's powers
               under this Agreement, including contracting with contractors,
               developers, consultants, accountants, legal counsel, other
               professional advisors and other agents and the payment of their
               expenses and compensation out of the Partnership's assets;

          (7)  the distribution of Partnership cash or other Partnership assets
               in accordance with this Agreement;

          (8)  holding, managing, investing and reinvesting cash and other
               assets of the Partnership;

          (9)  the collection and receipt of revenues and income of the
               Partnership;

          (10) the establishment of one or more divisions of the Partnership,
               the selection and dismissal of employees of the Partnership
               (including, without limitation, employees having titles such as
               "president," "vice president," "secretary" and "treasurer" of the
               Partnership), and agents, outside attorneys, accountants,
               consultants and contractors of the Partnership, and the
               determination of their compensation and other terms of employment
               or hiring;

          (11) the maintenance of such insurance for the benefit of the
               Partnership, the Partner and directors and officers thereof as it
               deems necessary or appropriate;

          (12) the formation of, or acquisition of an interest in, and the
               contribution of property to, any further limited or general
               partnerships, joint ventures or other relationships that it deems
               desirable (including, without limitation, the acquisition of
               interests in, and the contributions of property to, its

                                       27
<PAGE>
 
               Subsidiaries and any other Person in which it has an equity
               investment from time to time);

          (13) the control of any matters affecting the rights and obligations
               of the Partnership, including the settlement, compromise,
               submission to arbitration or any other form of dispute
               resolution, or abandonment of, any claim, cause of action,
               liability, debt or damages, due or owing to or from the
               Partnership, the commencement or defense of suits, legal
               proceedings, administrative proceedings, arbitration or other
               forms of dispute resolution, and the representation of the
               Partnership in all suits or legal proceedings, administrative
               proceedings, arbitrations or other forms of dispute resolution,
               the incurring of legal expense, and the indemnification of any
               Person against liabilities and contingencies to the extent
               permitted by law;

          (14) the undertaking of any action in connection with the
               Partnership's direct or indirect investment in its Subsidiaries
               or any other Person (including, without limitation, the
               contribution or loan of funds by the Partnership to such
               Persons);

          (15) the determination of the fair market value of any Partnership
               property distributed in kind using such reasonable method of
               valuation as the General Partner may adopt;

          (16) the exercise, directly or indirectly, through any attorney-in-
               fact acting under a general or limited power of attorney, of any
               right, including the right to vote, appurtenant to any asset or
               investment held by the Partnership;

          (17) the exercise of any of the powers of the General Partner
               enumerated in this Agreement on behalf of or in connection with
               any Subsidiary of the Partnership or any other Person in which
               the Partnership has a direct or indirect interest, or jointly
               with any such Subsidiary or other Person;

          (18) the exercise of any of the powers of the General Partner
               enumerated in this Agreement on behalf of any Person in which the
               Partnership does not have an interest pursuant to contractual or
               other arrangements with such Person;

          (19) the making, execution and delivery of any and all deeds, leases,
               notes, mortgages, deeds of trust, security agreements,
               conveyances, contracts, guarantees, warranties, indemnities,
               waivers, releases or legal instruments or agreements in writing
               necessary or appropriate, in the 

                                       28
<PAGE>
 
               judgment of the General Partner,
               for the accomplishment of any of the powers of the General
               Partner enumerated in this Agreement; and

          (20) the issuance of additional Partnership Units, as appropriate, in
               connection with Capital Contributions by Additional Limited
               Partners and additional Capital Contributions by Partners
               pursuant to Article 4 hereof.

     B.   Each of the Limited Partners agrees that the General Partner is
authorized to execute, deliver and perform the above-mentioned agreements and
transactions on behalf of the Partnership without any further act, approval or
vote of the Partners, notwithstanding any other provision of this Agreement
(except as provided in Section 7.3 or Section 8.7), the Act or any applicable
law, rule or regulation, to the fullest extent permitted under the Act or other
applicable law, rule or regulation.  The execution, delivery or performance by
the General Partner or the Partnership of any agreement authorized or permitted
under this Agreement shall not constitute a breach by the General Partner of any
duty that the General Partner may owe the Partnership or the Limited Partners or
any other Persons under this Agreement or of any duty stated or implied by law
or equity.

     C.   At all times from and after the date hereof, the General Partner may
cause the Partnership to establish and maintain at any and all times working
capital accounts and other cash or similar balances in such amounts as the
General Partner, in its sole and absolute discretion, deems appropriate and
reasonable from time to time.

     D.   In exercising its authority under this Agreement, the General Partner
may, but shall be under no obligation to, take into account the tax consequences
to any Partner of any action taken by it.  The General Partner and the
Partnership shall not have liability to a Limited Partner under any
circumstances, as a result of an income tax liability incurred by such Limited
Partner as a result of an action (or inaction) by the General Partner taken
pursuant to its authority under this Agreement and in accordance with the terms
of Section 7.3 and Section 8.7.  The Limited Partners expressly acknowledge that
the General Partner is acting on behalf of the Partnership, the Company and the
Company's stockholders collectively.

     Section 7.2   Certificate of Limited Partnership

     The General Partner has previously filed the Certificate of Limited
Partnership with the Secretary of State of the State of Delaware as required by
the Act.  The General Partner shall use all reasonable efforts to cause to be
filed such other certificates or documents as may be reasonable and necessary or
appropriate for the formation, continuation, qualification and operation of a
limited partnership (or a partnership in which the limited partners have limited
liability) in the State of Delaware and any other state, or the District of
Columbia, in which the Partnership may elect to do business or own property.  To
the extent that such action is determined by the General Partner to be
reasonable and necessary or appropriate, the General 

                                       29
<PAGE>
 
Partner shall file amendments to and restatements of the Certificate of Limited
Partnership and do all of the things to maintain the Partnership as a limited
partnership (or a partnership in which the limited partners have limited
liability) under the laws of the State of Delaware and each other state, or the
District of Columbia, in which the Partnership may elect to do business or own
property. Subject to the terms of Section 8.5.A(4) hereof, the General Partner
shall not be required, before or after filing, to deliver or mail a copy of the
Certificate of Limited Partnership or any amendment thereto to any Limited
Partner.

     Section 7.3   Restrictions on General Partner Authority.  The General
Partner may not take any action in contravention of an express prohibition or
limitation of this Agreement without the written Consent of Limited Partners
holding a majority of the Common Units of the Limited Partners (including
Limited Partner Common Units held by the Company), or such other percentage of
the Limited Partners as may be specifically provided for under a provision of
this Agreement.

     Section 7.4  Reimbursement of the General Partner and the Company; DRIP's
                  and Repurchase Programs

     A.   Except as provided in this Section 7.4 and elsewhere in this Agreement
(including the provisions of Articles 5 and 6 regarding distributions, payments,
and allocations to which it may be entitled), the General Partner shall not be
compensated for its services as general partner of the Partnership.

     B.   The General Partner shall be reimbursed on a monthly basis, or such
other basis as it may determine in its sole and absolute discretion, for all
expenses that it incurs relating to the ownership and operation of, or for the
benefit of, the Partnership (including, without limitation, (i) expenses
relating to the ownership of interests in and operation of the Partnership, (ii)
compensation of the Company's officers and employees including, without
limitation, payments under the General Partner's Stock Incentive Plans that
provides for stock units, or other phantom stock, pursuant to which employees of
the General Partner will receive payments based upon dividends on or the value
of REIT Shares, (iii) director fees and expenses and (iv) all costs and expenses
of being a public company, including costs of filings with the SEC, reports and
other distributions to its stockholders); provided that the amount of any such
reimbursement shall be reduced by any interest earned by the General Partner
with respect to bank accounts or other instruments or accounts held by it on
behalf of the Partnership.  The Partners acknowledge that all such expenses of
the General Partner are deemed to be for the benefit of the Partnership.  Such
reimbursement shall be in addition to any reimbursement made as a result of
indemnification pursuant to Section 7.7 hereof.

     C.   As set forth in Section 4.3, the Company shall be treated as having
made a Capital Contribution in the amount of all expenses that it incurs
relating to the Company's initial public offering REIT of Shares.

                                       30
<PAGE>
 
     D.   In the event that the Company shall elect to purchase from its
shareholders REIT Shares for the purpose of delivering such REIT Shares to
satisfy an obligation under any dividend reinvestment program adopted by the
Company, any employee stock purchase plan adopted by the Company, or any similar
obligation or arrangement undertaken by the Company in the future or for the
purpose of retiring such REIT Shares, the purchase price paid by the Company for
such REIT Shares and any other expenses incurred by the Company in connection
with such purchase shall be considered expenses of the Partnership and shall be
advanced to the Company or reimbursed to the Company, subject to the condition
that: (i) if such REIT Shares subsequently are sold by the Company, the Company
shall pay to the Partnership any proceeds received by the Company for such REIT
Shares (which sales proceeds shall include the amount of dividends reinvested
under any dividend reinvestment or similar program provided that a transfer of
REIT Shares for Units pursuant to Section 8.6 would not be considered a sale for
such purposes); and (ii) if such REIT Shares are not retransferred by the
Company within thirty (30) days after the purchase thereof, or the Company
otherwise determines not to retransfer such REIT Shares, the Company, as General
Partner, shall cause the Partnership to redeem a number of Common Units held by
the Company, as a Limited Partner, equal to the product obtained by dividing the
number of such REIT Shares by the Conversion Factor (in which case such
advancement or reimbursement of expenses shall be treated as having been made as
a distribution in redemption of such number of Units held by the Company).

     Section 7.5   Outside Activities of the General Partner

     The General Partner shall not directly or indirectly enter into or conduct
any business other than in connection with the ownership, acquisition and
disposition of Partnership Interests and the management of the business of the
Partnership, and such activities as are incidental thereto.  The General Partner
and any Affiliates of the General Partner may acquire Limited Partner Interests
and shall be entitled to exercise all rights of a Limited Partner relating to
such Limited Partner Interests.

     Section 7.6   Contracts with Affiliates

     A.   The Partnership may lend or contribute funds or other assets to its
Subsidiaries or other Persons in which it has an equity investment and such
Persons may borrow funds from the Partnership, on terms and conditions
established in the sole and absolute discretion of the General Partner.  The
foregoing authority shall not create any right or benefit in favor of any
Subsidiary or any other Person.

     B.   Except as provided in Section 7.5, the Partnership may transfer assets
to joint ventures, other partnerships, corporations or other business entities
in which it is or thereby becomes a participant upon such terms and subject to
such conditions consistent with this Agreement and applicable law as the General
Partner, in its sole and absolute discretion, believes are advisable.

                                       31
<PAGE>
 
     C.   Except as expressly permitted by this Agreement, neither the General
Partner nor any of its Affiliates shall sell, transfer or convey any property
to, or purchase any property from, the Partnership, directly or indirectly,
except pursuant to transactions that are determined by the General Partner in
good faith to be fair and reasonable.

     D.   The General Partner, in its sole and absolute discretion and without
the approval of the Limited Partners, may propose and adopt, on behalf of the
Partnership, employee benefit plans, stock option plans, and similar plans
funded by the Partnership for the benefit of employees of the General Partner,
the Partnership, Subsidiaries of the Partnership or any Affiliate of any of them
in respect of services performed, directly or indirectly, for the benefit of the
Partnership, the General Partner, or any Subsidiaries of the Partnership.

     E.   The General Partner is expressly authorized to enter into, in the name
and on behalf of the Partnership, a right of first opportunity arrangement and
other conflict avoidance agreements with various Affiliates of the Partnership
and the General Partner, on such terms as the General Partner, in its sole and
absolute discretion, believes are advisable.

     Section 7.7   Indemnification

     A.   To the fullest extent permitted by Delaware law, the Partnership shall
indemnify each Indemnitee from and against any and all losses, claims, damages,
liabilities, joint or several, expenses (including, without limitation,
attorneys fees and other legal fees and expenses), judgments, fines,
settlements, and other amounts arising from any and all claims, demands,
actions, suits or proceedings, civil, criminal, administrative or investigative,
that relate to the operations of the Partnership or the Company as set forth in
this Agreement, in which such Indemnitee may be involved, or is threatened to be
involved, as a party or otherwise, unless it is established that: (i) the act or
omission of the Indemnitee was material to the matter giving rise to the
proceeding and either was committed in bad faith or was the result of active and
deliberate dishonesty; (ii) the Indemnitee actually received an improper
personal benefit in money, property or services; or (iii) in the case of any
criminal proceeding, the Indemnitee had reasonable cause to believe that the act
or omission was unlawful.  Without limitation, the foregoing indemnity shall
extend to any liability of any Indemnitee, pursuant to a loan guaranty (except a
guaranty by a limited partner of nonrecourse indebtedness of the Partnership or
as otherwise provided in any such loan guaranty) or otherwise for any
indebtedness of the Partnership or any Subsidiary of the Partnership (including
without limitation, any indebtedness which the Partnership or any Subsidiary of
the Partnership has assumed or taken subject to), and the General Partner is
hereby authorized and empowered, on behalf of the Partnership, to enter into one
or more indemnity agreements consistent with the provisions of this Section 7.7
in favor of any Indemnitee having or potentially having liability for any such
indebtedness.  The termination of any proceeding by conviction of an Indemnitee
or upon a plea of nolo contendere or its equivalent by an Indemnitee, or an
entry of an order of probation against an Indemnitee prior to judgment, creates
a rebuttable presumption that such 

                                       32
<PAGE>
 
Indemnitee acted in a manner contrary to that specified in this Section 7.7.A.
Any indemnification pursuant to this Section 7.7 shall be made only out of the
assets of the Partnership, and neither the General Partner nor any Limited
Partner shall have any obligation to contribute to the capital of the
Partnership, or otherwise provide funds, to enable the Partnership to fund its
obligations under this Section 7.7.

     B.   Reasonable expenses incurred by an Indemnitee who is a party to a
proceeding shall be paid or reimbursed by the Partnership in advance of the
final disposition of the proceeding upon receipt by the Partnership of (i) a
written affirmation by the Indemnitee of the Indemnitee's good faith belief that
the standard of conduct necessary for indemnification by the Partnership as
authorized in Section 7.7.A. has been met, and (ii) a written undertaking by or
on behalf of the Indemnitee to repay the amount if it shall ultimately be
determined that the standard of conduct has not been met.

     C.   The indemnification provided by this Section 7.7 shall be in addition
to any other rights to which an Indemnitee or any other Person may be entitled
under any agreement, pursuant to any vote of the Partners, as a matter of law or
otherwise, and shall continue as to an Indemnitee who has ceased to serve in
such capacity unless otherwise provided in a written agreement pursuant to which
such Indemnitee is indemnified.

     D.   The Partnership may, but shall not be obligated to, purchase and
maintain insurance, on behalf of the Indemnitees and such other Persons as the
General Partner shall determine, against any liability that may be asserted
against or expenses that may be incurred by such Person in connection with the
Partnership's activities, regardless of whether the Partnership would have the
power to indemnify such Person against such liability under the provisions of
this Agreement.

     E.   For purposes of this Section 7.7, the Partnership shall be deemed to
have requested an Indemnitee to serve as fiduciary of an employee benefit plan
whenever the performance by it of its duties to the Partnership also imposes
duties on, or otherwise involves services by, it to the plan or participants or
beneficiaries of the plan; excise taxes assessed on an Indemnitee with respect
to an employee benefit plan pursuant to applicable law shall constitute fines
within the meaning of Section 7.7; and actions taken or omitted by the
Indemnitee with respect to an employee benefit plan in the performance of its
duties for a purpose reasonably believed by it to be in the interest of the
participants and beneficiaries of the plan shall be deemed to be for a purpose
which is not opposed to the best interests of the Partnership.

     F.   In no event may an Indemnitee subject any of the Partners to personal
liability by reason of the indemnification provisions set forth in this
Agreement.

     G.   An Indemnitee shall not be denied indemnification in whole or in part
under this Section 7.7 because the Indemnitee had an interest in the transaction
with respect to which the 

                                       33
<PAGE>
 
indemnification applies if the transaction was otherwise permitted by the terms
of this Agreement.

     H.   The provisions of this Section 7.7 are for the benefit of the
Indemnitees, their heirs, successors, assigns and administrators and shall not
be deemed to create any rights for the benefit of any other Persons.  Any
amendment, modification or repeal of this Section 7.7 or any provision hereof
shall be prospective only and shall not in any way affect the Partnership's
liability to any Indemnitee under this Section 7.7, as in effect immediately
prior to such amendment, modification, or repeal with respect to claims arising
from or relating to matters occurring, in whole or in part, prior to such
amendment, modification or repeal, regardless of when such claims may arise or
be asserted.

     Section 7.8   Liability of the General Partner

     A.   Notwithstanding anything to the contrary set forth in this Agreement,
the General Partner and its officers and directors shall not be liable for
monetary damages to the Partnership, any Partners or any Assignees for losses
sustained or liabilities incurred as a result of errors in judgment or of any
act or omission if the General Partner acted in good faith.

     B.   The Limited Partners expressly acknowledge that, as stated in Section
7.1.D, the General Partner is acting on behalf of the Partnership and the
shareholders of the Company collectively, that the General Partner is under no
obligation to consider the separate interests of the Limited Partners in
deciding whether to cause the Partnership to take (or decline to take) any
actions, and that the General Partner shall not be liable for monetary damages
for losses sustained, liabilities incurred, or benefits not derived by Limited
Partners in connection with such decisions, provided that the General Partner
has acted in good faith.

     C.   Subject to its obligations and duties as General Partner set forth in
Section 7.1.A hereof, the General Partner may exercise any of the powers granted
to it by this Agreement and perform any of the duties imposed upon it hereunder
either directly or by or through its agents.  The General Partner shall not be
responsible for any misconduct or negligence on the part of any such agent
appointed by the General Partner in good faith.

     D.   Any amendment, modification or repeal of this Section 7.8 or any
provision hereof shall be prospective only and shall not in any way affect the
limitations on the General Partner's and its officers' and directors' liability
to the Partnership and the Limited Partners under this Section 7.8 as in effect
immediately prior to such amendment, modification or repeal with respect to
claims arising from or relating to matters occurring, in whole or in part, prior
to such amendment, modification or repeal, regardless of when such claims may
arise or be asserted.

                                       34
<PAGE>
 
     Section 7.9   Other Matters Concerning the General Partner

     A.   The General Partner may rely and shall be protected in acting, or
refraining from acting, upon any resolution, certificate, statement, instrument,
opinion, report, notice, request, consent, order, bond, debenture, or other
paper or document believed by it in good faith to be genuine and to have been
signed or presented by the proper party or parties.

     B.   The General Partner may consult with legal counsel, accountants,
appraisers, management consultants, investment bankers, architects, engineers,
environmental consultants and other consultants and advisers selected by it, and
any act taken or omitted to be taken in reliance upon the opinion of such
Persons as to matters which such General Partner reasonably believes to be
within such Person's professional or expert competence shall be conclusively
presumed to have been done or omitted in good faith and in accordance with such
opinion.

     C.   The General Partner shall have the right, in respect of any of its
powers or obligations hereunder, to act through any of its duly authorized
officers and duly appointed attorneys-in-fact.  Each such attorney shall, to the
extent provided by the General Partner in the power of attorney, have full power
and authority to do and perform all and every act and duty which is permitted or
required to be done by the General Partner hereunder.

     D.   Notwithstanding any other provisions of this Agreement or the Act, any
action of the General Partner on behalf of the Partnership or any decision of
the General Partner to refrain from acting on behalf of the Partnership,
undertaken in the good faith belief that such action or omission is necessary or
advisable in order (i) to protect the ability of the Company to continue to
qualify as a REIT; or (ii) to avoid the Company incurring any taxes under
Section 857 or Section 4981 of the Code, is expressly authorized under this
Agreement and is deemed approved by all of the Limited Partners.

     Section 7.10  Title to Partnership Assets

     Title to Partnership assets, whether real, personal or mixed and whether
tangible or intangible, shall be deemed to be owned by the Partnership as an
entity, and no Partner, individually or collectively, shall have any ownership
interest in such Partnership assets or any portion thereof.  Title to any or all
of the Partnership assets may be held in the name of the Partnership, the
General Partner or one or more nominees, as the General Partner may determine,
including Affiliates of the General Partner.  The General Partner hereby
declares and warrants that any Partnership assets for which legal title is held
in the name of the General Partner or any nominee or Affiliate of the General
Partner shall be held by the General Partner for the use and benefit of the
Partnership in accordance with the provisions of this Agreement; provided,
however, that the General Partner shall use its best efforts to cause beneficial
and record title to such assets to be vested in the Partnership as soon as
reasonably practicable if failure to so vest such title would have a material
adverse effect on the Partnership.  All 

                                       35
<PAGE>
 
Partnership assets shall be recorded as the property of the Partnership in its
books and records, irrespective of the name in which legal title to such
Partnership assets is held.

     Section 7.11  Reliance by Third Parties

     Notwithstanding anything to the contrary in this Agreement, any Person
dealing with the Partnership shall be entitled to assume that the General
Partner has full power and authority, without consent or approval of any other
Partner or Person, to encumber, sell or otherwise use in any manner any and all
assets of the Partnership and to enter into any contracts on behalf of the
Partnership, and take any and all actions on behalf of the Partnership and such
Person shall be entitled to deal with the General Partner as if the General
Partner were the Partnership's sole party in interest, both legally and
beneficially.  Each Limited Partner hereby waives any and all defenses or other
remedies which may be available against such Person to contest, negate or
disaffirm any action of the General Partner in connection with any such dealing.
In no event shall any Person dealing with the General Partner or its
representatives be obligated to ascertain that the terms of this Agreement have
been complied with or to inquire into the necessity or expedience of any act or
action of the General Partner or its representatives.  Each and every
certificate, document or other instrument executed on behalf of the Partnership
by the General Partner or its representatives shall be conclusive evidence in
favor of any and every Person relying thereon or claiming thereunder that (i) at
the time of the execution and delivery of such certificate, document or
instrument, this Agreement was in full force and effect; (ii) the Person
executing and delivering such certificate, document or instrument was duly
authorized and empowered to do so for and on behalf of the Partnership; and
(iii) such certificate, document or instrument was duly executed and delivered
in accordance with the terms and provisions of this Agreement and is binding
upon the Partnership.


                                   ARTICLE 8
                  RIGHTS AND OBLIGATIONS OF LIMITED PARTNERS

     Section 8.1   Limitation of Liability

     The Limited Partners shall have no liability under this Agreement except as
expressly provided in this Agreement, including Section 10.5 hereof, or under
the Act.

     Section 8.2   Management of Business

     No Limited Partner or Assignee (other than the General Partner, any of its
Affiliates or any officer, director, employee, agent or trustee of the General
Partner, the Partnership or any of their Affiliates, in their capacity as such)
shall take part in the operation, management or control (within the meaning of
the Act) of the Partnership's business, transact any business in the
Partnership's name or have the power to sign documents for or otherwise bind the

                                       36
<PAGE>
 
Partnership. The transaction of any such business by the General Partner, any of
its Affiliates or any officer, director, employee, partner, agent or trustee of
the General Partner, the Partnership or any of their Affiliates, in their
capacity as such, shall not affect, impair or eliminate the limitations on the
liability of the Limited Partners or Assignees under this Agreement.

     Section 8.3   Outside Activities of Limited Partners

     Subject to any agreements entered into pursuant to Section 7.6.E hereof and
any other agreements entered into by a Limited Partner or its Affiliates with
the Partnership or any of its Subsidiaries, any Limited Partner (other than the
Company) and any officer, director, employee, agent, trustee, Affiliate or
shareholder of any Limited Partner shall be entitled to and may have business
interests and engage in business activities in addition to those relating to the
Partnership, including business interests and activities that are in direct
competition with the Partnership or that are enhanced by the activities of the
Partnership.  Neither the Partnership nor any Partners shall have any rights by
virtue of this Agreement in any business ventures of any Limited Partner or
Assignee.  None of the Limited Partners (other than the Company) nor any other
Person shall have any rights by virtue of this Agreement or the Partnership
relationship established hereby in any business ventures of any other Person and
such Person shall have no obligation pursuant to this Agreement to offer any
interest in any such business ventures to the Partnership, any Limited Partner
or any such other Person, even if such opportunity is of a character which, if
presented to the Partnership, any Limited Partner or such other Person, could be
taken by such Person.

     Section 8.4   Return of Capital

     Except pursuant to the right of redemption set forth in Section 8.6, no
Limited Partner shall be entitled to the withdrawal or return of its Capital
Contribution, except to the extent of distributions made pursuant to this
Agreement or upon termination of the Partnership as provided herein.  Except to
the extent provided by Exhibit C hereof or as otherwise expressly provided in
this Agreement, no Limited Partner or Assignee shall have priority over any
other Limited Partner or Assignee, either as to the return of Capital
Contributions or as to profits, losses or distributions.

     Section 8.5   Rights of Limited Partners Relating to the Partnership

     A.   In addition to the other rights provided by this Agreement or by the
Act, and except as limited by Section 8.5.C hereof, each Limited Partner shall
have the right, for a purpose reasonably related to such Limited Partner's
interest as a limited partner in the Partnership, upon written demand with a
statement of the purpose of such demand and at such Limited Partner's own
expense (including such copying and administrative charges as the General
Partner may establish from time to time):

                                       37
<PAGE>
 
          (1) to obtain a copy of the most recent annual and quarterly reports
              filed with the Securities and Exchange Commission by the Company
              pursuant to the Securities Exchange Act of 1934;

          (2) to obtain a copy of the Partnership's federal, state and local
              income tax returns for each Partnership Year;

          (3) to obtain a current list of the name and last known business,
              residence or mailing address of each Partner;

          (4) to obtain a copy of this Agreement and the Certificate of Limited
              Partnership and all amendments thereto, together with executed
              copies of all powers of attorney pursuant to which this Agreement,
              the Certificate of Limited Partnership and all amendments thereto
              have been executed; and

          (5) to obtain true and full information regarding the amount of cash
              and a description and statement of any other property or services
              contributed by each Partner and which each Partner has agreed to
              contribute in the future, and the date on which each became a
              Partner.

     B.   The Partnership shall notify each Limited Partner, upon request, of
the then current Conversion Factor and the REIT Shares Amount per Common Unit
and, with reasonable detail, how the same was determined.

     C.   Notwithstanding any other provision of this Section 8.5, the General
Partner may keep confidential from the Limited Partners, for such period of time
as the General Partner determines in its sole and absolute discretion to be
reasonable, any information that (i) the General Partner reasonably believes to
be in the nature of trade secrets or other information, the disclosure of which
the General Partner in good faith believes is not in the best interests of the
Partnership or could damage the Partnership or its business; or (ii) the
Partnership is required by law or by agreements with an unaffiliated third party
to keep confidential.

     Section 8.6   Redemption Right

     A.   Subject to Sections 8.6.B and 8.6.C hereof, on or after that date
which is fourteen (14) months after the Effective Date, each Limited Partner
(other than the Company) shall have the right (the "Redemption Right") to
require the Partnership to redeem on a Specified Redemption Date all or a
portion of the Common Units held by such Limited Partner at a redemption price
per Common Unit equal to and in the form of the Cash Amount to be paid by the
Partnership.  The Redemption Right shall be exercised pursuant to a Notice of
Redemption delivered to the Partnership (with a copy to the Company) by the
Limited Partner 

                                       38
<PAGE>
 
who is exercising the redemption right (the "Redeeming Partner"); provided,
however, that the Partnership shall not be obligated to satisfy such Redemption
Right if the Company elects to purchase the Common Units subject to the Notice
of Redemption pursuant to Section 8.6.B. A Limited Partner may not exercise the
Redemption Right for less than one thousand (1,000) Common Units or, if such
Limited Partner holds less than one thousand (1,000) Common Units, all of the
Common Units held by such Partner. The Redeeming Partner shall have no right,
with respect to any Common Units so redeemed, to receive any distributions paid
on or after the Specified Redemption Date. The Assignee of any Limited Partner
may exercise the rights of such Limited Partner pursuant to this Section 8.6,
and such Limited Partner shall be deemed to have assigned such rights to such
Assignee and shall be bound by the exercise of such rights by such Assignee. In
connection with any exercise of such rights by an Assignee on behalf of a
Limited Partner, the Cash Amount shall be paid by the Partnership directly to
such Assignee and not to such Limited Partner. Notwithstanding the foregoing,
with respect to those Additional Limited Partners admitted to the Partnership in
accordance with the provisions of the amendment dated as of February 1, 1998,
the Redemption Right shall be exercisable on or after that date which is 375
days after the date of their admission to the Partnership.

     B.   Notwithstanding the provisions of Section 8.6.A, upon an election by a
Limited Partner to exercise the Redemption Right, the Company may, in its sole
and absolute discretion (subject to the limitations on ownership and transfer of
REIT Shares set forth in the articles of incorporation of the Company), elect to
assume directly and satisfy a Redemption Right by paying to the Redeeming
Partner either the Cash Amount or the REIT Shares Amount, as the Company
determines in its sole and absolute discretion, whereupon the Company shall
acquire the Common Units offered for redemption by the Redeeming Partner and
shall be treated for all purposes of this Agreement as the owner of such Common
Units.  If the Company shall elect to exercise its right to purchase Common
Units under this Section 8.6.B with respect to a Notice of Redemption, it shall
so notify the Redeeming Partner within five (5) Business Days after the receipt
by it of such Notice of Redemption.  Unless the Company shall exercise its right
to purchase Common Units from the Redeeming Partner pursuant to this Section
8.6.B, the Company shall not have any obligation to the Redeeming Partner or the
Partnership with respect to the Redeeming Partner's exercise of the Redemption
Right.  In the event the Company shall exercise its right to purchase Common
Units with respect to the exercise of a Redemption Right in the manner described
in the first sentence of this Section 8.6.B, the Partnership shall have no
obligation to pay any amount to the Redeeming Partner with respect to such
Redeeming Partner's exercise of such Redemption Right, and each of the Redeeming
Partner, the Partnership, and the Company shall treat the transaction between
the Company and the Redeeming Partner, for federal income tax purposes, as a
sale of the Redeeming Partner's Common Units to the Company.  Each Redeeming
Partner agrees to execute such documents as the Company may reasonably require
in connection with the issuance of REIT Shares upon exercise of the Redemption
Right.

                                       39
<PAGE>
 
     C.   Notwithstanding the provisions of Section 8.6.A and Section 8.6.B, a
Partner shall not be entitled to exercise the Redemption Right pursuant to
Section 8.6.A if the delivery of REIT Shares to such Partner on the Specified
Redemption Date by the Company pursuant to Section 8.6.B (regardless of whether
or not the Company would in fact exercise its rights under Section 8.6.B) would
be prohibited under the Certificate of Incorporation of the Company.

     D.   In the event that the Partnership issues additional Partnership
Interests pursuant to Section 4.2.A hereof, the General Partner shall make such
revisions to this Section 8.6 as it determines are necessary to reflect the
issuance of such additional Partnership Interests.

     Section 8.7   Consent and Guarantee Rights of Certain Limited Partners

     A.   Each of the properties listed on Exhibit E hereto is referred to as a
"Designated Property."  At any time during the 10 year period following the
Effective Date, the Partnership may not sell or otherwise dispose of a
Designated Property or a Successor Designated Property (as hereinafter defined)
in a transaction that causes gain recognition under Section 752 (or any other
section) of the Code for the Consenting Partners without the consent of each of
the Consenting Partners who contributed such Designated Property.  For purposes
of this Section 8.7, the term "Successor Designated Property" means a property
acquired by the Partnership upon the disposition of a Designated Property in a
Section 1031 like kind exchange or any other exchange transaction that does not
result in gain recognition.  The provisions of this Section 8.7 shall not be
applicable with respect to any Consenting Partner if at any time such Consenting
Partner beneficially owns fewer than 30% of the number of Common Units owned by
such Consenting Partner following the closing of the initial public offering of
REIT Shares on the date hereof and the related formation transactions that
occurred simultaneously therewith.

     B.   The General Partner agrees to cause the Partnership to use its
reasonable commercial efforts to cause its lenders to permit the Consenting
Partners or either of them individually to guarantee any indebtedness of the
Partnership (including additional indebtedness or substitute indebtedness
incurred after the Effective Date) and to thereby become the guarantor or
guarantors of last resort with respect to such additional or substitute
indebtedness. Each Partner by such Partner's execution hereof agrees that the
right of each Consenting Partner under this Section 8.7.B shall include the
right (i) to become the guarantor of last resort of any indebtedness of the
Partnership guaranteed by any other Partner of the Partnership or (ii) to
increase such Consenting Partner's Recourse Debt Amount set forth on Exhibit F
hereto, without, in either case under the preceding clauses (i) and (ii) any
further action by or notice to or approval of any other Partner, provided that
such Consenting Partner has not expressly waived his right with respect to such
indebtedness.

     C.   This Section 8.7 may not be amended without the written consent of
each Consenting Partner.

                                       40
<PAGE>
 
                                   ARTICLE 9
                    BOOKS, RECORDS, ACCOUNTING AND REPORTS

     Section 9.1   Records and Accounting

     The General Partner shall keep or cause to be kept at the principal office
of the Partnership those records and documents required to be maintained by the
Act and other books and records deemed by the General Partner to be appropriate
with respect to the Partnership's business, including, without limitation, all
books and records necessary to provide to the Limited Partners any information,
lists and copies of documents required to be provided pursuant to Section 9.3
hereof.  Any records maintained by or on behalf of the Partnership in the
regular course of its business may be kept on, or be in the form of, punch
cards, magnetic tape, photographs, micrographics or any other information
storage device, provided that the records so maintained are convertible into
clearly legible written form within a reasonable period of time.  The books of
the Partnership shall be maintained, for financial and tax reporting purposes,
on an accrual basis in accordance with generally accepted accounting principles,
or such other basis as the General Partner determines to be necessary or
appropriate.

     Section 9.2   Fiscal Year

     The fiscal year of the Partnership shall be the calendar year.

     Section 9.3   Reports

     A.   As soon as practicable, but in no event later than one hundred five
(105) days after the close of each Partnership Year, the General Partner shall
cause to be mailed to each Limited Partner as of the close of the Partnership
Year, an annual report containing financial statements of the Partnership, or of
the Company if such statements are prepared solely on a consolidated basis with
the Company, for such Partnership Year, presented in accordance with generally
accepted accounting principles, such statements to be audited by a nationally
recognized firm of independent public accountants selected by the General
Partner.

     B.   As soon as practicable, but in no event later than one hundred five
(105) days after the close of each calendar quarter (except the last calendar
quarter of each year), the General Partner shall cause to be mailed to each
Limited Partner as of the last day of the calendar quarter, a report containing
unaudited financial statements of the Partnership, or of the Company, if such
statements are prepared solely on a consolidated basis with the Company, and
such other information as may be required by applicable law or regulation, or as
the General Partner determines to be appropriate.

                                       41
<PAGE>
 
                                  ARTICLE 10
                                  TAX MATTERS

     Section 10.1  Preparation of Tax Returns

     The General Partner shall arrange for the preparation and timely filing of
all returns of Partnership income, gains, deductions, losses and other items
required of the Partnership for federal and state income tax purposes and shall
use all reasonable efforts to furnish, within ninety (90) days of the close of
each taxable year, the tax information reasonably required by Limited Partners
for federal and state income tax reporting purposes.

     Section 10.2  Tax Elections

     Except as otherwise provided herein, the General Partner shall, in its sole
and absolute discretion, determine whether to make any available election
pursuant to the Code. Notwithstanding the above, in making any such tax election
the General Partner shall take into account the tax consequences to the Limited
Partners resulting from any such election.  The General Partner shall make such
tax elections on behalf of the Partnership as the Limited Partners holding a
majority of the Percentage Interests of the Limited Partners (excluding Limited
Partner Interests held by the Company) request, provided that the General
Partner believes that such election is not adverse to the interests of the
General Partner, including its interest in preserving its qualification as a
REIT under the Code.  The General Partner intends that Section 704(c)
allocations with respect to contributed property shall be made by the election
of the so-called "traditional method" with curative allocations limited solely
to allocations of gain on sale of such contributed property to the extent
allocations of depreciation deductions with respect to such contributed property
to non-contributing Partners have been limited by the so-called "ceiling rule",
as described in Regulations Section 1.704-3(c)(3)(iii)(B).  The General Partner
shall have the right to seek to revoke any tax election it makes (including,
without limitation, the election under Section 754 of the Code) upon the General
Partner's determination, in its sole and absolute discretion, that such
revocation is in the best interests of the Partners.

     Section 10.3  Tax Matters Partner

     A.   The General Partner shall be the "tax matters partner" of the
Partnership for federal income tax purposes.  Pursuant to Section 6230(e) of the
Code, upon receipt of notice from the IRS of the beginning of an administrative
proceeding with respect to the Partnership, the tax matters partner shall
furnish the IRS with the name, address, taxpayer identification number, and
profit interest of each of the Limited Partners and the Assignees; provided,
however, that such information is provided to the Partnership by the Limited
Partners and the Assignees.

     B.   The tax matters partner is authorized, but not required:

                                       42
<PAGE>
 
          (1) to enter into any settlement with the IRS with respect to any
              administrative or judicial proceedings for the adjustment of
              Partnership items required to be taken into account by a Partner
              for income tax purposes (such administrative proceedings being
              referred to as a "tax audit" and such judicial proceedings being
              referred to as "judicial review"), and in the settlement agreement
              the tax matters partner may expressly state that such agreement
              shall bind all Partners, except that such settlement agreement
              shall not bind any Partner (i) who (within the time prescribed
              pursuant to the Code and Regulations) files a statement with the
              IRS providing that the tax matters partner shall not have the
              authority to enter into a settlement agreement on behalf of such
              Partner; or (ii) who is a "notice partner" (as defined in Section
              6231(a)(8) of the Code) or a member of a "notice group" (as
              defined in Section 6223(b)(2) of the Code);

          (2) in the event that a notice of a final administrative adjustment at
              the Partnership level of any item required to be taken into
              account by a Partner for tax purposes (a "final adjustment") is
              mailed to the tax matters partner, to seek judicial review of such
              final adjustment, including the filing of a petition for
              readjustment with the Tax Court or the filing of a complaint for
              refund with the United States Claims Court or the District Court
              of the United States for the district in which the Partnership's
              principal place of business is located;

          (3) to intervene in any action brought by any other Partner for
              judicial review of a final adjustment;

          (4) to file a request for an administrative adjustment with the IRS
              and, if any part of such request is not allowed by the IRS, to
              file an appropriate pleading (petition or complaint) for judicial
              review with respect to such request;

          (5) to enter into an agreement with the IRS to extend the period for
              assessing any tax which is attributable to any item required to be
              taken account of by a Partner for tax purposes, or an item
              affected by such item; and

          (6) to take any other action on behalf of the Partners or the
              Partnership in connection with any tax audit or judicial review
              proceeding to the extent permitted by applicable law or
              regulations.

     The taking of any action and the incurring of any expense by the tax
matters partner in connection with any such proceeding, except to the extent
required by law, is a matter in the sole and absolute discretion of the tax
matters partner and the provisions relating to 

                                       43
<PAGE>
 
indemnification of the General Partner set forth in Section 7.7 of this
Agreement shall be fully applicable to the tax matters partner in its capacity
as such.

     C.   The tax matters partner shall receive no compensation for its
services.  All third party costs and expenses incurred by the tax matters
partner in performing its duties as such (including legal and accounting fees
and expenses) shall be borne by the Partnership.  Nothing herein shall be
construed to restrict the Partnership from engaging an accounting firm to assist
the tax matters partner in discharging its duties hereunder, so long as the
compensation paid by the Partnership for such services is reasonable.

     Section 10.4  Organizational Expenses

     The Partnership shall elect to deduct expenses, if any, incurred by it in
organizing the Partnership ratably over a sixty (60) month period as provided in
Section 709 of the Code.

     Section 10.5  Withholding

     Each Limited Partner hereby authorizes the Partnership to withhold from, or
pay on behalf of or with respect to, such Limited Partner any amount of federal,
state, local, or foreign taxes that the General Partner determines that the
Partnership is required to withhold or pay with respect to any amount
distributable or allocable to such Limited Partner pursuant to this Agreement,
including, without limitation, any taxes required to be withheld or paid by the
Partnership pursuant to Sections 1441, 1442, 1445, or 1446 of the Code.  Any
amount paid on behalf of or with respect to a Limited Partner shall constitute a
loan by the Partnership to such Limited Partner, which loan shall be repaid by
such Limited Partner within fifteen (15) days after notice from the General
Partner that such payment must be made unless (i) the Partnership withholds such
payment from a distribution which would otherwise be made to the Limited
Partner; or (ii) the General Partner determines, in its sole and absolute
discretion, that such payment may be satisfied out of the available funds of the
Partnership which would, but for such payment, be distributed to the Limited
Partner.  Any amounts withheld pursuant to the foregoing clauses (i) or (ii)
shall be treated as having been distributed to such Limited Partner. Each
Limited Partner hereby unconditionally and irrevocably grants to the Partnership
a security interest in such Limited Partner's Partnership Interest to secure
such Limited Partner's obligation to pay to the Partnership any amounts required
to be paid pursuant to this Section 10.5.  In the event that a Limited Partner
fails to pay any amounts owed to the Partnership pursuant to this Section 10.5
when due, the General Partner may, in its sole and absolute discretion, elect to
make the payment to the Partnership on behalf of such defaulting Limited
Partner, and in such event shall be deemed to have loaned such amount to such
defaulting Limited Partner and shall succeed to all rights and remedies of the
Partnership as against such defaulting Limited Partner.  Without limitation, in
such event the General Partner shall have the right to receive distributions
that would otherwise be distributable to such defaulting Limited Partner until
such time as such loan, together with all interest thereon, has been paid in
full, and any such distributions so received by the General Partner shall be
treated as having 

                                       44
<PAGE>
 
been distributed to the defaulting Limited Partner and immediately paid by the
defaulting Limited Partner to the General Partner in repayment of such loan. Any
amounts payable by a Limited Partner hereunder shall bear interest at the lesser
of (A) the base rate on corporate loans at large United States money center
commercial banks, as published from time to time in The Wall Street Journal,
plus four (4) percentage points, or (B) the maximum lawful rate of interest on
such obligation, such interest to accrue from the date such amount is due (i.e.,
fifteen (15) days after demand) until such amount is paid in full. Each Limited
Partner shall take such actions as the Partnership or the General Partner shall
request in order to perfect or enforce the security interest created hereunder.


                                  ARTICLE 11
                           TRANSFERS AND WITHDRAWALS

     Section 11.1  Transfer

     A.   The term "transfer," when used in this Article 11 with respect to a
Partnership Unit, shall be deemed to refer to a transaction by which the General
Partner purports to assign all or any part of its General Partner Interest to
another Person or by which a Limited Partner purports to assign all or any part
of its Limited Partner Interest to another Person, and includes a sale,
assignment, gift, pledge (except for a pledge in which the pledgee agrees not to
foreclose with respect to such Partnership Unit until after the first
anniversary of the initial public offering of the Company), encumbrance,
hypothecation, mortgage, exchange or any other disposition by operation of law
or otherwise.  The term "transfer" when used in this Article 11 does not include
any redemption of Partnership Interests by the Partnership from a Limited
Partner or any acquisition of Partnership Units from a Limited Partner by the
Company pursuant to Section 8.6.  No part of the interest of a Limited Partner
shall be subject to the claims of any creditor, any spouse for alimony or
support, or to legal process, and may not be voluntarily or involuntarily
alienated or encumbered except as may be specifically provided for in this
Agreement or consented to by the General Partner.

     B.   No Partnership Interest shall be transferred, in whole or in part,
except in accordance with the terms and conditions set forth in this Article 11.
Any transfer or purported transfer of a Partnership Interest not made in
accordance with this Article 11 shall be null and void.

     Section 11.2  Transfer of the Company's General Partner Interest and
                   Limited Partner Interest; Extraordinary Transactions

     A.   The Company may not transfer any of its General Partner Interest or
withdraw as General Partner, or transfer any of its Limited Partner Interest, or
engage in an Extraordinary Transaction, except, in any such case, (i) if such
Extraordinary Transaction is, or such transfer or withdrawal is pursuant to an
Extraordinary Transaction that is, permitted 

                                       45
<PAGE>
 
under Section 11.2(B) or (ii) if Limited Partners holding at least three-fourths
of the Percentage Interests of the Limited Partners (other than Limited Partner
Interests held by the Company or its Affiliates) consent to such transfer or
withdrawal or Extraordinary Transaction, or (iii) if such transfer is to an
entity that is wholly-owned by the Company and is a Qualified REIT Subsidiary
under Section 856(i) of the Code.

     B.   The General Partner is permitted to engage in the following
Extraordinary Transactions without the approval or vote of the Limited Partners
except as provided in Section 11.2(C):

          (i)  an Extraordinary Transaction in connection with which all Limited
               Partners either will receive, or will have the right to elect to
               receive, for each Common Unit an amount of cash, securities, or
               other property equal to the product of the REIT Shares Amount and
               the greatest amount of cash, securities or other property paid to
               a holder of one REIT Share in consideration of one REIT Share
               pursuant to the terms of the Extraordinary Transaction; provided
               that, if, in connection with the Extraordinary Transaction, a
               purchase, tender or exchange offer shall have been made to and
               accepted by the holders of the outstanding REIT Shares, each
               holder of Common Units shall receive, or shall have the right to
               elect to receive, the greatest amount of cash, securities, or
               other property which such holder would have received had it
               exercised its right to Redemption (as set forth in Section 8.6)
               and received REIT Shares in exchange for its Common Units
               immediately prior to the expiration of such purchase, tender or
               exchange offer and had thereupon accepted such purchase, tender
               or exchange offer and then such Extraordinary Transaction shall
               have been consummated; and

          (ii) a merger, or other combination of assets, with another entity if:
               (w) immediately after such Extraordinary Transaction,
               substantially all of the assets directly or indirectly owned by
               the surviving entity, other than Common Units held by such
               General Partner, are owned directly or indirectly by the
               Partnership or another limited partnership or limited liability
               company which is the survivor of a merger, consolidation or
               combination of assets with the Partnership (in each case, the
               "Surviving Partnership"); (x) the Common Unitholders own a
               percentage interest of the Surviving Partnership based on the
               relative fair market value of the net assets of the Partnership
               (as determined pursuant to Section 11.2.E) and the other net
               assets of the Surviving Partnership (as determined pursuant to
               Section 11.2.E) immediately prior to the consummation of such
               transaction; (y) the rights, preferences and privileges of the
               Common Unitholders in the Surviving Partnership are at least as
               favorable as those in effect immediately prior to the
               consummation of 

                                       46
<PAGE>
 
               such transaction and as those applicable to any other limited
               partners or non-managing members of the Surviving Partnership
               (who have, in either case, the rights of a "common" equity
               holder); and (z) such rights of the Common Unitholders include
               the right to exchange their Common Unit equivalent interests in
               the Surviving Partnership for at least one of: (a) the
               consideration available to such Common Unitholders pursuant to
               Section 11.2.B(i) or (b) if the ultimate controlling person of
               the Surviving Partnership has publicly traded common equity
               securities, such common equity securities, with an exchange ratio
               based on the relative fair market value of such securities (as
               determined pursuant to Section 11.2.E) and the REIT Shares.

     C.   The General Partner shall not consummate any Extraordinary Transaction
in connection with which it conducted a vote of its common stockholders (a
"Stockholder Vote") unless the General Partner also conducts a vote of the
Common Unitholders (the "Partnership Vote") in which (i) the General Partner
provides the Common Unitholders with advance notice equal in time to the advance
notice given in the case of the Stockholder Vote, (ii) in connection with such
advance notice the General Partner provides the Common Unitholders with written
materials describing the proposed Extraordinary Transaction as well as the tax
effect of the consummation thereof on the Limited Partners, (iii) in such vote
of the Partners, the General Partner votes all Common Units (General and
Limited) held by it in proportion to the manner in which all outstanding shares
of common stock of the General Partner were voted at the Stockholder Meeting
(such votes to be "For," "Against," "Abstain" and "Not Present"), and (iv) the
total votes of the General and Limited Partners in respect of their Common Units
voted "For," "Against," "Abstain" and "Not Present" would be sufficient
(measured in percentage terms), if such vote were a vote by the Company of its
stockholders, to approve the Extraordinary Transaction. For purposes of the
Partnership Vote, each holder of a Common Unit shall be entitled to a number of
votes equal to the total votes such holder would have been entitled to at the
Stockholder Meeting had such holder presented its Common Unit for redemption and
such Common Unit had been acquired by the Company for the REIT Shares Amount of
REIT Shares prior to the record date therefor.

     D.   Without in any way limiting the exculpation from liability set forth
in Section 7.1.D and 7.8.B, in connection with any transaction permitted by
Section 11.2.B or Section 11.2.C hereof, the General Partner shall use its
commercially reasonable efforts to structure such Extraordinary Transaction to
avoid causing the Limited Partners to recognize gain for federal income tax
purposes by virtue of the occurrence of or their participation in such
Extraordinary Transaction.

     E.   In connection with any transaction permitted by Section 11.2.B or
11.2.C, the relative fair market values shall be reasonably determined by the
General Partner as of the time of such transaction and, to the extent
applicable, shall be no less favorable to the Limited Partners than the relative
values reflected in the terms of such transaction.

                                       47
<PAGE>
 
     Section 11.3  Limited Partners' Rights to Transfer

     A.   Subject to the provisions of Sections 11.3.C, 11.3.D, 11.3.E, and
11.4, a Limited Partner (other than the Company) may transfer, with or without
the consent of the General Partner, all or any portion of its Partnership
Interest, or any of such Limited Partner's economic rights as a Limited Partner.

     B.   If a Limited Partner is subject to Incapacity, the executor,
administrator, trustee, committee, guardian, conservator or receiver of such
Limited Partner's estate shall have all of the rights of a Limited Partner, but
not more rights than those enjoyed by other Limited Partners, for the purpose of
settling or managing the estate and such power as the Incapacitated Limited
Partner possessed to transfer all or any part of his or its interest in the
Partnership. The Incapacity of a Limited Partner, in and of itself, shall not
dissolve or terminate the Partnership.

     C.   The General Partner may prohibit any transfer by a Limited Partner of
its Partnership Units if, in the opinion of legal counsel to the Partnership,
such transfer would require filing of a registration statement under the
Securities Act of 1933 or would otherwise violate any federal or state
securities laws or regulations applicable to the Partnership or the Partnership
Units.

     D.   No transfer by a Limited Partner of its Partnership Units may be made
to any Person if (i) in the opinion of legal counsel for the Partnership, it
would result in the Partnership being treated as an association taxable as a
corporation; (ii) it is made within one year after the consummation of the
initial public offering of the Company; (iii) such transfer is effectuated
through an "established securities market" or a "secondary market (or the
substantial equivalent thereof)" with the meaning of Section 7704 of the Code;
(iv) such transfer would cause the Partnership to become, with respect to any
employee benefit plan subject to Title I of ERISA, a "party-in-interest" (as
defined in Section 3(14) of ERISA) or a "disqualified person" (as defined in
Section 4975(c) of the Code); (v) such transfer would, in the opinion of legal
counsel for the Partnership, cause any portion of the assets of the Partnership
to constitute assets of any employee benefit plan pursuant to Department of
Labor Regulations Section 2510.2-101; or (vi) such transfer would subject the
Partnership to be regulated under the Investment Company Act of 1940, the
Investment Advisors Act of 1940 or the Employee Retirement Income Security Act
of 1974, each as amended.

     E.   No transfer of any Partnership Units may be made to a lender to the
Partnership or any Person who is related (within the meaning of Section 1.752-
4(b) of the Regulations) to any lender to the Partnership whose loan constitutes
a Nonrecourse Liability, without the consent of the General Partner, in its sole
and absolute discretion; provided that as a condition to such consent the lender
will be required to enter into an arrangement with the Partnership and the
General Partner to redeem for the Cash Amount any Partnership Units in which a

                                       48
<PAGE>
 
security interest is held simultaneously with the time at which such lender
would be deemed to be a partner in the Partnership for purposes of allocating
liabilities to such lender under Section 752 of the Code.

     Section 11.4  Substituted Limited Partners

     A.   No Limited Partner shall have the right to substitute a transferee as
a Limited Partner in his place. The General Partner shall, however, have the
right to consent to the admission of a transferee of the interest of a Limited
Partner pursuant to this Section 11.4 as a Substituted Limited Partner, which
consent may be given or withheld by the General Partner in its sole and absolute
discretion. The General Partner's failure or refusal to permit a transferee of
any such interests to become a Substituted Limited Partner shall not give rise
to any cause of action against the Partnership or any Partner.

     B.   A transferee who has been admitted as a Substituted Limited Partner in
accordance with this Article 11 shall have all the rights and powers and be
subject to all the restrictions and liabilities of a Limited Partner under this
Agreement.

     C.   Upon the admission of a Substituted Limited Partner, the General
Partner shall amend Exhibit A to reflect the name, address, number of
Partnership Units, and Percentage Interest of such Substituted Limited Partner
and to eliminate or adjust, if necessary, the name, address and interest of the
predecessor of such Substituted Limited Partner.

     Section 11.5  Assignees

     If the General Partner, in its sole and absolute discretion, does not
consent to the admission of any permitted transferee as a Substituted Limited
Partner, as described in Section 11.4, such transferee shall be considered an
Assignee for purposes of this Agreement. An Assignee shall be deemed to have had
assigned to it, and shall be entitled to receive distributions from the
Partnership and the share of Net Income, Net Losses, Recapture Income, and any
other items, gain, loss deduction and credit of the Partnership attributable to
the Partnership Units assigned to such transferee, but except as otherwise
provided in Section 8.6.A hereof shall not be deemed to be a holder of
Partnership Units for any other purpose under this Agreement, and shall not be
entitled to vote such Partnership Units in any matter presented to the Limited
Partners for a vote (such Partnership Units being deemed to have been voted on
such matter in the same proportion as all other Partnership Units held by
Limited Partners are voted). In the event any such transferee desires to make a
further assignment of any such Partnership Units, such transferee shall be
subject to all of the provisions of this Article 11 to the same extent and in
the same manner as any Limited Partner desiring to make an assignment of
Partnership Units.

                                       49
<PAGE>
 
     Section 11.6  General Provisions

     A.   No Limited Partner may withdraw from the Partnership other than as a
result of a permitted transfer of all of such Limited Partner's Partnership
Units in accordance with this Article 11 or pursuant to redemption of all of its
Partnership Units under Section 8.6.

     B.   Any Limited Partner who shall transfer all of its Partnership Units in
a transfer permitted pursuant to this Article 11 shall cease to be a Limited
Partner upon the admission of all Assignees of such Partnership Units as
Substitute Limited Partners. Similarly, any Limited Partner who shall transfer
all of its Partnership Units pursuant to a redemption of all of its Partnership
Units under Section 8.6 shall cease to be a Limited Partner.

     C.   Transfers pursuant to this Article 11 may only be made on the first
day of a fiscal quarter of the Partnership, unless the General Partner otherwise
agrees.

     D.   If any Partnership Interest is transferred or assigned during any
quarterly segment of the Partnership's fiscal year in compliance with the
provisions of this Article 11 or redeemed or transferred pursuant to Section 8.6
on any day other than the first day of a Partnership Year, then Net Income, Net
Losses, each item thereof and all other items attributable to such interest for
such Partnership Year shall be divided and allocated between the transferor
Partner and the transferee Partner by taking into account their varying
interests during the Partnership Year in accordance with Section 706(d) of the
Code, using the interim closing of the books method.  Solely for purposes of
making such allocations, each of such items for the calendar month in which the
transfer or assignment occurs shall be allocated to the transferee Partner, and
none of such items for the calendar month in which a redemption occurs shall be
allocated to the Redeeming Partner; provided, however, that the General Partner
may adopt such other conventions relating to allocations in connection with
transfers, assignments or redemptions as it determines are necessary or
appropriate. All distributions of Available Cash attributable to such
Partnership Unit with respect to which the Partnership Record Date is before the
date of such transfer, assignment, or redemption shall be made to the transferor
Partner or the Redeeming Partner, as the case may be, and in the case of a
transfer or assignment other than a redemption, all distributions of Available
Cash thereafter attributable to such Partnership Unit shall be made to the
transferee Partner.


                                  ARTICLE 12
                             ADMISSION OF PARTNERS

     Section 12.1  Admission of Successor General Partner

     A successor to all of the General Partner Interest pursuant to Section 11.2
hereof who is proposed to be admitted as a successor General Partner shall be
admitted to the Partnership as the General Partner, effective upon such
transfer. Any such transferee shall carry on the

                                       50
<PAGE>
 
business of the Partnership without dissolution. In each case, the admission
shall be subject to the successor General Partner executing and delivering to
the Partnership an acceptance of all of the terms and conditions of this
Agreement and such other documents or instruments as may be required to effect
the admission. In the case of such admission on any day other than the first day
of a Partnership Year, all items attributable to the General Partner Interest
for such Partnership Year shall be allocated between the transferring General
Partner and such successor as provided in Section 11.6.D hereof.

     Section 12.2  Admission of Additional Limited Partners

     A.   After the admission to the Partnership of the initial Limited Partners
on the date hereof, a Person who makes a Capital Contribution to the Partnership
in accordance with this Agreement shall be admitted to the Partnership as an
Additional Limited Partner only upon furnishing to the General Partner (i)
evidence of acceptance in form satisfactory to the General Partner of all of the
terms and conditions of this Agreement, including, without limitation, the power
of attorney granted in Section 2.4 hereof and (ii) such other documents or
instruments as may be required in the discretion of the General Partner in order
to effect such Person's admission as an Additional Limited Partner.

     B.   Notwithstanding anything to the contrary in this Section 12.2, no
Person shall be admitted as an Additional Limited Partner without the consent of
the General Partner, which consent may be given or withheld in the General
Partner's sole and absolute discretion. The admission of any Person as an
Additional Limited Partner shall become effective on the date upon which the
name of such Person is recorded on the books and records of the Partnership,
following the consent of the General Partner to such admission.

     C.   If any Additional Limited Partner is admitted to the Partnership on
any day other than the first day of a Partnership Year, then Net Income, Net
Losses, each item thereof and all other items allocable among Partners and
Assignees for such Partnership Year shall be allocated among such Additional
Limited Partner and all other Partners and Assignees by taking into account
their varying interests during the Partnership Year in accordance with Section
706(d) of the Code, using any convention permitted by law and selected by the
General Partner. Solely for purposes of making such allocations, each such item
for the calendar month in which an admission of any Additional Limited Partner
occurs shall be allocated among all of the Partners and Assignees, including
such Additional Limited Partner; provided, however, that the General Partner may
adopt such other conventions relating to allocations to Additional Limited
Partners as it determines are necessary or appropriate. All distributions of
Available Cash with respect to which the Partnership Record Date is before the
date of such admission shall be made solely to Partners and Assignees, other
than the Additional Limited Partner, and all distributions of Available Cash
thereafter shall be made to all of the Partners and Assignees, including such
Additional Limited Partner.

                                       51
<PAGE>
 
     Section 12.3  Amendment of Agreement and Certificate of Limited
Partnership

     For the admission to the Partnership of any Partner, the General Partner
shall take all steps necessary and appropriate under the Act to amend the
records of the Partnership and, if necessary, to prepare as soon as practical an
amendment of this Agreement (including an amendment of Exhibit A) and, if
required by law, shall prepare and file an amendment to the Certificate of
Limited Partnership and may for this purpose exercise the power of attorney
granted pursuant to Section 2.4 hereof.


                                  ARTICLE 13
                   DISSOLUTION, LIQUIDATION AND TERMINATION

     Section 13.1  Dissolution

     The Partnership shall not be dissolved by the admission of Substituted
Limited Partners or Additional Limited Partners or by the admission of a
successor General Partner in accordance with the terms of this Agreement. Upon
the withdrawal of the General Partner, any successor General Partner shall
continue the business of the Partnership. The Partnership shall dissolve, and
its affairs shall be wound up, only upon the first to occur of any of the
following ("Liquidating Events"):

     A.   the expiration of its term as provided in Section 2.5 hereof;

     B.   an event of withdrawal of the General Partner, as defined in the Act
(other than an event of bankruptcy), unless, within ninety (90) days after such
event of withdrawal a majority in interest of the remaining Partners agree in
writing to continue the business of the Partnership and to the appointment,
effective as of the date of withdrawal, of a successor General Partner;

     C.   from and after the date of this Agreement through December 31, 2055,
an election to dissolve the Partnership made by the General Partner with the
Consent of Partners holding eighty-five percent (85%) of the Percentage
Interests of the Limited Partners (including Limited Partner Interests held by
the Company);

     D.   on or after January 1, 2056, an election to dissolve the Partnership
made by the General Partner, in its sole and absolute discretion;

     E.   entry of a decree of judicial dissolution of the Partnership pursuant
to the provisions of the Act;

     F.   the sale of all or substantially all of the assets and properties of
the Partnership; or

                                       52
<PAGE>
 
     G.   a final and non-appealable judgment is entered by a court of competent
jurisdiction ruling that the General Partner is bankrupt or insolvent, or a
final and non-appealable order for relief is entered by a court with appropriate
jurisdiction against the General Partner, in each case under any federal or
state bankruptcy or insolvency laws as now or hereafter in effect, unless prior
to the entry of such order or judgment all of the remaining Partners agree in
writing to continue the business of the Partnership and to the appointment,
effective as of a date prior to the date of such order or judgment, of a
substitute General Partner.

     Section 13.2  Winding Up

     A.   Upon the occurrence of a Liquidating Event, the Partnership shall
continue solely for the purposes of winding up its affairs in an orderly manner,
liquidating its assets, and satisfying the claims of its creditors and Partners.
No Partner shall take any action that is inconsistent with, or not necessary to
or appropriate for, the winding up of the Partnership's business and affairs.
The General Partner, or, in the event there is no remaining General Partner, any
Person elected by a majority in interest of the Limited Partners (the General
Partner or such other Person being referred to herein as the "Liquidator"),
shall be responsible for overseeing the winding up and dissolution of the
Partnership and shall take full account of the Partnership's liabilities and
property and the Partnership property shall be liquidated as promptly as is
consistent with obtaining the fair value thereof, and the proceeds therefrom
(which may, to the extent determined by the General Partner, include shares of
common stock in the Company) shall be applied and distributed in the following
order:

          (1)  First, to the payment and discharge of all of the Partnership's
               debts and liabilities to creditors other than the Partners;

          (2)  Second, to the payment and discharge of all of the Partnership's
               debts and liabilities to the General Partner;

          (3)  Third, to the payment and discharge of all of the Partnership's
               debts and liabilities to the other Partners; and

          (4)  The balance, if any, to the General Partner and Limited Partners
               in accordance with their Capital Accounts, after giving effect to
               all contributions, distributions, and allocations for all
               periods.

The General Partner shall not receive any additional compensation for any
services performed pursuant to this Article 13.

     B.   Notwithstanding the provisions of Section 13.2.A hereof which require
liquidation of the assets of the Partnership, but subject to the order of
priorities set forth therein, if prior to or upon dissolution of the Partnership
the Liquidator determines that an 

                                       53
<PAGE>
 
immediate sale of part or all of the Partnership's assets would be impractical
or would cause undue loss to the Partners, the Liquidator may, in its sole and
absolute discretion, defer for a reasonable time the liquidation of any assets
except those necessary to satisfy liabilities of the Partnership (including to
those Partners as creditors) and/or distribute to the Partners, in lieu of cash,
as tenants in common and in accordance with the provisions of Section 13.2.A
hereof, undivided interests in such Partnership assets as the Liquidator deems
not suitable for liquidation. Any such distributions in kind shall be made only
if, in the good faith judgment of the Liquidator, such distributions in kind are
in the best interest of the Partners, and shall be subject to such conditions
relating to the disposition and management of such properties as the Liquidator
deems reasonable and equitable and to any agreements governing the operation of
such properties at such time. The Liquidator shall determine the fair market
value of any property distributed in kind using such reasonable method of
valuation as it may adopt.

     C.   In the discretion of the Liquidator, a pro rata portion of the
distributions that would otherwise be made to the General Partner and Limited
Partners pursuant to this Article 13 may be:

          (1)  distributed to a trust established for the benefit of the General
               Partner and Limited Partners for the purposes of liquidating
               Partnership assets, collecting amounts owed to the Partnership,
               and paying any contingent or unforeseen liabilities or
               obligations of the Partnership or the General Partner arising out
               of or in connection with the Partnership. The assets of any such
               trust shall be distributed to the General Partner and Limited
               Partners from time to time, in the reasonable discretion of the
               Liquidator, in the same proportions as the amount distributed to
               such trust by the Partnership would otherwise have been
               distributed to the General Partner and Limited Partners pursuant
               to this Agreement; or

          (2)  withheld or escrowed to provide a reasonable reserve for
               Partnership liabilities (contingent or otherwise) and to reflect
               the unrealized portion of any installment obligations owed to the
               Partnership, provided that such withheld or escrowed amounts
               shall be distributed to the General Partner and Limited Partners
               in the manner and order of priority set forth in Section 13.2.A
               as soon as practicable.

     Section 13.3  Compliance with Timing Requirements of Regulations

     In the event the Partnership is "liquidated" within the meaning of
Regulations Section 1.704-1(b)(2)(ii)(g), distributions shall be made pursuant
to this Article 13 to the General Partner and Limited Partners who have positive
Capital Accounts in compliance with Regulations Section 1.704-1(b)(2)(ii)(b)(2).

                                       54
<PAGE>
 
     If at such time as the Partnership (or the General Partner's interest
therein) is "liquidated" within the meaning of Treasury Regulations Section
1.704-1(b)(2)(ii)(g), the General Partner has a deficit balance in his Capital
Account (after giving effect to all contributions, distributions and allocations
for all Fiscal Years or portions thereof, including the year during which such
liquidation occurs, the General Partner shall contribute to the capital of the
Partnership the amount necessary to restore such deficit balance to zero in
compliance with Treasury Regulations Section 1.704-1(b)(2)(ii)(b)(3)). If at
such time as the Partnership (or any Limited Partner's interest therein) is
"liquidated" within the meaning of Treasury Regulations Section 1.704-
1(b)(2)(ii)(g) any Limited Partner has a deficit balance in its Capital Account
(after giving effect to all contributions, distributions and allocations for all
Fiscal Years or portions thereof, including the year during which such
liquidation occurs), each such Limited Partner shall be obligated to contribute
cash to the capital of the Partnership in an amount equal to the lesser of (i)
the amount required to increase its Capital Account as of such date to zero
determined after applying the provisions of Treasury Regulations Section 1.704-
1(b)(2)(iv)(f) so as to adjust (for this purpose) each such Partner's Capital
Account balance for the full amount of such Partner's unrealized gains and
losses on a fair market value basis (provided however, such adjustment shall be
made without regard to any value that may be deemed to exist with respect to any
redemption rights under Section 8.6) or (ii) such Limited Partner's Limited
Partner Recourse Debt Percentage multiplied by the Recourse Debt Amount. Any
such contribution required of a Partner hereunder shall be made on or before the
later of (i) the end of the Partnership Year in which the interest of such
Partner is liquidated or (ii) the ninetieth (90th) day following the date of
such liquidation. Notwithstanding any provision hereof to the contrary, all
amounts so contributed by a Limited Partner to the capital of the Partnership
shall, upon the liquidation of the Partnership under Article XIII, be paid only
to any then creditors of the Partnership, including Partners that are
Partnership creditors (in the order provided in Section 13.2 hereof), and shall
not be distributed to the other Partners then having positive balances in their
respective Capital Accounts.

     After the death of a Limited Partner, the executor of the estate of such
Limited Partner may elect to reduce (or eliminate) the deficit Capital Account
restoration obligation of such Limited Partner pursuant to this Section 13.3.
Such election may be made by such executor by delivering to the General Partner
within two hundred seventy (270) days of the death of such Limited Partner a
written notice setting forth the maximum deficit balance in his Capital Account
that such executor agrees to restore under Section 13.3, if any. If such
executor does not make a timely election pursuant to this Section 13.3 (whether
or not the balance in his Capital Account is negative at such time), then such
Limited Partner's estate (and the beneficiaries thereof who receive distribution
of Partnership Interests therefrom) shall be deemed to have a deficit Capital
Account restoration obligation as set forth pursuant to the terms of Section
13.3. Any Limited Partner which is itself a partnership may likewise elect,
after the death of its respective partner, to reduce (or eliminate) its deficit
Capital Account restoration obligation pursuant to Section 13.3 by delivering a
similar written notice to the General Partner within the time period specified
herein. Any such partnership that does not 

                                       55
<PAGE>
 
make any such timely election shall similarly be deemed to have a deficit
Capital Account restoration obligation as set forth pursuant to the terms of
Section 13.3.

     Section 13.4  Deemed Termination

     Notwithstanding any other provision of this Article 13, in the event the
Partnership is considered "liquidated" within the meaning of Regulations Section
1.704-1(b)(2)(ii)(g), but no Liquidating Event has occurred, the Partnership's
property shall not be liquidated, the Partnership's liabilities shall not be
paid or discharged, and the Partnership's affairs shall not be wound up.
Instead, for federal income tax purposes and for purposes of maintaining Capital
Accounts pursuant to Exhibit B hereto, the Partnership shall be deemed to have
(i) contributed the Partnership property in kind to a new partnership (the "New
Partnership"), which shall be deemed to have assumed and taken such property
subject to all Partnership liabilities in exchange for all of the interests in
such New Partnership, and (ii) distributed such interests to the Partners
pursuant to the provisions of this Agreement in liquidation of the Partnership,
subsequent to which the New Partnership shall be referred to as the Partnership
for all purposes of this Agreement.

     Section 13.5  Rights of Limited Partners

     Except as otherwise provided in this Agreement, each Limited Partner shall
look solely to the assets of the Partnership for the return of its Capital
Contributions and shall have no right or power to demand or receive property
other than cash from the Partnership. Except as otherwise provided in this
Agreement, no Limited Partner shall have priority over any other Partner as to
the return of its Capital Contributions, distributions, or allocations.

     Section 13.6  Notice of Dissolution

     In the event a Liquidating Event occurs or an event occurs that would, but
for the provisions of an election or objection by one or more Partners pursuant
to Section 13.1, result in a dissolution of the Partnership, the General Partner
shall, within thirty (30) days thereafter, provide written notice thereof to
each of the Partners.

     Section 13.7  Termination of Partnership and Cancellation of Certificate
                   of Limited Partnership

     Upon the completion of the liquidation of the Partnership's assets, as
provided in Section 13.2 hereof, the Partnership shall be terminated, a
certificate of cancellation shall be filed, and all qualifications of the
Partnership as a foreign limited partnership in jurisdictions other than the
State of Delaware shall be canceled and such other actions as may be necessary
to terminate the Partnership shall be taken.

                                       56
<PAGE>
 
     Section 13.8  Reasonable Time for Winding-Up

     A reasonable time shall be allowed for the orderly winding-up of the
business and affairs of the Partnership and the liquidation of its assets
pursuant to Section 13.2 hereof, in order to minimize any losses otherwise
attendant upon such winding-up, and the provisions of this Agreement shall
remain in effect between the Partners during the period of liquidation.

     Section 13.9  Waiver of Partition

     Each Partner hereby waives any right to partition of the Partnership
property.


                                  ARTICLE 14
                 AMENDMENT OF PARTNERSHIP AGREEMENT; MEETINGS

     Section 14.1  Amendments

     A.   Amendments to this Agreement may be proposed by the General Partner or
by any Limited Partners (other than the Company) holding twenty percent (20%) or
more of the Common Units. Following such proposal, the General Partner shall
submit any proposed amendment to the Limited Partners. The General Partner shall
seek the written vote of the Partners on the proposed amendment or shall call a
meeting to vote thereon and to transact any other business that it may deem
appropriate. For purposes of obtaining a written vote, the General Partner may
require a response within a reasonable specified time, but not less than fifteen
(15) days, and failure to respond in such time period shall constitute a vote
which is consistent with the General Partner's recommendation with respect to
the proposal. Except as provided in Section 13.1.C, 14.1.B, 14.1.C or 14.1.D, a
proposed amendment shall be adopted and be effective as an amendment hereto if
it is approved by the General Partner and it receives the Consent of Limited
Partners holding a majority of the Common Units held by Limited Partners
(including Limited Partner Common Units held by the Company); provided, that, an
action shall become effective at such time as the requisite consents are
received even if prior to such specified time.

     B.   Notwithstanding Section 14.1.A, the General Partner shall have the
power, without the consent of the Limited Partners, to amend this Agreement as
may be required to facilitate or implement any of the following purposes:

          (1)  to add to the obligations of the General Partner or surrender any
               right or power granted to the General Partner or any Affiliate of
               the General Partner for the benefit of the Limited Partners;

          (2)  to reflect the admission, substitution, termination, or
               withdrawal of Partners in accordance with this Agreement;

                                       57
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          (3)  to set forth and reflect in the Agreement the designations,
               rights, powers, duties, and preferences of the holders of any
               additional Partnership Interests issued pursuant to Section 4.2.A
               hereof;

          (4)  to reflect a change that is of an inconsequential nature and does
               not adversely affect the Limited Partners in any material
               respect, or to cure any ambiguity, correct or supplement any
               provision in this Agreement not inconsistent with law or with
               other provisions, or make other changes with respect to matters
               arising under this Agreement that will not be inconsistent with
               law or with the provisions of this Agreement; and

          (5)  to satisfy any requirements, conditions, or guidelines contained
               in any order, directive, opinion, ruling or regulation of a
               federal or state agency or contained in federal or state law.

The General Partner shall provide notice to the Limited Partners when any action
under this Section 14.1.B is taken.

     C.   Notwithstanding Section 14.1.A and 14.1.B hereof, this Agreement shall
not be amended without the Consent of each Partner adversely affected if such
amendment would (i) convert a Limited Partner's interest in the Partnership into
a General Partner Interest; (ii) modify the limited liability of a Limited
Partner in a manner adverse to such Limited Partner; (iii) alter rights of the
Partner (other than as a result of the issuance of Partnership Interests) to
receive distributions pursuant to Article 5 or Article 13 or the allocations
specified in Article 6 (except as permitted pursuant to Section 4.2 and Section
14.1.B(3) hereof); (iv) alter or modify the Redemption Right and REIT Shares
Amount as set forth in Sections 8.6 and 11.2.B, and the related definitions, in
a manner adverse to such Partner; (v) cause the termination of the Partnership
prior to the time set forth in Sections 2.5 or 13.1; or (vi) amend this Section
14.1.C.  Further, no amendment may alter the restrictions on the General
Partner's authority set forth in Section 7.3.B without the Consent specified in
that section.  In addition, Section 8.7 may only be amended as provided therein.

     D.   Notwithstanding Section 14.1.A or Section 14.1.B hereof, the General
Partner shall not (except in connection with amendments made to reflect the
issuance of additional Partnership Interests and the relative rights, powers and
duties incident thereto) amend Sections 4.2.A, 7.5, 7.6, 11.2 or 14.2 without
the Consent of Limited Partners holding a majority of the Common Units held by
Limited Partners, excluding Limited Partner Common Units held by the General
Partner or its Affiliates.

                                       58
<PAGE>
 
     Section 14.2  Meetings of the Partners

     A.   Meetings of the Partners may be called by the General Partner and
shall be called upon the receipt by the General Partner of a written request by
Limited Partners (other than the Company) holding twenty percent (20%) or more
of the Common Units. The request shall state the nature of the business to be
transacted.  Notice of any such meeting shall be given to all Partners not less
than seven (7) days nor more than thirty (30) days prior to the date of such
meeting.  Partners may vote in person or by proxy at such meeting. Whenever the
vote or Consent of the Partners is permitted or required under this Agreement,
such vote or Consent may be given at a meeting of the Partners or may be given
in accordance with the procedure prescribed in Section 14.1.A hereof. Except as
otherwise expressly provided in this Agreement, the Consent of holders of a
majority of the Common Units held by Limited Partners (including Limited
Partnership Common Units held by the Company) shall control.

     B.   Any action required or permitted to be taken at a meeting of the
Partners may be taken without a meeting if a written consent setting forth the
action so taken is signed by a majority of the Common Units of the Partners (or
such other percentage as is expressly required by this Agreement). Such consent
may be in one instrument or in several instruments, and shall have the same
force and effect as a vote of a majority of the Common Units of the Partners (or
such other percentage as is expressly required by this Agreement). Such consent
shall be filed with the General Partner. An action so taken shall be deemed to
have been taken at a meeting held on the effective date so certified.

     C.   Each Limited Partner may authorize any Person or Persons to act for
him by proxy on all matters in which a Limited Partner is entitled to
participate, including waiving notice of any meeting, or voting or participating
at a meeting. Every proxy must be signed by the Limited Partner or his attorney-
in-fact. No proxy shall be valid after the expiration of twelve (12) months from
the date thereof unless otherwise provided in the proxy. Every proxy shall be
revocable at the pleasure of the Limited Partner executing it, such revocation
to be effective upon the Partnership's receipt of written notice of such
revocation from the Limited Partner executing such proxy.

     D.   Each meeting of the Partners shall be conducted by the General Partner
or such other Person as the General Partner may appoint pursuant to such rules
for the conduct of the meeting as the General Partner or such other Person deems
appropriate. Without limitation, meetings of Partners may be conducted in the
same manner as meetings of the shareholders of the Company and may be held at
the same time, and as part of, meetings of the shareholders of the Company.

                                       59
<PAGE>
 
                                  ARTICLE 15
                              GENERAL PROVISIONS

     Section 15.1  Addresses and Notice

     Any notice, demand, request or report required or permitted to be given or
made to a Partner or Assignee under this Agreement shall be in writing and shall
be deemed given or made when delivered in person or when sent by first class
United States mail or by other means of written communication to the Partner or
Assignee at the address set forth in Exhibit A or such other address of which
the Partner shall notify the General Partner in writing.

     Section 15.2  Titles and Captions

     All article or section titles or captions in this Agreement are for
convenience only. They shall not be deemed part of this Agreement and in no way
define, limit, extend or describe the scope or intent of any provisions hereof.
Except as specifically provided otherwise, references to "Articles" and
"Sections" are to Articles and Sections of this Agreement.

     Section 15.3  Pronouns and Plurals

     Whenever the context may require, any pronoun used in this Agreement shall
include the corresponding masculine, feminine or neuter forms, and the singular
form of nouns, pronouns and verbs shall include the plural and vice versa.

     Section 15.4  Further Action

     The parties shall execute and deliver all documents, provide all
information and take or refrain from taking action as may be necessary or
appropriate to achieve the purposes of this Agreement.

     Section 15.5  Binding Effect

     This Agreement shall be binding upon and inure to the benefit of the
parties hereto and their heirs, executors, administrators, successors, legal
representatives and permitted assigns.

     Section 15.6  Creditors

     Other than as expressly set forth herein with respect to the Indemnities,
none of the provisions of this Agreement shall be for the benefit of, or shall
be enforceable by, any creditor of the Partnership.

                                       60
<PAGE>
 
     Section 15.7  Waiver

     No failure by any party to insist upon the strict performance of any
covenant, duty, agreement or condition of this Agreement or to exercise any
right or remedy consequent upon a breach thereof shall constitute waiver of any
such breach or any other covenant, duty, agreement or condition.

     Section 15.8  Counterparts

     This Agreement may be executed in counterparts, all of which together shall
constitute one agreement binding on all of the parties hereto, notwithstanding
that all such parties are not signatories to the original or the same
counterpart.  Each party shall become bound by this Agreement immediately upon
affixing its signature hereto.

     Section 15.9  Applicable Law

     This Agreement shall be construed and enforced in accordance with and
governed by the laws of the State of Delaware, without regard to the principles
of conflicts of law.

     Section 15.10 Invalidity of Provisions

     If any provision of this Agreement shall to any extent be held void or
unenforceable (as to duration, scope, activity, subject or otherwise) by a court
of competent jurisdiction, such provision shall be deemed to be modified so as
to constitute a provision conforming as nearly as possible to the original
provision while still remaining valid and enforceable. In such event, the
remainder of this Agreement (or the application of such provision to persons or
circumstances other than those in respect of which it is deemed to be void or
unenforceable) shall not be affected thereby. Each other provision of this
Agreement, unless specifically conditioned upon the voided aspect of such
provision, shall remain valid and enforceable to the fullest extent permitted by
law; any other provisions of this Agreement that are specifically conditioned on
the voided aspect of such invalid provision shall also be deemed to be modified
so as to constitute a provision conforming as nearly as possible to the original
provision while still remaining valid and enforceable to the fullest extent
permitted by law.

     Section 15.11 Entire Agreement

     This Agreement contains the entire understanding and agreement among the
Partners with respect to the subject matter hereof and supersedes the Prior
Agreement, any other prior written or oral understandings or agreements among
them with respect thereto.

                                       61
<PAGE>
 
     IN WITNESS WHEREOF, the parties hereto have executed this Second Amended
and Restated Agreement of Limited Partnership as of the date first written
above.

                              GENERAL PARTNER:

                              BOSTON PROPERTIES, INC.


                              By: /s/ William J. Wedge
                                  ____________________________________
                                  William J. Wedge
                                  Senior Vice President

                              LIMITED PARTNERS:

                              BOSTON PROPERTIES, INC.,
                              as attorney-in-fact for the Limited Partners


                              By: /s/ William J. Wedge
                                  ____________________________________
                                  William J. Wedge
                                  Senior Vice President

                                       62
<PAGE>
 
                    FORM OF LIMITED PARTNER SIGNATURE PAGE
                   FOR PARTNERS ADMITTED AFTER JUNE 29, 1998

      The undersigned, desiring to become one of the within named Limited 
Partners of Boston Properties Limited Partnership, hereby becomes a party to the
Second Amended and Restated Agreement of Limited Partnership of Boston 
Properties Limited Partnership by and among Boston Properties, Inc. and such 
Limited Partners, dated as of June 29, 1997, as amended. The undersigned agrees 
that this signature page may be attached to any counterpart of said Agreement of
Limited Partnership.

                   Signature Line for Limited Partner:

                                                      [Name]


                                                       By:
                                                          Name:
                                                          Title:
                                                          Date:

                     Address of Limited Partner:         
                                                -------------------------------


                                                -------------------------------
