<SEC-DOCUMENT>0000899243-18-028856.txt : 20181114
<SEC-HEADER>0000899243-18-028856.hdr.sgml : 20181114
<ACCEPTANCE-DATETIME>20181114125345
ACCESSION NUMBER:		0000899243-18-028856
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20181106
FILED AS OF DATE:		20181114
DATE AS OF CHANGE:		20181114

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Blackstone BGSL Holdings LLC
		CENTRAL INDEX KEY:			0001753348

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	814-01299
		FILM NUMBER:		181182131

	BUSINESS ADDRESS:	
		STREET 1:		345 PARK AVENUE
		STREET 2:		31ST FLOOR
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10154
		BUSINESS PHONE:		212-503-2100

	MAIL ADDRESS:	
		STREET 1:		345 PARK AVENUE
		STREET 2:		31ST FLOOR
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10154

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			GSO CAPITAL PARTNERS LP
		CENTRAL INDEX KEY:			0001362495
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	814-01299
		FILM NUMBER:		181182132

	BUSINESS ADDRESS:	
		STREET 1:		345 PARK AVENUE
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10154
		BUSINESS PHONE:		212-503-2100

	MAIL ADDRESS:	
		STREET 1:		345 PARK AVENUE
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10154

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			GSO Advisor Holdings L.L.C.
		CENTRAL INDEX KEY:			0001464624
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	814-01299
		FILM NUMBER:		181182133

	BUSINESS ADDRESS:	
		STREET 1:		C/O GSO CAPITAL PARTNERS LP
		STREET 2:		345 PARK AVENUE
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10154
		BUSINESS PHONE:		2125835000

	MAIL ADDRESS:	
		STREET 1:		C/O GSO CAPITAL PARTNERS LP
		STREET 2:		345 PARK AVENUE
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10154

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Blackstone Holdings I L.P.
		CENTRAL INDEX KEY:			0001464694
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	814-01299
		FILM NUMBER:		181182134

	BUSINESS ADDRESS:	
		STREET 1:		C/O THE BLACKSTONE GROUP
		STREET 2:		345 PARK AVENUE
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10154
		BUSINESS PHONE:		2125835000

	MAIL ADDRESS:	
		STREET 1:		C/O THE BLACKSTONE GROUP
		STREET 2:		345 PARK AVENUE
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10154

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Blackstone Holdings I/II GP Inc
		CENTRAL INDEX KEY:			0001464695
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	814-01299
		FILM NUMBER:		181182135

	BUSINESS ADDRESS:	
		STREET 1:		C/O THE BLACKSTONE GROUP
		STREET 2:		345 PARK AVENUE
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10154
		BUSINESS PHONE:		2125835000

	MAIL ADDRESS:	
		STREET 1:		C/O THE BLACKSTONE GROUP
		STREET 2:		345 PARK AVENUE
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10154

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Blackstone Group L.P.
		CENTRAL INDEX KEY:			0001393818
		STANDARD INDUSTRIAL CLASSIFICATION:	INVESTMENT ADVICE [6282]
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	814-01299
		FILM NUMBER:		181182136

	BUSINESS ADDRESS:	
		STREET 1:		345 PARK AVENUE
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10154
		BUSINESS PHONE:		(212) 583-5000

	MAIL ADDRESS:	
		STREET 1:		345 PARK AVENUE
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10154

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Blackstone Group Management L.L.C.
		CENTRAL INDEX KEY:			0001404071
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	814-01299
		FILM NUMBER:		181182137

	BUSINESS ADDRESS:	
		STREET 1:		345 PARK AVENUE
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10154
		BUSINESS PHONE:		(212) 583-5000

	MAIL ADDRESS:	
		STREET 1:		345 PARK AVENUE
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10154

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			SCHWARZMAN STEPHEN A
		CENTRAL INDEX KEY:			0001070844

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	814-01299
		FILM NUMBER:		181182138

	MAIL ADDRESS:	
		STREET 1:		C/O THE BLACKSTONE GROUP
		STREET 2:		345 PARK AVE
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10154

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Blackstone / GSO Secured Lending Fund
		CENTRAL INDEX KEY:			0001736035
		IRS NUMBER:				000000000
		STATE OF INCORPORATION:			DE

	BUSINESS ADDRESS:	
		STREET 1:		345 PARK AVENUE
		STREET 2:		31ST FLOOR
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10154
		BUSINESS PHONE:		212-503-2100

	MAIL ADDRESS:	
		STREET 1:		345 PARK AVENUE
		STREET 2:		31ST FLOOR
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10154
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>doc4.xml
<DESCRIPTION>FORM 4 SUBMISSION
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0306</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2018-11-06</periodOfReport>

    <notSubjectToSection16>1</notSubjectToSection16>

    <issuer>
        <issuerCik>0001736035</issuerCik>
        <issuerName>Blackstone / GSO Secured Lending Fund</issuerName>
        <issuerTradingSymbol>NONE</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001753348</rptOwnerCik>
            <rptOwnerName>Blackstone BGSL Holdings LLC</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O GSO CAPITAL PARTNERS LP, 31ST FLOOR</rptOwnerStreet1>
            <rptOwnerStreet2>345 PARK AVENUE</rptOwnerStreet2>
            <rptOwnerCity>NEW YORK</rptOwnerCity>
            <rptOwnerState>NY</rptOwnerState>
            <rptOwnerZipCode>10154</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001362495</rptOwnerCik>
            <rptOwnerName>GSO CAPITAL PARTNERS LP</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>345 PARK AVENUE, 31ST FLOOR</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>NEW YORK</rptOwnerCity>
            <rptOwnerState>NY</rptOwnerState>
            <rptOwnerZipCode>10154</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001464624</rptOwnerCik>
            <rptOwnerName>GSO Advisor Holdings L.L.C.</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O THE BLACKSTONE GROUP L.P.</rptOwnerStreet1>
            <rptOwnerStreet2>345 PARK AVENUE</rptOwnerStreet2>
            <rptOwnerCity>NEW YORK</rptOwnerCity>
            <rptOwnerState>NY</rptOwnerState>
            <rptOwnerZipCode>10154</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001464694</rptOwnerCik>
            <rptOwnerName>Blackstone Holdings I L.P.</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O THE BLACKSTONE GROUP L.P.</rptOwnerStreet1>
            <rptOwnerStreet2>345 PARK AVENUE</rptOwnerStreet2>
            <rptOwnerCity>NEW YORK</rptOwnerCity>
            <rptOwnerState>NY</rptOwnerState>
            <rptOwnerZipCode>10154</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001464695</rptOwnerCik>
            <rptOwnerName>Blackstone Holdings I/II GP Inc</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O THE BLACKSTONE GROUP L.P.</rptOwnerStreet1>
            <rptOwnerStreet2>345 PARK AVENUE</rptOwnerStreet2>
            <rptOwnerCity>NEW YORK</rptOwnerCity>
            <rptOwnerState>NY</rptOwnerState>
            <rptOwnerZipCode>10154</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001393818</rptOwnerCik>
            <rptOwnerName>Blackstone Group L.P.</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>345 PARK AVENUE</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>NEW YORK</rptOwnerCity>
            <rptOwnerState>NY</rptOwnerState>
            <rptOwnerZipCode>10154</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001404071</rptOwnerCik>
            <rptOwnerName>Blackstone Group Management L.L.C.</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O THE BLACKSTONE GROUP L.P.</rptOwnerStreet1>
            <rptOwnerStreet2>345 PARK AVENUE</rptOwnerStreet2>
            <rptOwnerCity>NEW YORK</rptOwnerCity>
            <rptOwnerState>NY</rptOwnerState>
            <rptOwnerZipCode>10154</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001070844</rptOwnerCik>
            <rptOwnerName>SCHWARZMAN STEPHEN A</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O THE BLACKSTONE GROUP L.P.</rptOwnerStreet1>
            <rptOwnerStreet2>345 PARK AVENUE</rptOwnerStreet2>
            <rptOwnerCity>NEW YORK</rptOwnerCity>
            <rptOwnerState>NY</rptOwnerState>
            <rptOwnerZipCode>10154</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Shares of Beneficial Interest</value>
            </securityTitle>
            <transactionDate>
                <value>2018-11-06</value>
            </transactionDate>
            <deemedExecutionDate></deemedExecutionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>P</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>192000</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>25.00</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>192060</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>See Footnotes</value>
                    <footnoteId id="F1"/>
                    <footnoteId id="F2"/>
                    <footnoteId id="F3"/>
                    <footnoteId id="F4"/>
                    <footnoteId id="F5"/>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <footnotes>
        <footnote id="F1">Reflects securities held directly by Blackstone BGSL Holdings LLC.</footnote>
        <footnote id="F2">GSO Capital Partners LP is the managing member of Blackstone BGSL Holdings LLC. GSO Advisor Holdings L.L.C. is a special limited partner of GSO Capital Partners LP with investment and voting power over the securities beneficially owned by GSO Capital Partners LP. Blackstone Holdings I L.P. is the sole member of GSO Advisor Holdings L.L.C. Blackstone Holdings I/II GP Inc. is the general partner of Blackstone Holdings I L.P. The Blackstone Group L.P. is the controlling shareholder of Blackstone Holdings I/II GP Inc. Blackstone Group Management L.L.C. is the general partner of The Blackstone Group L.P. Blackstone Group Management L.L.C. is wholly-owned by Blackstone's senior managing directors and controlled by its founder, Stephen A. Schwarzman.</footnote>
        <footnote id="F3">In addition, Bennett J. Goodman, a trustee of the Issuer, may be deemed to have shared voting power and/or investment power with respect to the securities beneficially owned by GSO Capital Partners LP and will report transactions in securities of the Issuer on a separate Form 4.</footnote>
        <footnote id="F4">Information with respect to each of the Reporting Persons is given solely by such Reporting Person, and no Reporting Person has responsibility for the accuracy or completeness of information supplied by another Reporting Person.</footnote>
        <footnote id="F5">Each of the Reporting Persons (other than Blackstone BGSL Holdings LLC to the extent it directly holds securities of the Issuer), disclaims beneficial ownership of the securities reported herein, except to the extent of such Reporting Person's pecuniary interest therein, and, pursuant to Rule 16a-1(a)(4) under the Securities Exchange Act of 1934, each of the Reporting Persons (other than Blackstone BGSL Holdings LLC to the extent it directly holds securities of the Issuer) states that the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purpose.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>BLACKSTONE BGSL HOLDINGS LLC, By: GSO Capital Partners LP, its Managing Member, By: /s/ Marisa J. Beeney, Name: Marisa J. Beeney, Title: Authorized Signatory</signatureName>
        <signatureDate>2018-11-14</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>GSO CAPITAL PARTNERS LP, By: /s/ Marisa J. Beeney, Name: Marisa J. Beeney, Title: Authorized Signatory</signatureName>
        <signatureDate>2018-11-14</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>GSO ADVISOR HOLDINGS L.L.C., By: Blackstone Holdings I L.P., its sole member, By: Blackstone Holdings I/II GP Inc., its general partner, By: /s/ John G. Finley, Name: John G. Finley, Title: Chief Legal Officer</signatureName>
        <signatureDate>2018-11-14</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>BLACKSTONE HOLDINGS I L.P., By: Blackstone Holdings I/II GP Inc., its general partner, By: /s/ John G. Finley, Name: John G. Finley, Title: Chief Legal Officer</signatureName>
        <signatureDate>2018-11-14</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>BLACKSTONE HOLDINGS I/II GP INC., By: /s/ John G. Finley, Name: John G. Finley, Title: Chief Legal Officer</signatureName>
        <signatureDate>2018-11-14</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>THE BLACKSTONE GROUP L.P., By: Blackstone Group Management L.L.C., its general partner, By:	/s/ John G. Finley, Name: John G. Finley, Title:  Chief Legal Officer</signatureName>
        <signatureDate>2018-11-14</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>BLACKSTONE GROUP MANAGEMENT L.L.C., By:	/s/ John G. Finley, Name: John G. Finley, Title:   Chief Legal Officer</signatureName>
        <signatureDate>2018-11-14</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>STEPHEN A. SCHWARZMAN, /s/ Stephen A. Schwarzman, Name: Stephen A. Schwarzman</signatureName>
        <signatureDate>2018-11-14</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
