GSAA HOME EQUITY TRUST 2006-18 ASSET-BACKED CERTIFICATES SERIES 2006-18 ASSIGNMENT, ASSUMPTION AND RECOGNITION AGREEMENT

                                                                  Exhibit 99.7


                                                                EXECUTION COPY




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                        GSAA HOME EQUITY TRUST 2006-18

                           ASSET-BACKED CERTIFICATES

                                SERIES 2006-18



               ASSIGNMENT, ASSUMPTION AND RECOGNITION AGREEMENT

                                     among

                        GOLDMAN SACHS MORTGAGE COMPANY,
                                  as Assignor

                         GS MORTGAGE SECURITIES CORP.,
                                  as Assignee

                                      and

                       GREENPOINT MORTGAGE FUNDING, INC.
                                  as Servicer

                                  Dated as of

                               November 30, 2006



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               ASSIGNMENT, ASSUMPTION AND RECOGNITION AGREEMENT

            ASSIGNMENT, ASSUMPTION AND RECOGNITION AGREEMENT (this "Assignment
Agreement") made this 30th day of November, 2006, among GreenPoint Mortgage
Funding, Inc., ("GreenPoint" or the "Servicer"), GS Mortgage Securities Corp.,
as assignee (the "Assignee") and Goldman Sachs Mortgage Company, as assignor
(the "Assignor").

            WHEREAS, the Assignor and the Servicer have entered into (i) the
Servicing Agreement, dated as of November 1, 2005 (the "Servicing Agreement"),
and (ii) the Amended and Restated Master Mortgage Loan Purchase Agreement,
dated as of November 1, 2005 (the "Sale Agreement"), pursuant to which the
Servicer sold to the Assignor certain mortgage loans listed on the mortgage
loan schedule attached as an exhibit to the Servicing Agreement;

            WHEREAS, the Assignee has agreed on certain terms and conditions
to purchase from the Assignor certain of the mortgage loans (the "Mortgage
Loans"), which are subject to the provisions of the Servicing Agreement and
Sale Agreement and are listed on the mortgage loan schedule attached as
Exhibit 1 hereto (the "Mortgage Loan Schedule"); and

            WHEREAS, pursuant to a Master Servicing and Trust Agreement, dated
as of November 1, 2006 (the "Trust Agreement"), among GS Mortgage Securities
Corp., as depositor, Deutsche Bank National Trust Company, as trustee (in such
capacity, the "Trustee") and as a custodian, The Bank of New York Trust
Company, National Association, as a custodian, U.S. Bank National Association,
as a custodian and Wells Fargo Bank, National Association, as master servicer
(in such capacity, the "Master Servicer"), securities administrator and as a
custodian, the Assignee will transfer the Mortgage Loans to the Trustee,
together with the Assignee's rights under the Servicing Agreement, to the
extent relating to the Mortgage Loans (other than the rights of the Assignor
(and if applicable its affiliates, officers, directors and agents) to
indemnification thereunder).

            NOW THEREFORE, in consideration of the mutual promises contained
herein and other good and valuable consideration, the receipt and sufficiency
of which are hereby acknowledged, the parties agree as follows:

            1. Assignment and Assumption.

            (a) The Assignor hereby assigns to the Assignee, as of the date
hereof, all of its right, title and interest in and to the Mortgage Loans, the
Servicing Agreement and the Sale Agreement, to the extent relating to the
Mortgage Loans (other than the rights of the Assignor (and if applicable its
affiliates, officers, directors and agents) to indemnification thereunder),
and the Assignee hereby assumes all of the Assignor's obligations under the
Servicing Agreement and the Sale Agreement, to the extent relating to the
Mortgage Loans, from and after the date hereof, and the Servicer hereby
acknowledges such assignment and assumption and hereby agrees to the release
of the Assignor from any obligations under the Servicing Agreement and the
Sale Agreement from and after the date hereof, to the extent relating to the
Mortgage Loans.

            (b) The Assignor represents and warrants to the Assignee that the
Assignor has not taken any action which would serve to impair or encumber the
Assignor's ownership


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interest in the Mortgage Loans since the respective dates of the Servicing
Agreement and the Sale Agreement.

            (c) The Servicer and the Assignor shall have the right to amend,
modify or terminate the Servicing Agreement without the joinder of the
Assignee with respect to mortgage loans not conveyed to the Assignee
hereunder; provided, however, that such amendment, modification or termination
shall not affect or be binding on the Assignee.

            2. Modification of the Sale Agreement. Only in so far as it
relates to the Mortgage Loans, the Servicer and the Assignor hereby amend the
Sale Agreement as follows:

            (a) The definition of "Repurchase Price" in Article I of the shall
be amended by deleting the definition in its entirety and replacing it with
the following:

            Repurchase Price: With respect to any Mortgage Loan, a price equal
to (i) the Stated Principal Balance of the Mortgage Loan as of the date of
repurchase plus (ii) interest on such Stated Principal Balance at the Mortgage
Loan Remittance Rate from the last date through which interest has been paid
and distributed to the Purchaser to the last day of the month in which the
repurchase occurs, less amounts received or advanced in respect of such
repurchased Mortgage Loan which such amounts are being held in the Custodial
Account for distribution in the month of repurchase plus (iii) with respect to
any Mortgage Loan included in a Securitization Transaction, damages incurred
by the Purchaser or its assignee including the trust in any securitization in
connection with any violation by such Mortgage Loan of any predatory or
abusive lending law.

            (b) The definition of "Remittance Date" in Article I of the shall
be amended by deleting the definition in its entirety and replacing it with
the following:

            "With respect to each Mortgage Loan: the eighteenth (18th) day of
any month, beginning with the eighteenth (18th) day of the month next
following the month in which the related Cut-off Date occurs, or if such
eighteenth (18th) day is not a Business Day, the immediately preceding
Business Day."

            (c) a new section, Section 8, will be added immediately following
Subsection 7.04 which shall read as follows:

            "SECTION 8. Third Party Beneficiary.

            Wells Fargo Bank, National Association, as master servicer and
securities administrator under the Master Servicing and Trust Agreement, dated
as of November 1, 2006, among GS Mortgage Securities Corp., Deutsche Bank
National Trust Company, The Bank of New York Trust Company, National
Association, U.S. Bank National Association and Wells Fargo Bank, National
Association shall be considered a third party beneficiary to this Agreement
entitled to all of the rights and benefits accruing to it as if it were a
direct party to this Agreement."


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            3. Modification of the Servicing Agreement. Only in so far as it
relates to the Mortgage Loans, the Servicer and the Assignor hereby amend the
Servicing Agreement as follows:

            (a) a new section, Section 11, will be added immediately following
Subsection 10.07 which shall read as follows:

            "SECTION 11. Third Party Beneficiary.

            Wells Fargo Bank, National Association, as master servicer and
securities administrator under the Master Servicing and Trust Agreement, dated
as of November 1, 2006, among GS Mortgage Securities Corp., Deutsche Bank
National Trust Company, The Bank of New York Trust Company, National
Association, U.S. Bank National Association and Wells Fargo Bank, National
Association shall be considered a third party beneficiary to this Agreement
entitled to all of the rights and benefits accruing to it as if it were a
direct party to this Agreement."

            (b) the definition of "Business Day" in Section 1 shall be amended
by deleting the definition in its entirety and replacing it with the
following:

            "Business Day: Any day other than (i) a Saturday or Sunday, or
(ii) a day on which banking or savings and loan institutions in the States of
California, Maryland, Minnesota or New York are authorized or obligated by law
or executive order to be closed."

            (c) The second paragraph of Section 3.13(c) shall be deleted in
its entirety and replaced with:

            "The Servicer shall use its best efforts to dispose of the REO
Property as soon as possible and shall sell such REO Property in any event
within three years after title has been taken to such REO Property, not later
than the end of the third taxable year after the year of its acquisition
unless (i) (A) a REMIC election has not been made with respect to the
arrangement under which the Mortgage Loans and the REO Property are held, and
(ii) the Servicer determines, and gives an appropriate notice to the Owner to
such effect, that a longer period is necessary for the orderly liquidation of
such REO Property. If a period longer than three years is permitted under the
foregoing sentence and is necessary to sell any REO Property, (i) the Servicer
shall report monthly to the Owner as to the progress being made in selling
such REO Property, (ii) the Servicer shall obtain an extension from the
Internal Revenue Service and (iii) if, with the written consent of the Owner,
a purchase money mortgage is taken in connection with such sale, such purchase
money mortgage shall name the Servicer as mortgagee, and such purchase money
mortgage shall not be held pursuant to this Agreement, but instead a separate
participation agreement among the Servicer and Owner shall be entered into
with respect to such purchase money mortgage."

            (d) Section 4.1(b) shall be amended by deleting it in its entirety
and replacing it with the following:

            With respect to any remittance to the Owner made by the Servicer
after the date such remittance was due, the Servicer shall pay to the Owner
interest on such late remittance at


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an annual rate equal to Prime plus two percent (2.0%), but in no event greater
than the maximum amount permitted by applicable law. Such interest shall be
deposited in the Custodial Account by the Servicer on the date such late
remittance is made and shall cover the period commencing with the day
immediately following the Remittance Date and ending with the Business Day on
which such late remittance is made, both inclusive. Such interest shall be
remitted along with such late remittance. The payment by the Servicer of any
such interest shall not be deemed an extension of time for payment or a waiver
of any Event of Default by the Servicer.

            (e) Section 5.4(a) shall be amended by replacing the words "March
15" with the words "February 28 (provided that if, February 28 is not a
Business Day the immediately preceding Business Day).";

            (f) Section 5.4(b) shall be amended by replacing the words "March
15" with the words "February 28 (provided that if, February 28 is not a
Business Day the immediately preceding Business Day).";

            (g) Section 5.5 shall be amended by replacing the words "March 15"
with the words "February 28 (provided that if, February 28 is not a Business
Day the immediately preceding Business Day)";

            (h) Section 6.1 shall be amended by deleting the first paragraph
of Section 6.1 and replacing it with the following:

            "Subject to Section 6.3, the Servicer agrees to indemnify and hold
harmless the Owner or Master Servicer, as applicable, against any and all
Losses that the Owner or Master Servicer may sustain in any way related to the
failure of such Servicer to service the Mortgage Loans in compliance with the
terms of this Agreement; provided, however, the Servicer shall not be liable
hereunder (a) to the extent such Losses directly result from the Custodian's
negligent action, negligent failure to act, bad faith, willful misconduct or
breach under the Custodial Agreement, dated as of April 1, 2004, among the
Owner and the Custodian, (b) with respect to any action or inaction in
accordance with the direction or consent of the Owner or (c) resulting from
the Owner's failure to respond to a request by the Servicer for direction or
consent in accordance with Section 3.1(c) hereof. The Servicer shall
immediately notify the Owner and the Master Servicer, if a claim is made by a
third party with respect to this Agreement or the Mortgage Loans. The Servicer
shall assume (with the written notification to the Owner or Master Servicer,
as applicable) the defense of any such claim and pay all reasonable expenses
in connection therewith, including counsel fees, and promptly pay, discharge
and satisfy any judgment or decree which may be entered against the Servicer,
the Owner or the Master Servicer, subject to limitation pursuant to this
Section 6.1, in respect of such claim. The Servicer shall follow any written
instructions received from the Owner or the Master Servicer, as applicable, in
connection with any such claim and the Owner or the Master Servicer, as
applicable, shall promptly reimburse the Servicer for all amounts reasonably
advanced by it pursuant to the preceding sentence, except when the claim (a)
is related to the Servicer's obligations to indemnify the Owner or Master
Servicer pursuant hereto, (b) results from the failure of the Servicer to
service the Mortgage Loans in compliance with the terms of this Agreement or
(c) results from the Servicer's willful misconduct, bad faith or negligence in
performing its duties under this Agreement."


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            (i) Section 7.1 shall be amended as follows:

            (i) Subsection (ii) of Section 7.1 shall be deleted in its
entirety and replaced with the following:

            "failure by the Servicer duly to observe or perform in any
material respect any of the covenants or agreements on the part of the
Servicer set forth in this Agreement (other than those listed in subsection
(i) and subsection (x) of this Section 7.1) which continues unremedied for a
period of 30 days after the date on which written notice of such failure,
requiring the same to be remedied, shall have been given to the Servicer by
the Owner or by the Custodian; or"; and

            (ii) A new subsection (x) shall be added immediately following
subsection (ix) which shall be as follows:

            "failure by the Servicer duly to observe or perform in any
material respect any of the covenants or agreements on the part of the
Servicer set forth in Section 5.4 of this Agreement which continues unremedied
for a period of fifteen (15) days after the date on which written notice of
such failure, requiring the same to be remedied shall have been given to the
Servicer."

            (iii) The words "thirty (30) Business Days" in the third sentence
of Section 7.1 shall be deleted and replaced with the words "thirty calendar
days"

            (j) Section 8.2(a) shall be amended by deleting the words "30
days'" from the first sentence of the first paragraph thereof.

            (k) Section 9.1(b) shall be deleted in its entirety and replaced
with the following:

            "The Servicer shall deliver to the successor (i) the funds in the
Custodial Account and the Escrow Account to which the Owner is entitled
pursuant to the terms of this Agreement, (ii) all other funds to which the
Owner is entitled pursuant to the terms of this Agreement net of any
unreimbursed Advances and (iii) all other amounts which may thereafter be
received with respect to the Mortgage Loans and to which the Servicer is not
entitled pursuant to the terms of this Agreement within two Business Days of
receiving notice of the appointment of such successor servicer. The Servicer
shall deliver all Collateral Files and Servicing Files and related documents
and statements held by it hereunder within thirty calendar days of receiving
notice of the appointment of a successor servicer. The Servicer shall account
for all funds and shall execute and deliver such instruments and do such other
things as may reasonably be required to more fully and definitively vest in
the successor all such rights, powers, duties, responsibilities, obligations
and liabilities of the Servicer."

            (l) Exhibit E shall be deleted in its entirety and be replaced
with a new "Exhibit E" which shall be as set forth in Exhibit 4 attached to
this Assignment Agreement.

            4. Accuracy of the Servicing Agreement and the Sale Agreement. The
Servicer and the Assignor represent and warrant to the Assignee that (i)
attached hereto as Exhibit 2 is a true, accurate and complete copy of the
Servicing Agreement, (ii) attached hereto as Exhibit 3 is a true, accurate and
complete copy of the Sale Agreement, (iii) each of the


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Servicing Agreement and the Sale Agreement is in full force and effect as of
the date hereof, (iv) except as provided in Section 2 above, each of the
Servicing Agreement and the Sale Agreement has not been amended or modified in
any respect and (v) no notice of termination has been given to the Servicer
under the Servicing Agreement or the Sale Agreement. The Servicer, in its
capacity as seller and/or servicer under each of the Servicing Agreement and
the Sale Agreement, further represents and warrants that the representations
and warranties contained in Section 2.1 of the Servicing Agreement are true
and correct as of the Closing Date (as such term is defined in the Servicing
Agreement) and the representations and warranties regarding the Mortgage Loans
contained in Section 3.02 of the Sale Agreement were true and correct as of
the Closing Date (as such term is defined in the Sale Agreement).

            5. Recognition of Assignee. From and after the date hereof, the
Servicer shall note the transfer of the Mortgage Loans to the Assignee in its
books and records, shall recognize the Assignee as the owner of the Mortgage
Loans and, notwithstanding anything herein to the contrary, shall service all
of the Mortgage Loans for the benefit of the Assignee pursuant to the
Servicing Agreement the terms of which are incorporated herein by reference.
It is the intention of the Assignor, Servicer and Assignee that the Servicing
Agreement shall be binding upon and inure to the benefit of the Servicer and
the Assignee and their successors and assigns.

            6. Representations and Warranties of the Assignee. The Assignee
hereby represents and warrants to the Assignor as follows:

            (a) Decision to Purchase. The Assignee represents and warrants
that it is a sophisticated investor able to evaluate the risks and merits of
the transactions contemplated hereby, and that it has not relied in connection
therewith upon any statements or representations of the Assignor or the
Servicer other than those contained in the Servicing Agreement, the Sale
Agreement or this Assignment Agreement.

            (b) Authority. The Assignee hereto represents and warrants that it
is duly and legally authorized to enter into this Assignment Agreement and to
perform its obligations hereunder and under the Servicing Agreement and the
Sale Agreement.

            (c) Enforceability. The Assignee hereto represents and warrants
that this Assignment Agreement has been duly authorized, executed and
delivered by it and (assuming due authorization, execution and delivery
thereof by each of the other parties hereto) constitutes its legal, valid and
binding obligation, enforceable in accordance with its terms, except as such
enforcement may be limited by bankruptcy, insolvency, reorganization or other
similar laws affecting the enforcement of creditors' rights generally and by
general equitable principles (regardless of whether such enforcement is
considered in a proceeding in equity or at law).

            7. Representations and Warranties of the Assignor. The Assignor
hereby represents and warrants to the Assignee as follows:

            (a) Organization. The Assignor has been duly organized and is
validly existing as a limited partnership in good standing under the laws of
the State of New York with


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full power and authority (corporate and other) to enter into and perform its
obligations under the Servicing Agreement, the Sale Agreement and this
Assignment Agreement.

            (b) Enforceability. This Assignment Agreement has been duly
executed and delivered by the Assignor, and, assuming due authorization,
execution and delivery by each of the other parties hereto, constitutes a
legal, valid, and binding agreement of the Assignor, enforceable against it in
accordance with its terms, subject to bankruptcy, insolvency, reorganization,
moratorium, or other similar laws affecting creditors' rights generally and to
general principles of equity regardless of whether enforcement is sought in a
proceeding in equity or at law.

            (c) No Consent. The execution, delivery and performance by the
Assignor of this Assignment Agreement and the consummation of the transactions
contemplated hereby do not require the consent or approval of, the giving of
notice to, the registration with, or the taking of any other action in respect
of, any state, federal or other governmental authority or agency, except such
as has been obtained, given, effected or taken prior to the date hereof.

            (d) Authorization; No Breach. The execution and delivery of this
Assignment Agreement have been duly authorized by all necessary corporate
action on the part of the Assignor; neither the execution and delivery by the
Assignor of this Assignment Agreement, nor the consummation by the Assignor of
the transactions herein contemplated, nor compliance by the Assignor with the
provisions hereof, will conflict with or result in a breach of, or constitute
a default under, any of the provisions of the governing documents of the
Assignor or any law, governmental rule or regulation or any material judgment,
decree or order binding on the Assignor or any of its properties, or any of
the provisions of any material indenture, mortgage, deed of trust, contract or
other instrument to which the Assignor is a party or by which it is bound.

            (e) Actions; Proceedings. There are no actions, suits or
proceedings pending or, to the knowledge of the Assignor, threatened, before
or by any court, administrative agency, arbitrator or governmental body (A)
with respect to any of the transactions contemplated by this Assignment
Agreement or (B) with respect to any other matter that in the judgment of the
Assignor will be determined adversely to the Assignor and will, if determined
adversely to the Assignor, materially adversely affect its ability to perform
its obligations under this Assignment Agreement.

            8. Additional Representations and Warranties of the Assignor With
Respect to the Mortgage Loans. The Assignor hereby represents and warrants to
the Assignee as follows:

            (a) Prior Assignments; Pledges. Except for the sale to the
Assignee, the Assignor has not assigned or pledged any Mortgage Note or the
related Mortgage or any interest or participation therein.

            (b) Releases. The Assignor has not satisfied, canceled or
subordinated in whole or in part, or rescinded any Mortgage, and the Assignor
has not released the related Mortgaged Property from the lien of any Mortgage,
in whole or in part, nor has the Assignor executed an instrument that would
effect any such release, cancellation, subordination, or


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rescission. The Assignor has not released any Mortgagor, in whole or in part,
except in connection with an assumption agreement or other agreement approved
by the related federal insurer, to the extent such approval was required.

            (c) Compliance with Applicable Laws. With respect to each Mortgage
Loan, any and all requirements of any federal, state or local law including,
without limitation, usury, truth-in-lending, real estate settlement
procedures, consumer credit protection, equal credit opportunity, predatory
and abusive lending or disclosure laws applicable to such Mortgage Loan,
including without limitation, any provisions relating to prepayment charges,
have been complied with.

            (d) High Cost. No Mortgage Loan is categorized as "High Cost"
pursuant to the then-current Standard & Poor's Glossary for File Format for
LEVELS(R) Version 5.7, Appendix E, as revised from time to time and in effect
as of the Original Purchase Date. Furthermore, none of the Mortgage Loans sold
by the Seller are classified as (a) a "high cost mortgage" loan under the Home
Ownership and Equity Protection Act of 1994 or (b) a "high cost home,"
"covered," "high-cost," "high-risk home," or "predatory" loan under any other
applicable state, federal or local law.

            (e) Georgia Fair Lending Act. No Mortgage Loan is secured by a
property in the state of Georgia and originated between October 1, 2002 and
March 7, 2003.