<DOCUMENT>
<TYPE>EX-99.2L.1
<SEQUENCE>10
<FILENAME>c72622a1exv99w2lw1.txt
<DESCRIPTION>OPIN. & CON. OF VEDDER, PRICE, KAUFMAN & KAMMHOLZ
<TEXT>
<PAGE>
                                                                     EXHIBIT l.1

VEDDER PRICE                                   VEDDER, PRICE, KAUFMAN & KAMMHOLZ
                                               222 NORTH LASALLE STREET
                                               CHICAGO, ILLINOIS 60601
                                               312-609-7500
                                               FACSIMILE: 312-609-5005

                                               A PARTNERSHIP INCLUDING VEDDER,
                                               PRICE, KAUFMAN & KAMMHOLZ, P.C.
                                               WITH OFFICES IN CHICAGO, NEW YORK
                                               CITY AND LIVINGSTON, NEW JERSEY

                                               January 8, 2003


Nuveen Insured Tax-Free Advantage Municipal Fund
333 West Wacker Drive
Chicago, Illinois 60606


         Re:     Nuveen Insured Tax-Free Advantage Municipal Fund
                 Municipal Auction Rate Cumulative Preferred Shares to be Issued
                 Pursuant to the Underwriting Agreement (File No. 333-100872)

Ladies and Gentlemen:

         We are acting as counsel to Nuveen Insured Tax-Free Advantage Municipal
Fund, a Massachusetts business trust (the "Fund"), in connection with the Fund's
filing of a registration statement on Form N-2 (the "Registration Statement")
with the Securities and Exchange Commission covering the registration and
proposed issuance of up to 2,880 shares Series T and 2,880 shares Series W of
its Municipal Auction Rate Cumulative Preferred Shares ("MuniPreferred"),
liquidation preference of $25,000 per share (the "Shares"). In that capacity, we
have examined such corporate records, certificates and other documents, and have
made such other factual and legal investigations as we have deemed necessary and
appropriate for the purposes of this opinion. Insofar as this opinion pertains
to matters governed by the laws of the Commonwealth of Massachusetts, we are
relying, with your consent, solely upon the opinion of Bingham McCutchen LLP
dated January 8, 2003, which opinion is satisfactory in substance and form to
us.

         We have assumed that the Registration Statement, the underwriting
agreement relating to the Fund's Shares and the Statement Establishing and
Fixing the Rights and Preferences of Municipal Auction Rate Cumulative Preferred
Shares (the "Statement") relating to the Fund's Shares will be duly completed,
executed and delivered and in accordance with the resolutions of the Trustees
attached to a Certificate of the Secretary of the Fund, certifying as to, and
attaching copies of, the Fund's Declaration of Trust ("Declaration"), Statement,
By-Laws, and certain resolutions adopted by the Trustees of the Fund and that
the Statement will be duly filed with the Office of the Secretary of the
Commonwealth of Massachusetts.

         Based upon the foregoing, it is our opinion that:

         (1)      The Fund is duly established and validly existing under the
                  Fund's Declaration and the laws of the Commonwealth of
                  Massachusetts as a voluntary association


<PAGE>

VEDDER PRICE

Nuveen Insured Tax-Free Advantage Municipal Fund
January 8, 2003
Page 2


                  with transferable shares of beneficial interest commonly
                  referred to as a "Massachusetts business trust."

         (2)      The Shares, when issued and sold in accordance with the Fund's
                  Declaration, Statement and By-Laws and for the consideration
                  described in the Underwriting Agreement, will be legally
                  issued, fully paid and non-assessable, except that, as set
                  forth in the Registration Statement, shareholders of the Fund
                  may under certain circumstances be held personally liable for
                  its obligations.

         We hereby consent to the filing of this opinion as Exhibit l.1 to the
Registration Statement and to the reference to us under the caption "Legal
Opinions" in the prospectus contained in the Registration Statement. In giving
this consent, we do not admit that we are within the category of persons whose
consent is required under Section 7 of the Securities Act of 1933 or the rules
and regulations thereunder.

                                             Very truly yours,



                                             VEDDER, PRICE, KAUFMAN & KAMMHOLZ



JTB/DAS

</TEXT>
</DOCUMENT>
