Document:

m574_ECR 2005-4 PSA Amendment No. 1

_____________________________________

AMENDMENT NO. 1

Dated as of May 8, 2006

to

POOLING AND SERVICING AGREEMENT

Dated as of October 1, 2005

among

ASSET BACKED SECURITIES CORPORATION

Depositor,

ENCORE CREDIT CORP.

Seller and Servicer,

CITIMORTGAGE, INC.

Master Servicer,

MORTGAGERAMP, INC.,

Loan Performance Advisor,

DEUTSCHE BANK NATIONAL TRUST COMPANY

Trustee

and

CITIBANK, N.A.

Securities Administrator

Encore Credit Receivables Trust 2005-4

Asset Backed Pass-Through Certificates, Series 2005-4

______________________________________

THIS AMENDMENT NO. 1, dated as of May 8, 2006 (the “Amendment”), to the Pooling and Servicing Agreement (the “Pooling and Servicing Agreement”) dated as of October 1, 2005, among ASSET BACKED SECURITIES CORPORATION, as depositor (the “Depositor”), ENCORE CREDIT CORP., as seller and servicer (in its respective capacity the “Seller” or the “Servicer”), CITIMORTGAGE, INC. as master servicer (the “Master Servicer”), MORTGAGERAMP, INC., as loan performance advisor (the “Loan Performance Advisor”), CITIBANK, N.A. as securities administrator (the “Securities Administrator”) and DEUTSCHE BANK NATIONAL TRUST COMPANY, as trustee (the “Trustee”).

W I T N E S S E T H

WHEREAS, the Depositor, the Seller, the Servicer, the Master Servicer, the Loan Performance Advisor, the Securities Administrator and the Trustee entered into the Pooling and Servicing Agreement;

WHEREAS, Section 11.01 of the Pooling and Servicing Agreement permits amendments to the Pooling and Servicing Agreement to modify, alter, amend, add to or rescind any of the terms or provisions contained in the Pooling and Servicing Agreement, provided that the Rating Agencies confirm that the Amendment will not result in the downgrading or withdrawal of the respective ratings then assigned to the Certificates;

WHEREAS, the Depositor has received a letter from each Rating Agency, copies of which are attached hereto as Exhibit A, stating that the Amendment will not result in a downgrading or withdrawal of the respective ratings then assigned to the Certificates;

NOW, THEREFORE, the parties hereto hereby agree as follows:

SECTION 1.  

Defined Terms.

For purposes of this Amendment, unless the context clearly requires otherwise, all capitalized terms which are used but not otherwise defined herein shall have the respective meanings assigned to such terms in the Pooling and Servicing Agreement.

SECTION 2.  

Amendments to the Pooling and Servicing Agreement.

Section 3.21 is hereby deleted in its entirety and replaced with the following:

“Not later than March 10 of each calendar year with respect to any calendar year during which the Depositor’s annual report on Form 10-K is required to be filed pursuant to Section 4.07(b) (or if such day is not a Business Day, the immediately preceding Business Day), the Servicer, or, at the direction of the Servicer, a Sub-Servicer, at its expense, shall cause a nationally recognized firm of independent certified public accountants to furnish to the Securities Administrator, the Depositor, the Master Servicer and each Rating Agency a report stating that (i) it has obtained a letter of representation regarding certain matters from the management of the Sevicer or the Sub-Servicer, as applicable, which includes an assertion that such Servicer or Sub-Servicer, as applicable, has complied with certain minimum residential mortgage loan servicing standards, identified in the Uniform Single Attestation Program for Mortgage Bankers established by the Mortgage Bankers Association of America, with respect to the servicing of residential mortgage loans during the most recently completed fiscal year and (ii) on the basis of an examination conducted by such firm in accordance with standards established by the American Institute of Certified Public Accountants, such representation is fairly stated in all material respects, subject to such exceptions and other qualifications that may be appropriate.  In rendering its report such firm may rely, as to matters relating to the direct servicing of residential mortgage loans by a the Servicer or its Sub-Servicer, as applicable, upon comparable reports of firms of independent certified public accountants rendered on the basis of examinations conducted in accordance with the same standards (rendered within one year of such report) with respect to the Servicer or such Sub-Servicer, as applicable.  Copies of such statement shall be provided by the Securities Administrator to any Certificateholder upon request at the requesting party’s expense, provided that such statement is delivered by the Servicer to the Securities Administrator.  In the event such firm of independent certified public accountants requires the Securities Administrator to agree to the procedures performed by such firm, the Servicer shall direct the Securities Administrator in writing to so agree; it being understood and agreed that the Securities Administrator will deliver such letter of agreement in conclusive reliance upon the direction of the Servicer, and the Securities Administrator has not made any independent inquiry or investigation as to, and shall have no obligation or liability in respect of, the sufficiency, validity or correctness of such procedures.  For so long as the loan-level servicing is provided entirely by a Sub-Servicer, this section shall be applicable only to the Sub-Servicer, and not to the Servicer.”

SECTION 3.  Binding Effect.

The provisions of this Amendment shall be binding upon and inure to the benefit of the respective successors and assigns of the parties hereto, and all such provisions shall inure to the benefit of the Depositor, the Seller, the Servicer, the Master Servicer, the Loan Performance Advisor, the Securities Administrator and the Trustee.

SECTION 4.  Effective Date. 

The provisions of this Amendment and the changes to the Pooling and Servicing Agreement provided for herein shall be effective as of May 8, 2006.

SECTION 5.  Governing Law.

This Amendment shall be construed in accordance with the substantive laws of the State of New York (without regard to conflict of law principles) and the obligations, rights and remedies of the parties hereto shall be determined in accordance with such laws.

SECTION 6.  Severability of Provisions.

If any one or more of the provisions or terms of this Amendment shall be for any reason whatsoever held invalid, then such provisions or terms shall be deemed severable from the remaining provisions or terms of this Amendment and shall in no way affect the validity or enforceability of the other provisions or terms of this Amendment.

SECTION 7.  Section Headings.

The section headings herein are for convenience of reference only, and shall not limit or otherwise affect the meaning hereof.

SECTION 8.  Counterparts.

This Amendment may be executed in several counterparts, each of which shall be an original and all of which shall constitute but one and the same instrument.

[signature pages follow]

IN WITNESS WHEREOF, the Depositor, the Seller, the Servicer, the Master Servicer, the Loan Performance Advisor, the Securities Administrator and the Trustee have caused their names to be signed hereto by their respective officers thereunto duly authorized as of the day and year first above written.

ASSET BACKED SECURITIES CORPORATION,

as Depositor

By:/s/ Lloyd A. Brown

Name:  Lloyd A. Brown

Title:  Vice President

ENCORE CREDIT CORP.,

as Seller and Servicer

By:/s/ Troy Gotschall

Name:  Troy Gotschall

Title:  CEO/President

CITIMORTGAGE, INC.,

as Master Servicer

By:/s/ Tommy R. Harris

Name:  Tommy R. Harris

Title:  Sr. Vice President

CITIBANK, N.A.,

as Securities Administrator

By:/s/ Kristen Driscoll

Name:  Kristen Driscoll

Title:  Vice President

[Signature page continues on the following page]

MORTGAGERAMP, INC., as loan performance advisor

By:/s/ Ken Beyer

Name:  Ken  Beyer

Title:  Chief Executive Officer

DEUTSCHE BANK NATIONAL TRUST COMPANY,

as Trustee

By:/s/ Barbara Campbell

Name:  Barbara Campbell

Title:  Vice President

Exhibit A

[Rating Confirmations from Rating Agencies]

[ON FILE]JPMAC 2006-HE1 Amendment

______________________________________

AMENDMENT NO. 1

Dated as of June 30, 2006

to

POOLING AND SERVICING AGREEMENT

Dated as of February 1, 2006

among

J.P. MORGAN ACCEPTANCE CORPORATION I,

Depositor,

J.P. MORGAN MORTGAGE ACQUISITION CORP.,

Seller,

JPMORGAN CHASE BANK, NATIONAL ASSOCIATION,

Securities Administrator and Servicer,

U.S. BANK NATIONAL ASSOCIATION

Trustee

and

PENTALPHA SURVEILLANCE LLC

Trust Oversight Manager

J.P. Morgan Mortgage Acquisition Corp. 2006-HE1

Asset Backed Pass-Through Certificates, Series 2006-HE1

______________________________________

THIS AMENDMENT NO. 1, dated as of June 30, 2006 (the “Amendment”), to the Pooling and Servicing Agreement (the “Pooling and Servicing Agreement”), dated as February 1, 2006, among J.P. MORGAN ACCEPTANCE CORPORATION I, a Delaware corporation, as depositor (the “Depositor”), J.P. MORGAN MORTGAGE ACQUISITION CORP., a Delaware corporation, as seller (in such capacity, the “Seller”), JPMORGAN CHASE BANK, NATIONAL ASSOCIATION, a national banking association, as servicer (in such capacity, the “Servicer”), JPMORGAN CHASE BANK, NATIONAL ASSOCIATION, a national banking association, as securities administrator (in such capacity, the “Securities Administrator”), U.S. BANK NATIONAL ASSOCIATION, a national banking association, as trustee (in such capacity, the “Trustee”) and PENTALPHA SURVEILLANCE LLC, as trust oversight manager (in such capacity, the “Trust Oversight Manager”).

W I T N E S S E T H

WHEREAS, the Depositor, the Seller, the Servicer, the Securities Administrator, the Trustee and the Trust Oversight Manager entered into the Pooling and Servicing Agreement;

WHEREAS, the parties hereto wish to amend the Pooling and Servicing Agreement as set forth herein;

WHEREAS, Section 11.01 of the Pooling and Servicing Agreement permits amendments to the Pooling and Servicing Agreement to correct, modify or supplement any provisions therein (including to give effect to the expectations of Certificateholders);

WHEREAS, Section 11.01 of the Pooling and Servicing Agreement provides that the Securities Administrator and the Trustee shall be entitled to receive an Opinion of Counsel to the effect that any such amendment will not result in the imposition of any federal income tax on any REMIC created under the Pooling and Servicing Agreement pursuant to the REMIC Provisions or cause any REMIC to fail to qualify as a REMIC at any time that any Certificates are outstanding;

WHEREAS, Section 11.01 of the Pooling and Servicing Agreement provides that the Securities Administrator shall be entitled to receive an Opinion of Counsel to the effect that any such amendment shall not adversely affect in any material respect the interests of any Certificateholder

WHEREAS, the Securities Administrator has received such Opinions of Counsel;

NOW, THEREFORE, the parties hereto hereby agree as follows:

SECTION 1.  

DEFINED TERMS.

For purposes of this Amendment, unless the context clearly requires otherwise, all capitalized terms which are used but not otherwise defined herein shall have the respective meanings assigned to such terms in the Pooling and Servicing Agreement.

SECTION 2.  

AMENDMENTS.

1.

Section 2.03(a)(ii) is hereby deleted in its entirety and replaced by the following:

Upon discovery by any of the parties hereto or receipt of notice by a Responsible Officer in the Corporate Trust Office of the Trustee of any breach by the Seller of any representation, warranty or covenant made by the Seller in Section 2.05(b)(i), (ii) and (iii) or by the Depositor in the third paragraph of Section 2.06 (with respect to such entity, the “Representing Party”) in respect of any Mortgage Loan that materially adversely affects the value of such Mortgage Loan or the interest therein of the Certificateholders (in the case of any such representation or warranty made to the knowledge or the best of knowledge of the Representing Party as to which the Representing Party has no knowledge, without regard to the Representing Party’s lack of knowledge with respect to the substance of such representation or warranty being inaccurate at the time it was made), such party or the Trustee shall promptly notify the Representing Party and the Servicer of such breach and cause the applicable Representing Party to cure such breach within 90 days from the date that Representing Party was notified of such breach.  Notwithstanding the foregoing, if applicable, any breach by the Depositor of any of the representations or warranties contained in the third paragraph of Section 2.06 shall be deemed to materially and adversely affect the interests of the Certificateholders in that Mortgage Loan. If the applicable Representing Party fails to cure such breach in all material respects during such period, the applicable Representing Party shall repurchase such Mortgage Loan from the Trust Fund at the Purchase Price.  The Purchase Price for the repurchased Mortgage Loan shall be deposited in the Distribution Account, and the Securities Administrator, upon receipt of such deposit, shall release or cause the Custodian to release to the Seller or the Depositor, as the case may be, the related Mortgage File and the Trustee shall execute and deliver such instruments of transfer or assignment, in each case without recourse, (provided, however, that in the instruments of transfer or assignment, the Trustee shall represent and warrant to the Seller or the Depositor, as applicable, that the repurchased Mortgage Loan is free and clear of any encumbrance, equity, lien, pledge, charge, claim or security interest created by the Trustee and its successors, assigns and transferees), as the Seller or the Depositor, as applicable, shall furnish to it and as shall be necessary to vest in the Seller or the Depositor, as the case may be, any Mortgage Loan released pursuant hereto, and the Trustee shall have no further responsibility with regard to such Mortgage File.  In lieu of repurchasing any such Mortgage Loan as provided above, if so provided in the Mortgage Loan Purchase Agreement, the Assignment and Assumption Agreement or this Agreement, the Seller or the Depositor, as applicable, may cause such Mortgage Loan to be removed from the Trust Fund (in which case it shall become a Deleted Mortgage Loan) and substitute one or more Qualified Substitute Mortgage Loans in the manner and subject to the limitations set forth in Section 2.03(c).  It is understood and agreed that the obligation of the Seller or the Depositor, as applicable, to cure or to repurchase (or to substitute for) any Mortgage Loan as to which such a breach has occurred and is continuing shall constitute the sole remedy respecting such breach available to the Trustee on behalf of the Certificateholders.

2.  Section 2.06 of the Pooling and Servicing Agreement is amended by adding the following language after the second paragraph thereof:

The Depositor hereby represents, warrants and covenants to the Trustee, the Swap Provider and the Securities Administrator that as of the Cut-Off Date:

To the knowledge of the Depositor, (i) no Mortgage Loan contemplated under the terms of this Agreement is covered by the Home Ownership and Equity Protection Act of 1994 or any comparable state law, (ii) no borrower obtained a prepaid single premium credit insurance policy in connection with the origination of a Group 1 Mortgage Loan; (iii) no subprime Group 1 Mortgage Loan originated on or after October 1, 2002 will impose a Prepayment Premium for a term in excess of three years, no Group 1 Mortgage Loan originated prior to such date, and no non-subprime Group 1 Mortgage Loan, will impose a Prepayment Premium in excess of five years, (iv) the Servicer for each Group 1 Mortgage Loan has fully furnished and will fully furnish, in accordance with the Fair Credit Reporting Act and its implementing regulations, accurate and complete information on its borrower credit files to Equifax, Experian and Trans Union Credit Information Company on a monthly basis, (v) no Group 1 Mortgage Loan secured by a Mortgaged Property located in the State of Georgia was originated on or after October 1, 2002 and before March 7, 2003 and no Group 1 Mortgage Loan secured by a Mortgaged Property located in the State of Georgia, originated on or after March 7, 2003 is a “high cost home loan” as defined in the Georgia Fair Lending Act (HB 1361), as amended, (vi) each Group 1 Mortgage Loan has an original principal balance that conforms to Fannie Mae and Freddie Mac guidelines in effect as of the Closing Date, (vii) with respect to any Group 1 Mortgage Loans that are on manufactured housing, such housing will be the principal residence of the borrower upon origination of such mortgage loan, (viii) with respect to any second lien Group 1 Mortgage Loans underlying the Certificates, such lien is on a one- to four-family residence that is (or will be) the principal residence of the borrower upon origination of the second lien and (ix) with respect to any Group 1 Mortgage Loan originated on or after August 1, 2004, either (a) the related Mortgage and the related Mortgage Note does not contain a mandatory arbitration clause (that is, a clause that requires the related Mortgagor to submit to arbitration to resolve any dispute arising out of or relating in any way to the Mortgage Loan) or (b) the related Mortgage and the related Mortgage Note contained a mandatory arbitration clause as of the related origination date and such clause has or will be waived by the originator or an entity designated by the Seller in writing no later than sixty (60) days after the related Closing Date which notice included or will include the following language: “WE ARE HEREBY NOTIFYING YOU THAT THE MANDATORY ARBITRATION CLAUSE OF YOUR LOAN, REQUIRING THAT YOU SUBMIT TO ARBITRATION TO RESOLVE ANY DISPUTE ARISING OUT OF OR RELATING IN ANY WAY TO YOUR MORTGAGE LOAN, IS IMMEDIATELY NULL AND VOID.  YOU ARE FREE TO CHOOSE TO EXERCISE ANY OF YOUR RIGHTS OR ENFORCE ANY REMEDIES UNDER YOUR MORTGAGE LOAN THROUGH THE COURT SYSTEM.”  A copy of the written notice referred to in the immediately preceding sentence, if applicable, shall be retained in the related Mortgage File.

SECTION 3.  EFFECT OF AMENDMENT.

Upon execution of this Amendment, the Pooling and Servicing Agreement shall be, and be deemed to be, modified and amended in accordance herewith and the respective rights, limitations, obligations, duties, liabilities and immunities of the Depositor, Seller, Servicer, Securities Administrator and the Trustee shall hereafter be determined, exercised and enforced subject in all respects to such modifications and amendments, and all the terms and conditions of this Amendment shall be deemed to be part of the terms and conditions of the Pooling and Servicing Agreement for any and all purposes.  Except as modified and expressly amended by this Amendment, the Pooling and Servicing Agreement is in all respects ratified and confirmed, and all the terms, provisions and conditions thereof shall be and remain in full force and effect.  Neither the Trustee nor the Securities Administrator makes any representation or warranty as to validity or sufficiency of this Amendment.

SECTION 4.  BINDING EFFECT.

The provisions of this Amendment shall be binding upon and inure to the benefit of the respective successors and assigns of the parties hereto, and all such provisions shall inure to the benefit of the Depositor, Seller, Servicer, Securities Administrator, the Trustee and the Trust Oversight Manager.

SECTION 5.  GOVERNING LAW.

This Amendment shall be construed in accordance with the substantive laws of the State of New York (without regard to conflict of law principles) and the obligations, rights and remedies of the parties hereto shall be determined in accordance with such laws.

SECTION 6.  SEVERABILITY OF PROVISIONS.

If any one or more of the provisions or terms of this Amendment shall be for any reason whatsoever held invalid, then such provisions or terms shall be deemed severable from the remaining provisions or terms of this Amendment and shall in no way affect the validity or enforceability of the other provisions or terms of this Amendment.

SECTION 7.  SECTION HEADINGS.

The section headings herein are for convenience of reference only, and shall not limit or otherwise affect the meaning hereof.

SECTION 8.  COUNTERPARTS.

This Amendment may be executed in several counterparts, each of which shall be an original and all of which shall constitute but one and the same instrument.

[signature pages follow]

IN WITNESS WHEREOF, the Depositor, the Seller, the Servicer, the Securities Administrator, the Trustee and the Trust Oversight Manager have caused their names to be signed hereto by their respective officers thereunto duly authorized as of the day and year first above written.

J.P. MORGAN ACCEPTANCE CORPORATION I,

as Depositor

By:  /s/ Paul H. White__________________

Name: Paul H. White

Title:  Vice President

J.P. MORGAN MORTGAGE ACQUISITION CORP.,

as Seller

By:  /s/ Paul H. White__________________

Name: Paul H. White

Title:  Vice President  

JPMORGAN CHASE BANK, NATIONAL ASSOCIATION,

as Servicer

By:  /s/ Barbara Tenorio_______________

Name:  Barbara Tenorio

Title: Assistant Vice President

JPMORGAN CHASE BANK, NATIONAL ASSOCIATION,

as Securities Administrator

By:  /s/ Pei Huang____________________

Name:  Pei Huang

Title:  Assistant Vice President

U.S. BANK NATIONAL ASSOCIATION,

as Trustee

By:  /s/ Melissa A. Rosal______________

Name:  Melissa A. Rosal

Title:  Vice President

PENTALPHA SURVEILLANCE LLC,

as Trust Oversight Manager

By:  /s/ James X. Callahan______   _____

Name: James X. Callahan

Title: Executive Director

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