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POOLING AND SERVICING AGREEMENT

Pooling and Servicing Agreement

POOLING AND SERVICING AGREEMENT | Document Parties: RASC SERIES 2005 EMX4 TRUST | RESIDENTIAL ASSET SECURITIES CORPORATION | RESIDENTIAL FUNDING CORPORATION | U.S. BANK NATIONAL ASSOCIATION You are currently viewing:
This Pooling and Servicing Agreement involves

RASC SERIES 2005 EMX4 TRUST | RESIDENTIAL ASSET SECURITIES CORPORATION | RESIDENTIAL FUNDING CORPORATION | U.S. BANK NATIONAL ASSOCIATION

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Title: POOLING AND SERVICING AGREEMENT
Governing Law: New York     Date: 12/15/2005

POOLING AND SERVICING AGREEMENT, Parties: rasc series 2005 emx4 trust , residential asset securities corporation , residential funding corporation , u.s. bank national association
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                                 EXECUTION COPY

 

 

                    RESIDENTIAL ASSET SECURITIES CORPORATION,

 

                                   Depositor,

 

                        RESIDENTIAL FUNDING CORPORATION,

 

                                Master Servicer,

 

                                       and

 

                         U.S. BANK NATIONAL ASSOCIATION

 

                                     Trustee

 

 

                         POOLING AND SERVICING AGREEMENT

 

                          Dated as of November 1, 2005

 

 

           Home Equity Mortgage Asset-Backed Pass-Through Certificates

 

                                Series 2005-EMX4

 

 

 

<PAGE>

<TABLE>

<CAPTION>

 

                                TABLE OF CONTENTS

 

                                                                                                              PAGE

 

<S>                                                                                                              <C>

ARTICLE I DEFINITIONS............................................................................................2

 

         Section 1.01.          Definitions.......................................................................2

 

         Section 1.02.          Determination of LIBOR............................................................2

 

ARTICLE II CONVEYANCE OF MORTGAGE LOANS; ORIGINAL ISSUANCE OF CERTIFICATES.......................................2

 

         Section 2.01.          Conveyance of Mortgage Loans......................................................2

 

         Section 2.02.          Acceptance by Trustee.............................................................2

 

         Section 2.03.          Representations, Warranties and Covenants of the Master Servicer and the

                                Depositor.........................................................................2

 

         Section 2.04.          Representations and Warranties of Sellers.........................................2

 

         Section 2.05.          Execution and Authentication of Certificates; Conveyance of REMIC-I

                               Regular Interests.................................................................2

 

         Section 2.06.          Purposes and Powers of the Trust..................................................2

 

         Section 2.07.          Agreement Regarding Ability to Disclose...........................................2

 

ARTICLE III ADMINISTRATION AND SERVICING OF MORTGAGE LOANS.......................................................2

 

         Section 3.01.          Master Servicer to Act as Servicer................................................2

 

         Section 3.02.          Subservicing Agreements Between Master Servicer and Subservicers;

                               Enforcement of Subservicers' Obligations..........................................2

 

         Section 3.03.          Successor Subservicers............................................................2

 

         Section 3.04.          Liability of the Master Servicer..................................................2

 

         Section 3.05.          No Contractual Relationship Between Subservicer and Trustee or

                               Certificateholders................................................................2

 

         Section 3.06.          Assumption or Termination of Subservicing Agreements by Trustee...................2

 

         Section 3.07.          Collection of Certain Mortgage Loan Payments; Deposits to Custodial

                               Account...........................................................................2

 

         Section 3.08.          Subservicing Accounts; Servicing Accounts.........................................2

 

         Section 3.09.          Access to Certain Documentation and Information Regarding the Mortgage

                               Loans.............................................................................2

 

         Section 3.10.          Permitted Withdrawals from the Custodial Account..................................2

 

         Section 3.11.          Maintenance of Primary Insurance Coverage.........................................2

 

         Section 3.12.          Maintenance of Fire Insurance and Omissions and Fidelity Coverage.................2

 

          Section 3.13.          Enforcement of Due-on-Sale Clauses; Assumption and Modification

                               Agreements; Certain Assignments...................................................2

 

         Section 3.14.          Realization Upon Defaulted Mortgage Loans.........................................2

 

         Section 3.15.          Trustee to Cooperate; Release of Mortgage Files...................................2

 

         Section 3.16.          Servicing and Other Compensation; Compensating Interest...........................2

 

         Section 3.17.          Reports to the Trustee and the Depositor..........................................2

 

         Section 3.18.          Annual Statement as to Compliance.................................................2

 

         Section 3.19.          Annual Independent Public Accountants' Servicing Report...........................2

 

         Section 3.20.          Right of the Depositor in Respect of the Master Servicer..........................2

 

          Section 3.21.          [Reserved]........................................................................2

 

         Section 3.22.          Advance Facility..................................................................2

 

ARTICLE IV PAYMENTS TO CERTIFICATEHOLDERS........................................................................2

 

         Section 4.01.          Certificate Account...............................................................2

 

         Section 4.02.          Distributions.....................................................................2

 

         Section 4.03.          Statements to Certificateholders; Statements to Rating Agencies; Exchange

                               Act Reporting.....................................................................2

 

         Section 4.04.          Distribution of Reports to the Trustee and the Depositor; Advances by the

                               Master Servicer...................................................................2

 

          Section 4.05.          Allocation of Realized Losses.....................................................2

 

         Section 4.06.          Reports of Foreclosures and Abandonment of Mortgaged Property.....................2

 

         Section 4.07.           Optional Purchase of Defaulted Mortgage Loans.....................................2

 

         Section 4.08.          Limited Mortgage Loan Repurchase Right............................................2

 

         Section 4.09.          Derivative Contracts..............................................................2

 

         Section 4.10.          Yield Maintenance Agreement.......................................................2

 

ARTICLE V THE CERTIFICATES.......................................................................................2

 

         Section 5.01.          The Certificates..................................................................2

 

         Section 5.02.          Registration of Transfer and Exchange of Certificates.............................2

 

         Section 5.03.          Mutilated, Destroyed, Lost or Stolen Certificates.................................2

 

         Section 5.04.          Persons Deemed Owners.............................................................2

 

          Section 5.05.          Appointment of Paying Agent.......................................................2

 

ARTICLE VI THE DEPOSITOR AND THE MASTER SERVICER.................................................................2

 

         Section 6.01.          Respective Liabilities of the Depositor and the Master Servicer...................2

 

         Section 6.02.          Merger or Consolidation of the Depositor or the Master Servicer;

                               Assignment of Rights and Delegation of Duties by Master Servicer..................2

 

         Section 6.03.          Limitation on Liability of the Depositor, the Master Servicer and Others..........2

 

         Section 6.04.          Depositor and Master Servicer Not to Resign.......................................2

 

ARTICLE VII DEFAULT..............................................................................................2

 

         Section 7.01.          Events of Default.................................................................2

 

          Section 7.02.          Trustee or Depositor to Act; Appointment of Successor.............................2

 

         Section 7.03.          Notification to Certificateholders................................................2

 

         Section 7.04.           Waiver of Events of Default.......................................................2

 

ARTICLE VIII CONCERNING THE TRUSTEE..............................................................................2

 

         Section 8.01.          Duties of Trustee.................................................................2

 

         Section 8.02.          Certain Matters Affecting the Trustee.............................................2

 

         Section 8.03.          Trustee Not Liable for Certificates or Mortgage Loans.............................2

 

         Section 8.04.          Trustee May Own Certificates......................................................2

 

         Section 8.05.          Master Servicer to Pay Trustee's Fees and Expenses; Indemnification...............2

 

         Section 8.06.          Eligibility Requirements for Trustee..............................................2

 

         Section 8.07.          Resignation and Removal of the Trustee............................................2

 

         Section 8.08.          Successor Trustee.................................................................2

 

         Section 8.09.          Merger or Consolidation of Trustee................................................2

 

         Section 8.10.          Appointment of Co-Trustee or Separate Trustee.....................................2

 

         Section 8.11.          Appointment of Custodians.........................................................2

 

         Section 8.12.          Appointment of Office or Agency...................................................2

 

         Section 8.13.          DTC Letter of Representations.....................................................2

 

         Section 8.14.          Yield Maintenance Agreement.......................................................2

 

ARTICLE IX TERMINATION...........................................................................................2

 

         Section 9.01.          Termination Upon Purchase or Liquidation of All Mortgage Loans....................2

 

         Section 9.02.          Additional Termination Requirements...............................................2

 

ARTICLE X REMIC PROVISIONS.......................................................................................2

 

         Section 10.01.         REMIC Administration..............................................................2

 

         Section 10.02.         Master Servicer, REMIC Administrator and Trustee Indemnification..................2

 

ARTICLE XI MISCELLANEOUS PROVISIONS..............................................................................2

 

         Section 11.01.         Amendment.........................................................................2

 

         Section 11.02.         Recordation of Agreement; Counterparts............................................2

 

         Section 11.03.         Limitation on Rights of Certificateholders........................................2

 

         Section 11.04.         Governing Law.....................................................................2

 

         Section 11.05.         Notices...........................................................................2

 

         Section 11.06.         Notices to Rating Agencies........................................................2

 

         Section 11.07.         Severability of Provisions........................................................2

 

         Section 11.08.         Supplemental Provisions for Resecuritization......................................2

 

         Section 11.09.         Third-Party Beneficiary...........................................................2

 

 

 

Exhibit A          Form of Class A Certificate..................................................................A-1

 

Exhibit B          Form of Class M Certificate..................................................................B-1

Exhibit C          Form of Class SB Certificate.................................................................C-1

 

Exhibit D          Form of Class R Certificate..................................................................D-1

 

Exhibit E          Form of Custodial Agreement..................................................................E-1

 

Exhibit F          Loan Schedule................................................................................F-1

 

Exhibit G          Form of Request for Release..................................................................G-1

 

Exhibit H-1        Form of Transfer Affidavit and Agreement...................................................H-1-1

 

Exhibit H-2        Form of Transferor Certificate.............................................................H-2-1

 

Exhibit I          Form of Investor Representation Letter.......................................................I-1

 

Exhibit J          Form of Transferor Representation Letter.....................................................J-1

 

Exhibit K          Text of Amendment to Pooling and Servicing Agreement Pursuant to

                  Section 11.01(e) for a Limited Guaranty......................................................K-1

 

Exhibit L          Form of Limited Guaranty.....................................................................L-1

 

Exhibit M          Form of Lender Certification for Assignment of Mortgage Loan.................................M-1

 

Exhibit N          Form of Rule 144A Investment Representation..................................................N-1

 

Exhibit O          [Reserved]...................................................................................O-1

 

Exhibit P          Form of ERISA Letter.........................................................................P-1

 

Exhibit Q          [Reserved]...................................................................................Q-1

 

Exhibit R          Assignment Agreement........................................................................R-1

 

Exhibit S          [Reserved]...................................................................................S-1

 

Exhibit T-1        Form of 10-K Certification.................................................................T-1-1

 

Exhibit T-2        Form of Back-Up Certification..............................................................T-2-1

 

Exhibit U          Information to be Provided by the Master Servicer to the Rating Agencies Relating to

                  Reportable Modified Mortgage Loans...........................................................U-1

 

</TABLE>

 

 

 

 

<PAGE>

 

 

 

         This Pooling and Servicing Agreement, effective as of November 1, 2005,

among RESIDENTIAL ASSET SECURITIES CORPORATION,   as the depositor (together with

its permitted   successors and assigns,   the   "Depositor"),   RESIDENTIAL   FUNDING

CORPORATION,   as master   servicer   (together   with its permitted   successors and

assigns, the "Master Servicer"),   and U.S. BANK NATIONAL ASSOCIATION,   a banking

association   organized under the laws of the United States, as trustee (together

with its permitted successors and assigns, the "Trustee").

 

                             PRELIMINARY STATEMENT:

 

         The   Depositor   intends   to   sell   mortgage   asset-backed   pass-through

certificates   (collectively,   the   "Certificates"),   to be issued   hereunder   in

fifteen   Classes,   which in the aggregate   will   evidence the entire   beneficial

ownership   interest in the Mortgage Loans (as defined   herein) and certain other

related assets.

 

                                     REMIC I

 

         As provided herein,   the REMIC   Administrator   will make an election to

treat the segregated pool of assets consisting of the Mortgage Loans and certain

other related assets (exclusive of the Yield Maintenance   Agreement)   subject to

this   Agreement   as a real estate   mortgage   investment   conduit (a "REMIC") for

federal   income   tax   purposes,   and   such   segregated   pool of   assets   will be

designated   as "REMIC I." The Class R-I   Certificates   will   represent   the sole

Class of "residual   interests"   in REMIC I for purposes of the REMIC   Provisions

(as   defined    herein)   under   federal   income   tax   law.   The   following   table

irrevocably   sets forth the   designation,   remittance rate (the   "Uncertificated

REMIC I Pass-Through   Rate") and initial   Uncertificated   Principal   Balance for

each of the "regular   interests"   in REMIC I (the "REMIC I Regular   Interests").

The   "latest   possible   maturity   date"   (determined    solely   for   purposes   of

satisfying   Treasury   regulation Section   1.860G-1(a)(4)(iii))   for each REMIC I

Regular   Interest   shall   be the   Maturity   Date.   None of the   REMIC I   Regular

Interests will be certificated.

<TABLE>

<CAPTION>

 

                      UNCERTIFICATED REMIC I

                     ------------------------         INITIAL UNCERTIFICATED REMIC I             LATEST POSSIBLE

   DESIGNATION            PASS-THROUGH RATE                  PRINCIPAL BALANCE                     MATURITY DATE

<S>        <C>                        <C>                     <C>                                           <C> <C>

       LT-1                  Variable(1)                     $514,918,943.19                      November 25, 2035

       LT-2                  Variable(1)                 $          21,153.44                      November 25, 2035

       LT-3                     0.00%                    $          30,346.64                      November 25, 2035

       LT-4                   Variable(1)                 $          30,346.64                      November 25, 2035

</TABLE>

 

_______________

(1)   Calculated   as   provided   in   the   definition   of   Uncertificated   REMIC   I

Pass-Through Rate.

 

                                    REMIC II

 

         As provided herein,   the REMIC   Administrator   will make an election to

treat the segregated pool of assets   consisting of the REMIC I Regular Interests

as a REMIC for federal income tax purposes,   and such   segregated pool of assets

will be designated as REMIC II. The Class R-II   Certificates   will represent the

sole   Class   of   "residual   interests"   in REMIC II for   purposes   of the   REMIC

Provisions   under federal income tax law. The following table   irrevocably   sets

forth   the   designation,    Pass-Through   Rate,    aggregate   Initial   Certificate

Principal Balance,   certain features, month of Final Scheduled Distribution Date

and initial   ratings for each Class of   Certificates   comprising   the   interests

representing   "regular   interests"   in REMIC II. The "latest   possible   maturity

date" (determined solely for purposes of satisfying   Treasury Regulation Section

1.860G-1(a)(4)(iii))   for each Class of REMIC II Regular   Interests shall be the

Maturity Date.

<TABLE>

<CAPTION>

 

                                                                                           MONTH OF

                                                                                            FINAL

                                            AGGREGATE INITIAL                               SCHEDULED

                             PASS-THROUGH       CERTIFICATE                               DISTRIBUTION

  DESIGNATION        TYPE           RATE        PRINCIPAL BALANCE          FEATURES               DATE

                                                                                                          S&P      Moody's

<S>        <C>           <C>             <C>    <C>                                                <C>                     

  Class A-1      Regular(1)   Adjustable(2)(3)$   180,242,000.00      Senior/Adjustable        May 2023        AAA        Aaa

                                                                        Rate

  Class A-2      Regular(1)   Adjustable(2)(3)$   196,158,000.00      Senior/Adjustable      January 2035      AAA        Aaa

                                                                        Rate

  Class A-3      Regular(1)   Adjustable(2)(3)$     15,000,000.00     Senior/Adjustable      November 2035     AAA        Aaa

                                                                         Rate

  Class M-1      Regular(1)   Adjustable(2)(3)$     20,600,000.00   Mezzanine/Adjustable     November 2035     AA+        Aa1

                                                                        Rate

  Class M-2      Regular(1)   Adjustable(2)(3)$     18,540,000.00   Mezzanine/Adjustable     November 2035     AA+        Aa2

                                                                        Rate

  Class M-3      Regular(1)   Adjustable(2)(3)$     12,875,000.00   Mezzanine/Adjustable     November 2035     AA+        Aa3

                                                                        Rate

  Class M-4      Regular(1)   Adjustable(2)(3)$                    Mezzanine/Adjustable     November 2035      AA        A1

                                                  9,012,000.00            Rate

  Class M-5      Regular(1)   Adjustable(2)(3)$                    Mezzanine/Adjustable     November 2035      AA        A2

                                                 9,528,000.00            Rate

  Class M-6       Regular(1)   Adjustable(2)(3)$                    Mezzanine/Adjustable     November 2035     AA-        A3

                                                 8,240,000.00            Rate

  Class M-7      Regular(1)   Adjustable(2)(3)$                    Mezzanine/Adjustable     November 2035      A        Baa1

                                                 8,755,000.00            Rate

  Class M-8      Regular(1)   Adjustable(2)(3)$                    Mezzanine/Adjustable     November 2035      A-       Baa2

                                                  6,437,000.00            Rate

  Class M-9      Regular(1)   Adjustable(2)(3)$                    Mezzanine/Adjustable     November 2035     BBB+      Baa3

                                                 7,210,000.00            Rate

   Class SB      Regular           (4)         $     22,403,789.90        Subordinate         November 2035     N/R        N/R

                   (4)

</TABLE>

 

_______________

(1)   The Class A and Class M Certificates   will represent   ownership of REMIC II

     Regular Interests   together with certain rights to payments to be made from

     amounts received under the Yield Maintenance Agreement which will be deemed

     made for federal   income tax purposes   outside of REMIC II by the holder of

     the Class SB Certificates as the owner of the Yield Maintenance Agreement.

(2)   The REMIC II Regular   Interests   ownership of which is   represented   by the

     Class A and Class M Certificates,   will accrue interest at a per annum rate

     equal to the   lesser of (i) LIBOR plus the   applicable   Margin and (ii) the

     Net   WAC Cap   Rate   and   the   provisions   for the   payment   of   Basis   Risk

     Shortfalls   herein,   which payments will not be part of the   entitlement of

     the REMIC II Regular Interests related to such Certificates.

(3)   The Class A and Class M   Certificates   will also entitle   their   holders to

     certain payments from the Holder of the Class SB Certificates   from amounts

     to which the related REMIC II Regular Interest is entitled and from amounts

     received under the Yield Maintenance Agreement, which will not be a part of

     their ownership of the REMIC II Regular Interests.

(4)   The   Class   SB   Certificates   will   accrue   interest   as   described   in the

     definition of Accrued Certificate Interest.   The Class SB Certificates will

     not accrue interest on their Certificate   Principal   Balance.   The Class SB

     Certificates will represent ownership of two REMIC II Regular Interests,   a

     principal only regular interest   designated REMIC II Regular Interest SB-PO

     and an interest only regular interest   designated REMIC II Regular Interest

     SB-IO,   which will be entitled to   distributions   as set forth herein.   The

     rights of the   Holder of the Class SB   Certificates   to   payments   from the

     Yield   Maintenance   Agreement   shall be   outside   and apart from its rights

     under the REMIC II Regular Interests SB-IO and SB-PO.

 

         In   consideration   of   the   mutual   agreements   herein   contained,   the

Depositor, the Master Servicer and the Trustee agree as follows:

 

ARTICLE I

 

                                   DEFINITIONS

 

Section 1.01......Definitions.

 

         Whenever   used in this   Agreement,   the   following   words and   phrases,

unless the context otherwise requires, shall have the meanings specified in this

Article.

 

         Accrued   Certificate   Interest:   With respect to each Distribution Date

and each   Class of   Class A   Certificates   and   Class M   Certificates,   interest

accrued during the related Interest Accrual Period on the Certificate   Principal

Balance thereof   immediately prior to such Distribution Date at the Pass-Through

Rate for that Distribution Date.

 

         The   amount   of   Accrued    Certificate    Interest    on   each   Class   of

Certificates shall be reduced by the amount of Prepayment Interest Shortfalls on

the related   Mortgage   Loans during the prior   calendar   month to the extent not

covered by   Compensating   Interest   pursuant to Section 3.16,   and by Relief Act

Shortfalls on the related Mortgage Loans during the related Due Period. All such

reductions   with respect to the related   Mortgage Loans will be allocated   among

the   Certificates   in proportion to the amount of Accrued   Certificate   Interest

payable on such Certificates on such Distribution Date absent such reductions.

 

         Accrued Certificate Interest for any Distribution Date shall further be

reduced by the   interest   portion of Realized   Losses   allocated to any Class of

Certificates pursuant to Section 4.05.

 

         Accrued   Certificate   Interest   shall   accrue on the basis of a 360-day

year and the actual number of days in the related Interest Accrual Period.

 

         With respect to each   Distribution   Date and the Class SB Certificates,

interest    accrued   during   the   preceding    Interest    Accrual   Period   at   the

Pass-Through   Rate on the   Notional   Amount as specified   in the   definition   of

Pass-Through   Rate,   immediately prior to such Distribution Date, reduced by any

interest   shortfalls   with respect to the Mortgage Loans,   including   Prepayment

Interest Shortfalls to the extent not covered by Compensating   Interest pursuant

to Section 3.16 or by Excess Cash Flow pursuant to Section   4.02(c)(v) and (vi).

Accrued   Certificate   Interest on the Class SB Certificates   shall accrue on the

basis of a 360-day   year and the actual   number of days in the related   Interest

Accrual Period.

 

         Adjusted   Mortgage Rate: With respect to any Mortgage Loan and any date

of determination, the Mortgage Rate borne by the related Mortgage Note, less the

rate at which the related Subservicing Fee accrues.

 

         Adjustment   Date: With respect to each   adjustable-rate   Mortgage Loan,

each date set forth in the related   Mortgage   Note on which an adjustment to the

interest rate on such Mortgage Loan becomes effective.

 

         Advance:   With   respect to any Mortgage   Loan,   any advance made by the

Master Servicer, pursuant to Section 4.04.

 

         Affiliate:   With respect to any Person,   any other Person   controlling,

controlled by or under common   control with such first   Person.   For purposes of

this definition, "control" 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.

 

         Agreement:   This Pooling and   Servicing   Agreement   and all   amendments

hereof and supplements hereto.

 

         Amount Held for Future   Distribution:   With respect to any Distribution

Date,   the total of the amounts   held in the   Custodial   Account at the close of

business   on the   preceding   Determination   Date on account   of (i)   Liquidation

Proceeds,   Subsequent Recoveries,   Insurance Proceeds,   REO Proceeds,   Principal

Prepayments,   Mortgage Loan purchases made pursuant to Section 2.02,   2.03, 2.04

or 4.07 and Mortgage   Loan   substitutions   made pursuant to Section 2.03 or 2.04

received   or made in the   month   of such   Distribution   Date   (other   than   such

Liquidation Proceeds,   Subsequent   Recoveries,   Insurance Proceeds, REO Proceeds

and purchases of Mortgage Loans that the Master Servicer has deemed to have been

received in the   preceding   month in accordance   with Section   3.07(b)) and (ii)

payments which   represent   early receipt of scheduled   payments of principal and

interest   due on a date or dates   subsequent   to the Due Date in the related Due

Period.

 

         Appraised Value: With respect to any Mortgaged Property,   the lesser of

(i) the appraised value of such Mortgaged Property based upon the appraisal made

at the time of the origination of the related   Mortgage Loan, and (ii) the sales

price of the Mortgaged Property at such time of origination,   except in the case

of a Mortgaged   Property   securing a refinanced or modified   Mortgage Loan as to

which it is either the appraised value based upon the appraisal made at the time

of   origination   of the loan which was   refinanced   or modified or the appraised

value determined in an appraisal at the time of refinancing or modification,   as

the case may be.

 

         Assignment:   An   assignment   of the   Mortgage,   notice of   transfer   or

equivalent   instrument,   in recordable   form,   sufficient   under the laws of the

jurisdiction   wherein   the related   Mortgaged   Property is located to reflect of

record   the   sale   of the   Mortgage   Loan to the   Trustee   for   the   benefit   of

Certificateholders,    which    assignment,    notice   of   transfer   or   equivalent

instrument   may be in the   form   of one or   more   blanket   assignments   covering

Mortgages   secured   by   Mortgaged   Properties   located   in the same   county,   if

permitted by law and accompanied by an Opinion of Counsel to that effect.

 

         Assignment Agreement:   The Assignment and Assumption   Agreement,   dated

the Closing Date, between   Residential Funding and the Depositor relating to the

transfer and assignment of the Mortgage Loans, attached hereto as Exhibit R.

 

         Available   Distribution   Amount: With respect to any Distribution Date,

an amount equal to (a) the sum of (i) the amount   relating to the Mortgage Loans

on   deposit   in   the   Custodial   Account   as of the   close   of   business   on the

immediately preceding   Determination Date, including any Subsequent   Recoveries,

and   amounts    deposited   in   the   Custodial   Account   in   connection   with   the

substitution   of Qualified   Substitute   Mortgage   Loans,   (ii) the amount of any

Advance made on the immediately   preceding Certificate Account Deposit Date with

respect to the Mortgage   Loans,   (iii) any amount   deposited in the   Certificate

Account on the related   Certificate   Account Deposit Date pursuant to the second

paragraph of Section 3.12(a) in respect of the Mortgage   Loans,   (iv) any amount

that the Master Servicer is not permitted to withdraw from the Custodial Account

pursuant to Section 3.16(e) in respect of the Mortgage Loans, and (v) any amount

deposited in the Certificate Account pursuant to Section 4.07 or 9.01 in respect

of the Mortgage Loans, reduced by (b) the sum as of the close of business on the

immediately   preceding   Determination   Date of (x) the   Amount   Held for   Future

Distribution with respect to the Mortgage Loans, and (y) amounts permitted to be

withdrawn by the Master   Servicer from the   Custodial   Account in respect of the

Mortgage Loans pursuant to clauses (ii)-(x), inclusive, of Section 3.10(a).

 

         Balloon   Loan:   Each of the Mortgage   Loans having an original   term to

maturity that is shorter than the related amortization term.

 

         Balloon Payment:   With respect to any Balloon Loan, the related Monthly

Payment payable on the stated maturity date of such Balloon Loan.

 

         Bankruptcy Code:   The Bankruptcy Code of 1978, as amended.

 

         Basis   Risk   Shortfalls:   With   respect   to each   Class of the   Class A

Certificates and Class M Certificates, and any Distribution Date, the sum of (a)

with respect to any   Distribution   Date on which the Net WAC Cap Rate is used to

determine the Pass-Through   Rate of such Class, an amount equal to the excess of

(x) Accrued   Certificate   Interest for such Class calculated at a per annum rate

equal to LIBOR plus the related Margin for such   Distribution   Date (which shall

not exceed 14.000% per annum),   over (y) Accrued   Certificate   Interest for such

Class   calculated   using the Net WAC Cap Rate, (b) any shortfalls for such Class

calculated pursuant to clause (a) above remaining unpaid from prior Distribution

Dates,   and (c) one   month's   interest on the amount in clause (b) (based on the

number of days in the   preceding   Interest   Accrual   Period) at a per annum rate

equal to LIBOR plus the related Margin for such   Distribution   Date (which shall

not exceed 14.000% per annum).

 

         Book-Entry   Certificate:   Any Certificate registered in the name of the

Depository or its nominee.

 

         Business   Day:   Any day other than (i) a Saturday or a Sunday or (ii) a

day on which   banking   institutions   in the   State of   California,   the State of

Minnesota,   the State of Texas,   the State of New York or the State of   Illinois

(and   such   other   state   or   states   in   which   the   Custodial   Account   or the

Certificate   Account are at the time   located) are required or authorized by law

or executive order to be closed.

 

         Capitalization   Reimbursement   Amount: With respect to any Distribution

Date, the amount of Advances or Servicing Advances that were added to the Stated

Principal   Balance of the   Mortgage   Loans during the prior   calendar   month and

reimbursed   to   the   Master    Servicer   or   Subservicer   on   or   prior   to   such

Distribution Date pursuant to Section 3.10(a)(vii).

 

         Cash   Liquidation:   With respect to any   defaulted   Mortgage Loan other

than a Mortgage Loan as to which an REO Acquisition occurred, a determination by

the Master   Servicer   that it has received all Insurance   Proceeds,   Liquidation

Proceeds   and   other   payments   or cash   recoveries   which the   Master   Servicer

reasonably and in good faith expects to be finally   recoverable   with respect to

such Mortgage Loan.

 

         Certificate:   Any Class A Certificate,   Class M   Certificate,   Class SB

Certificate or Class R Certificate.

 

         Certificate   Account:   The account or accounts   created and   maintained

pursuant   to   Section   4.01,    which   shall   be   entitled   "U.S.   Bank   National

Association,   as trustee,   in trust for the   registered   holders of   Residential

Asset Securities   Corporation,   Home Equity Mortgage   Asset-Backed   Pass-Through

Certificates,   Series 2005-EMX4" and which account shall be held for the benefit

of the Certificateholders and which must be an Eligible Account.

 

         Certificate   Account   Deposit   Date:   With respect to any   Distribution

Date, the Business Day prior thereto.

 

         Certificateholder   or Holder: The Person in whose name a Certificate is

registered   in the   Certificate   Register,   except that   neither a   Disqualified

Organization   nor a   Non-United   States   Person   shall be a holder   of a Class R

Certificate for any purpose hereof. Solely for the purpose of giving any consent

or direction pursuant to this Agreement,   any Certificate,   other than a Class R

Certificate, registered in the name of the Depositor, the Master Servicer or any

Subservicer or any Affiliate   thereof shall be deemed not to be outstanding   and

the Percentage   Interest or Voting Rights   evidenced   thereby shall not be taken

into account in determining whether the requisite amount of Percentage Interests

or Voting   Rights   necessary to effect any such   consent or   direction   has been

obtained.   All   references   herein to   "Holders" or   "Certificateholders"   shall

reflect the rights of Certificate   Owners as they may   indirectly   exercise such

rights through the   Depository   and   participating   members   thereof,   except as

otherwise   specified   herein;   provided,   however,   that   the   Trustee   shall be

required to   recognize as a "Holder" or   "Certificateholder"   only the Person in

whose name a   Certificate   is   registered in the   Certificate   Register.   Unless

otherwise indicated in this Agreement, the Custodial Agreement or the Assignment

Agreement,   whenever   reference   is made to the actions   taken by the Trustee on

behalf of the Certificateholders.

 

         Certificate Owner: With respect to a Book-Entry Certificate, the Person

who is the beneficial owner of such Certificate, as reflected on the books of an

indirect participating brokerage firm for which a Depository Participant acts as

agent, if any, and otherwise on the books of a Depository   Participant,   if any,

and otherwise on the books of the Depository.

 

         Certificate   Principal Balance: With respect to any Class A Certificate

or Class M Certificate, on any date of determination, an amount equal to (i) the

Initial   Certificate   Principal   Balance of such Certificate as specified on the

face thereof,   minus (ii) the sum of (x) the aggregate of all amounts previously

distributed   with respect to such   Certificate (or any predecessor   Certificate)

and applied to reduce the   Certificate   Principal   Balance   thereof   pursuant to

Section 4.02(c) and (y) the aggregate of all reductions in Certificate Principal

Balance   deemed to have occurred in connection   with Realized   Losses which were

previously   allocated   to   such   Certificate   (or any   predecessor   Certificate)

pursuant to Section 4.05; provided,   that with respect to any Distribution Date,

the   Certificate    Principal   Balance   of   any   outstanding   Class   of   Class   A

Certificates and Class M Certificates (with respect to the Class A Certificates,

on a pro rata basis based on the amount of Realized   Loss   previously   allocated

thereto and   remaining   unreimbursed)   to which a Realized   Loss was   previously

allocated and remains unreimbursed will be increased,   to the extent of Realized

Losses previously allocated thereto and remaining unreimbursed,   but only to the

extent of Subsequent   Recoveries   received during the preceding   calendar month.

With   respect   to any Class SB   Certificate,   on any date of   determination,   an

amount   equal   to   the   Percentage    Interest   evidenced   by   such   Certificate,

multiplied   by an   amount   equal   to (i) the   excess,   if any,   of (A) the   then

aggregate   Stated   Principal   Balance   of the   Mortgage   Loans over (B) the then

aggregate   Certificate Principal Balance of the Class A Certificates and Class M

Certificates   then   outstanding,   which   represents   the sum of (i) the   Initial

Principal Balance of the REMIC II Regular Interest SB-PO, as reduced by Realized

Losses allocated thereto and payments deemed made thereon,   and (ii) accrued and

unpaid   interest on the REMIC II Regular   Interest SB-IO, as reduced by Realized

Losses allocated   thereto.   The Class R Certificates will not have a Certificate

Principal Balance.

 

         Certificate Register and Certificate Registrar: The register maintained

and the registrar appointed pursuant to Section 5.02.

 

         Class:    Collectively,    all   of   the   Certificates   or   uncertificated

interests bearing the same designation.

 

         Class A Certificates:   Collectively, the Class A-1 Certificates,   Class

A-2 Certificates and Class A-3 Certificates.

 

         Class A Principal Distribution Amount: With respect to any Distribution

Date   (a)   prior to the   Stepdown   Date or on or after   the   Stepdown   Date if a

Trigger   Event   is   in   effect   for   that    Distribution    Date,   the   Principal

Distribution   Amount for that   Distribution Date or (b) on or after the Stepdown

Date if a Trigger Event is not in effect for that Distribution   Date, the lesser

of:

 

(i)            the Principal Distribution Amount for that Distribution Date; and

 

(ii)           the excess,   if any, of (A) the   aggregate   Certificate   Principal

              Balance   of the   Class A   Certificates   immediately   prior to that

              Distribution   Date over (B) the   lesser of (x) the   product of (1)

              the   applicable   Subordination   Percentage   and (2) the   aggregate

              Stated Principal Balance of the Mortgage Loans after giving effect

              to distributions to be made on that   Distribution Date and (y) the

              excess,   if any, of the aggregate Stated Principal   Balance of the

              Mortgage Loans after giving effect to   distributions to be made on

              that Distribution Date, over the Overcollateralization Floor.

 

         Class A-1 Certificate:   Any one of the Class A-1 Certificates   executed

by the Trustee and authenticated by the Certificate   Registrar   substantially in

the form annexed hereto as Exhibit A, senior to the Class M Certificates,   Class

SB Certificates and Class R Certificates   with respect to distributions   and the

allocation of Realized   Losses as set forth in Section 4.05,   and   evidencing an

interest   designated   as a "regular   interest"   in REMIC II for   purposes of the

REMIC Provisions.

 

          Class A-1 Margin:   0.110% per annum.

 

         Class A-2 Certificate:   Any one of the Class A-2 Certificates   executed

by the Trustee and authenticated by the Certificate   Registrar   substantially in

the form annexed hereto as Exhibit A, senior to the Class M Certificates,   Class

SB Certificates and Class R Certificates   with respect to distributions   and the

allocation of Realized   Losses as set forth in Section 4.05,   and   evidencing an

interest   designated   as a "regular   interest"   in REMIC II for   purposes of the

REMIC Provisions.

 

         Class A-2 Margin: Initially,   0.260% per annum, and on any Distribution

Date on and after the second Distribution Date after the first possible Optional

Termination Date, 0.520% per annum.

 

         Class A-3 Certificate:   Any one of the Class A-3 Certificates   executed

by the Trustee and authenticated by the Certificate   Registrar   substantially in

the form annexed hereto as Exhibit A, senior to the Class M Certificates,   Class

SB Certificates and Class R Certificates   with respect to distributions   and the

allocation of Realized   Losses as set forth in Section 4.05,   and   evidencing an

interest   designated   as a "regular   interest"   in REMIC III for purposes of the

REMIC Provisions.

 

         Class A-3 Margin: Initially,   0.340% per annum, and on any Distribution

Date on and after the second Distribution Date after the first possible Optional

Termination Date, 0.680% per annum.

 

         Class M Certificates:   Collectively, the Class M-1 Certificates,   Class

M-2   Certificates,   Class M-3 Certificates,   Class M-4   Certificates,   Class M-5

Certificates,    Class   M-6   Certificates,   Class   M-7   Certificates,   Class   M-8

Certificates and Class M-9 Certificates.

 

         Class M-1 Certificate:   Any one of the Class M-1 Certificates   executed

by the Trustee and authenticated by the Certificate   Registrar   substantially in

the form annexed hereto as Exhibit B, and evidencing (i) an interest   designated

as a "regular   interest"   in REMIC II for purposes of the REMIC   Provisions   and

(ii) the right to receive payments under the Yield Maintenance Agreement.

 

         Class M-1 Margin: Initially,   0.430% per annum, and on any Distribution

Date on and after the second Distribution Date after the first possible Optional

Termination Date, 0.645% per annum.

 

         Class   M-1   Principal    Distribution    Amount:    With   respect   to   any

Distribution   Date (a) prior to the   Stepdown   Date or on or after the   Stepdown

Date if a Trigger Event is in effect for that   Distribution   Date, the remaining

Principal   Distribution   Amount for that Distribution Date after distribution of

the Class A Principal   Distribution   Amount or (b) on or after the Stepdown Date

if a Trigger Event is not in effect for that Distribution Date, the lesser of:

 

(i)       the remaining Principal   Distribution Amount for that Distribution Date

         after distribution of the Class A Principal Distribution Amount; and

 

(ii)      the   excess,   if any, of (A) the sum of (1) the   aggregate   Certificate

         Principal   Balance   of the   Class A   Certificates   (after   taking   into

         account the payment of the Class A   Principal   Distribution   Amount for

         that   Distribution   Date) and (2) the Certificate   Principal Balance of

         the Class M-1 Certificates   immediately prior to that Distribution Date

         over   (B)   the   lesser   of   (x)   the   product   of   (1)   the   applicable

         Subordination Percentage and (2) the aggregate Stated Principal Balance

         of the Mortgage Loans after giving effect to   distributions   to be made

         on that   Distribution Date and (y) the excess, if any, of the aggregate

         Stated   Principal   Balance of the Mortgage Loans after giving effect to

         distributions   to   be   made   on   that    Distribution    Date,   over   the

         Overcollateralization Floor.

 

         Class M-2 Certificate:   Any one of the Class M-2 Certificates   executed

by the Trustee and authenticated by the Certificate   Registrar   substantially in

the form annexed hereto as Exhibit B, and evidencing (i) an interest   designated

as a "regular   interest"   in REMIC II for purposes of the REMIC   Provisions   and

(ii) the right to receive payments under the Yield Maintenance Agreement.

 

         Class M-2 Margin: Initially,   0.440% per annum, and on any Distribution

Date on and after the second Distribution Date after the first possible Optional

Termination Date, 0.660% per annum.

 

         Class   M-2   Principal    Distribution    Amount:    With   respect   to   any

Distribution   Date (a) prior to the   Stepdown   Date or on or after the   Stepdown

Date if a Trigger Event is in effect for that   Distribution   Date, the remaining

Principal   Distribution   Amount for that Distribution Date after distribution of

the   Class   A   Principal    Distribution   Amount   and   the   Class   M-1   Principal

Distribution   Amount or (b) on or after the Stepdown   Date if a Trigger Event is

not in effect for that Distribution Date, the lesser of:

 

(i)       the remaining Principal   Distribution Amount for that Distribution Date

         after distribution of the Class A Principal Distribution Amount and the

         Class M-1 Principal Distribution Amount; and

 

(ii)      the   excess,   if any, of (A) the sum of (1) the   aggregate   Certificate

         Principal    Balance   of   the   Class   A    Certificates    and   Class   M-1

         Certificates   (after   taking   into   account   the payment of the Class A

         Principal   Distribution Amount and the Class M-1 Principal Distribution

         Amount for that   Distribution   Date) and (2) the Certificate   Principal

         Balance   of the   Class   M-2   Certificates   immediately   prior   to   that

         Distribution   Date over (B) the   lesser of (x) the   product   of (1) the

         applicable   Subordination   Percentage   and   (2)   the   aggregate   Stated

         Principal   Balance   of   the   Mortgage   Loans   after   giving   effect   to

         distributions to be made on that   Distribution Date and (y) the excess,

         if any, of the aggregate Stated Principal Balance of the Mortgage Loans

         after giving effect to   distributions   to be made on that   Distribution

         Date, over the Overcollateralization Floor.

 

         Class M-3 Certificate:   Any one of the Class M-3 Certificates   executed

by the Trustee and authenticated by the Certificate   Registrar   substantially in

the form annexed hereto as Exhibit B, and evidencing (i) an interest   designated

as a "regular   interest"   in REMIC II for purposes of the REMIC   Provisions   and

(ii) the right to receive payments under the Yield Maintenance Agreement.

 

         Class M-3 Margin: Initially,   0.460% per annum, and on any Distribution

Date on and after the second Distribution Date after the first possible Optional

Termination Date, 0.690% per annum.

 

         Class   M-3   Principal    Distribution    Amount:    With   respect   to   any

Distribution   Date (a) prior to the   Stepdown   Date or on or after the   Stepdown

Date if a Trigger Event is in effect for that   Distribution   Date, the remaining

Principal   Distribution   Amount for that Distribution Date after distribution of

the Class A Principal   Distribution Amount, the Class M-1 Principal Distribution

Amount and the Class M-2   Principal   Distribution   Amount or (b) on or after the

Stepdown   Date if a Trigger Event is not in effect for that   Distribution   Date,

the lesser of:

 

(i)       the remaining Principal   Distribution Amount for that Distribution Date

         after   distribution of the Class A Principal   Distribution   Amount, the

         Class M-1   Principal   Distribution   Amount and the Class M-2   Principal

         Distribution Amount; and

 

(ii)      the   excess,   if any, of (A) the sum of (1) the   aggregate   Certificate

         Principal   Balance of the Class A Certificates,   Class M-1 Certificates

         and Class M-2   Certificates   (after   taking into account the payment of

         the Class A   Principal   Distribution   Amount,   the Class M-1   Principal

         Distribution Amount and the Class M-2 Principal Distribution Amount for

         that   Distribution   Date) and (2) the Certificate   Principal Balance of

         the Class M-3 Certificates   immediately prior to that Distribution Date

         over   (B)   the   lesser   of   (x)   the   product   of   (1)   the   applicable

         Subordination Percentage and (2) the aggregate Stated Principal Balance

         of the Mortgage Loans after giving effect to   distributions   to be made

         on that   Distribution Date and (y) the excess, if any, of the aggregate

         Stated   Principal   Balance of the Mortgage Loans after giving effect to

         distributions   to   be   made   on   that    Distribution    Date,   over   the

         Overcollateralization Floor.

 

         Class M-4 Certificate:   Any one of the Class M-4 Certificates   executed

by the Trustee and authenticated by the Certificate   Registrar   substantially in

the form annexed hereto as Exhibit B, and evidencing (i) an interest   designated

as a "regular   interest"   in REMIC II for purposes of the REMIC   Provisions   and

(ii) the right to receive payments under the Yield Maintenance Agreement.

 

         Class M-4 Margin: Initially,   0.600% per annum, and on any Distribution

Date on and after the second Distribution Date after the first possible Optional

Termination Date, 0.900% per annum.

 

         Class   M-4   Principal    Distribution    Amount:    With   respect   to   any

Distribution   Date (a) prior to the   Stepdown   Date or on or after the   Stepdown

Date if a Trigger Event is in effect for that   Distribution   Date, the remaining

Principal   Distribution   Amount for that Distribution Date after distribution of

the Class A Principal   Distribution Amount, the Class M-1 Principal Distribution

Amount, the Class M-2 Principal   Distribution Amount and the Class M-3 Principal

Distribution   Amount or (b) on or after the Stepdown   Date if a Trigger Event is

not in effect for that Distribution Date, the lesser of:

 

(i)       the remaining Principal   Distribution Amount for that Distribution Date

         after   distribution of the Class A Principal   Distribution   Amount, the

         Class M-1   Principal   Distribution   Amount,   the   Class   M-2   Principal

         Distribution   Amount and the Class M-3 Principal   Distribution   Amount;

         and

 

(ii)      the   excess,   if any, of (A) the sum of (1) the   aggregate   Certificate

         Principal Balance of the Class A Certificates,   Class M-1 Certificates,

         Class M-2 Certificates   and Class M-3   Certificates   (after taking into

         account the payment of the Class A Principal   Distribution   Amount, the

         Class M-1   Principal   Distribution   Amount,   the   Class   M-2   Principal

         Distribution Amount and the Class M-3 Principal Distribution Amount for

         that   Distribution   Date) and (2) the Certificate   Principal Balance of

         the Class M-4 Certificates   immediately prior to that Distribution Date

         over   (B)   the   lesser   of   (x)   the   product   of   (1)   the   applicable

         Subordination Percentage and (2) the aggregate Stated Principal Balance

         of the Mortgage Loans after giving effect to   distributions   to be made

         on that   Distribution Date and (y) the excess, if any, of the aggregate

         Stated   Principal   Balance of the Mortgage Loans after giving effect to

         distributions   to   be   made   on   that    Distribution     Date,   over   the

         Overcollateralization Floor.

 

         Class M-5 Certificate:   Any one of the Class M-5 Certificates   executed

by the Trustee and authenticated by the Certificate   Registrar   substantially in

the form annexed hereto as Exhibit B, and evidencing (i) an interest   designated

as a "regular   interest"   in REMIC II for purposes of the REMIC   Provisions   and

(ii) the right to receive payments under the Yield Maintenance Agreement.

 

         Class M-5 Margin: Initially,   0.640% per annum, and on any Distribution

Date on and after the second Distribution Date after the first possible Optional

Termination Date, 0.960% per annum.

 

         Class   M-5   Principal    Distribution    Amount:    With   respect   to   any

Distribution   Date (a) prior to the   Stepdown   Date or on or after the   Stepdown

Date if a Trigger Event is in effect for that   Distribution   Date, the remaining

Principal   Distribution   Amount for that Distribution Date after distribution of

the Class A Principal   Distribution Amount, the Class M-1 Principal Distribution

Amount,   the Class M-2 Principal   Distribution   Amount,   the Class M-3 Principal

Distribution Amount and the Class M-4 Principal Distribution Amount or (b) on or

after   the   Stepdown   Date   if a   Trigger   Event   is   not   in   effect   for   that

Distribution Date, the lesser of:

 

(i)       the remaining Principal   Distribution Amount for that Distribution Date

         after   distribution of the Class A Principal   Distribution   Amount, the

         Class M-1   Principal   Distribution   Amount,   the   Class   M-2   Principal

         Distribution   Amount, the Class M-3 Principal   Distribution   Amount and

         the Class M-4 Principal Distribution Amount; and

 

(ii)      the   excess,   if any, of (A) the sum of (1) the   aggregate   Certificate

         Principal Balance of the Class A Certificates,   Class M-1 Certificates,

         Class   M-2    Certificates,    Class   M-3    Certificates   and   Class   M-4

         Certificates   (after   taking   into   account   the payment of the Class A

          Principal   Distribution   Amount,   the Class M-1 Principal   Distribution

         Amount,   the Class M-2   Principal   Distribution   Amount,   the Class M-3

         Principal   Distribution Amount and the Class M-4 Principal Distribution

         Amount for that   Distribution   Date) and (2) the Certificate   Principal

         Balance   of the   Class   M-5   Certificates   immediately   prior   to   that

         Distribution   Date over (B) the   lesser of (x) the   product   of (1) the

         applicable   Subordination   Percentage   and   (2)   the   aggregate   Stated

         Principal   Balance   of   the   Mortgage   Loans   after   giving   effect   to

         distributions to be made on that   Distribution Date and (y) the excess,

         if any, of the aggregate Stated Principal Balance of the Mortgage Loans

         after giving effect to   distributions   to be made on that   Distribution

         Date, over the Overcollateralization Floor.

 

         Class M-6 Certificate:   Any one of the Class M-6 Certificates   executed

by the Trustee and authenticated by the Certificate   Registrar   substantially in

the form annexed hereto as Exhibit B, and evidencing (i) an interest   designated

as a "regular   interest"   in REMIC II for purposes of the REMIC   Provisions   and

(ii) the right to receive payments under the Yield Maintenance Agreement.

 

         Class M-6 Margin: Initially,   0.690% per annum, and on any Distribution

Date on and after the second Distribution Date after the first possible Optional

Termination Date, 1.035% per annum.

 

         Class   M-6   Principal    Distribution    Amount:    With   respect   to   any

Distribution   Date (a) prior to the   Stepdown   Date or on or after the   Stepdown

Date if a Trigger Event is in effect for that   Distribution   Date, the remaining

Principal   Distribution   Amount for that Distribution Date after distribution of

the Class A Principal   Distribution Amount, the Class M-1 Principal Distribution

Amount,   the Class M-2 Principal   Distribution   Amount,   the Class M-3 Principal

Distribution   Amount, the Class M-4 Principal   Distribution Amount and the Class

M-5   Principal   Distribution   Amount or (b) on or after the   Stepdown   Date if a

Trigger Event is not in effect for that Distribution Date, the lesser of:

 

(iii)     the remaining Principal   Distribution Amount for that Distribution Date

         after   distribution of the Class A Principal   Distribution   Amount, the

         Class M-1   Principal   Distribution   Amount,   the   Class   M-2   Principal

         Distribution   Amount, the Class M-3 Principal   Distribution Amount, the

         Class M-4   Principal   Distribution   Amount and the Class M-5   Principal

         Distribution Amount; and

 

(iv)      the   excess,   if any, of (A) the sum of (1) the   aggregate   Certificate

         Principal Balance of the Class A Certificates,   Class M-1 Certificates,

         Class M-2 Certificates,   Class M-3 Certificates, Class M-4 Certificates

         and Class M-5   Certificates   (after   taking into account the payment of

         the Class A   Principal   Distribution   Amount,   the Class M-1   Principal

         Distribution   Amount, the Class M-2 Principal   Distribution Amount, the

         Class M-3   Principal   Distribution   Amount,   the   Class   M-4   Principal

         Distribution Amount and the Class M-5 Principal Distribution Amount for

         that   Distribution   Date) and (2) the Certificate   Principal Balance of

         the Class M-6 Certificates   immediately prior to that Distribution Date

         over   (B)   the   lesser   of   (x)   the   product   of   (1)   the   applicable

         Subordination Percentage and (2) the aggregate Stated Principal Balance

         of the Mortgage Loans after giving effect to   distributions   to be made

         on that   Distribution Date and (y) the excess, if any, of the aggregate

          Stated   Principal   Balance of the Mortgage Loans after giving effect to

         distributions   to   be   made   on   that    Distribution    Date,   over   the

         Overcollateralization Floor.

 

         Class M-7 Certificate:   Any one of the Class M-7 Certificates   executed

by the Trustee and authenticated by the Certificate   Registrar   substantially in

the form annexed hereto as Exhibit B, and evidencing (i) an interest   designated

as a "regular   interest"   in REMIC II for purposes of the REMIC   Provisions   and

(ii) the right to receive payments under the Yield Maintenance Agreement.

 

         Class M-7 Margin: Initially,   1.250% per annum, and on any Distribution

Date on and after the second Distribution Date after the first possible Optional

Termination Date, 1.875% per annum.

 

         Class   M-7   Principal    Distribution    Amount:    With   respect   to   any

Distribution   Date (a) prior to the   Stepdown   Date or on or after the   Stepdown

Date if a Trigger Event is in effect for that   Distribution   Date, the remaining

Principal   Distribution   Amount for that Distribution Date after distribution of

the Class A Principal   Distribution Amount, the Class M-1 Principal Distribution

Amount,   the Class M-2 Principal   Distribution   Amount,   the Class M-3 Principal

Distribution Amount, the Class M-4 Principal   Distribution Amount, the Class M-5

Principal Distribution Amount and the Class M-6 Principal Distribution Amount or

(b) on or after the Stepdown   Date if a Trigger   Event is not in effect for that

Distribution Date, the lesser of:

 

(i)       the remaining Principal   Distribution Amount for that Distribution Date

         after   distribution of the Class A Principal   Distribution   Amount, the

         Class M-1   Principal   Distribution   Amount,   the   Class   M-2   Principal

         Distribution   Amount, the Class M-3 Principal   Distribution Amount, the

         Class M-4   Principal   Distribution   Amount,   the   Class   M-5   Principal

         Distribution   Amount and the Class M-6 Principal   Distribution   Amount;

          and

 

(ii)      the   excess,   if any, of (A) the sum of (1) the   aggregate   Certificate

         Principal Balance of the Class A Certificates,   Class M-1 Certificates,

         Class M-2 Certificates, Class M-3 Certificates, Class M-4 Certificates,

          Class M-5 Certificates   and Class M-6   Certificates   (after taking into

         account the payment of the Class A Principal   Distribution   Amount, the

         Class M-1   Principal   Distribution   Amount,   the   Class   M-2   Principal

         Distribution   Amount, the Class M-3 Principal   Distribution Amount, the

         Class M-4   Principal   Distribution   Amount,   the   Class   M-5   Principal

         Distribution Amount and the Class M-6 Principal Distribution Amount for

         that   Distribution   Date) and (2) the Certificate   Principal Balance of

         the Class M-7 Certificates   immediately prior to that Distribution Date

         over   (B)   the   lesser   of   (x)   the   product   of   (1)   the   applicable

         Subordination Percentage and (2) the aggregate Stated Principal Balance

         of the Mortgage Loans after giving effect to   distributions   to be made

         on that   Distribution Date and (y) the excess, if any, of the aggregate

         Stated   Principal   Balance of the Mortgage Loans after giving effect to

         distributions   to   be   made   on   that    Distribution    Date,   over   the

         Overcollateralization Floor.

 

         Class M-8 Certificate:   Any one of the Class M-8 Certificates   executed

by the Trustee and authenticated by the Certificate   Registrar   substantially in

the form annexed hereto as Exhibit B, and evidencing (i) an interest   designated

as a "regular   interest"   in REMIC II for purposes of the REMIC   Provisions   and

(ii) the right to receive payments under the Yield Maintenance Agreement.

 

         Class M-8 Margin: Initially,   1.450% per annum, and on any Distribution

Date on and after the second Distribution Date after the first possible Optional

Termination Date, 2.175% per annum.

 

         Class   M-8   Principal    Distribution    Amount:    With   respect   to   any

Distribution   Date (a) prior to the   Stepdown   Date or on or after the   Stepdown

Date if a Trigger Event is in effect for that   Distribution   Date, the remaining

Principal   Distribution   Amount for that Distribution Date after distribution of

the Class A Principal   Distribution Amount, the Class M-1 Principal Distribution

Amount,   the Class M-2 Principal   Distribution   Amount,   the Class M-3 Principal

Distribution Amount, the Class M-4 Principal   Distribution Amount, the Class M-5

Principal   Distribution Amount, the Class M-6 Principal   Distribution Amount and

the Class M-7 Principal Distribution Amount or (b) on or after the Stepdown Date

if a Trigger Event is not in effect for that Distribution Date, the lesser of:

 

(i)       the remaining Principal   Distribution Amount for that Distribution Date

         after   distribution of the Class A Principal   Distribution   Amount, the

         Class M-1   Principal   Distribution   Amount,   the   Class   M-2   Principal

         Distribution   Amount, the Class M-3 Principal   Distribution Amount, the

         Class M-4   Principal   Distribution   Amount,   the   Class   M-5   Principal

         Distribution   Amount, the Class M-6 Principal   Distribution   Amount and

          the Class M-7 Principal Distribution Amount; and

 

(ii)      the   excess,   if any, of (A) the sum of (1) the   aggregate   Certificate

         Principal Balance of the Class A Certificates,   Class M-1 Certificates,

         Class M-2 Certificates, Class M-3 Certificates, Class M-4 Certificates,

         Class   M-5    Certificates,    Class   M-6    Certificates   and   Class   M-7

         Certificates   (after   taking   into   account   the payment of the Class A

         Principal   Distribution   Amount,   the Class M-1 Principal   Distribution

         Amount,   the Class M-2   Principal   Distribution   Amount,   the Class M-3

         Principal   Distribution   Amount,   the Class M-4 Principal   Distribution

         Amount,   the Class M-5   Principal   Distribution   Amount,   the Class M-6

         Principal   Distribution Amount and the Class M-7 Principal Distribution

         Amount for that   Distribution   Date) and (2) the Certificate   Principal

         Balance   of the   Class   M-8   Certificates   immediately   prior   to   that

         Distribution   Date over (B) the   lesser of (x) the   product   of (1) the

         applicable   Subordination   Percentage   and   (2)   the   aggregate   Stated

         Principal   Balance   of   the   Mortgage   Loans   after   giving   effect   to

         distributions to be made on that   Distribution Date and (y) the excess,

         if any, of the aggregate Stated Principal Balance of the Mortgage Loans

         after giving effect to   distributions   to be made on that   Distribution

         Date, over the Overcollateralization Floor.

 

         Class M-9 Certificate:   Any one of the Class M-9 Certificates   executed

by the Trustee and authenticated by the Certificate   Registrar   substantially in

the form annexed hereto as Exhibit B, and evidencing (i) an interest   designated

as a "regular   interest"   in REMIC II for purposes of the REMIC   Provisions   and

(ii) the right to receive payments under the Yield Maintenance Agreement.

 

         Class M-9 Margin: Initially,   2.000% per annum, and on any Distribution

Date on and after the second Distribution Date after the first possible Optional

Termination Date, 3.000% per annum.

 

         Class   M-9   Principal    Distribution    Amount:    With   respect   to   any

Distribution   Date (a) prior to the   Stepdown   Date or on or after the   Stepdown

Date if a Trigger Event is in effect for that   Distribution   Date, the remaining

Principal   Distribution   Amount for that Distribution Date after distribution of

the Class A Principal   Distribution Amount, the Class M-1 Principal Distribution

Amount,   the Class M-2 Principal   Distribution   Amount,   the Class M-3 Principal

Distribution Amount, the Class M-4 Principal   Distribution Amount, the Class M-5

Principal   Distribution Amount, the Class M-6 Principal Distribution Amount, the

Class M-7 Principal Distribution Amount and the Class M-8 Principal Distribution

Amount or (b) on or after the Stepdown   Date if a Trigger Event is not in effect

for that Distribution Date, the lesser of:

 

(i)       the remaining Principal   Distribution Amount for that Distribution Date

         after   distribution of the Class A Principal   Distribution   Amount, the

         Class M-1   Principal   Distribution   Amount,   the   Class   M-2   Principal

         Distribution   Amount, the Class M-3 Principal   Distribution Amount, the

         Class M-4   Principal   Distribution   Amount,   the   Class   M-5   Principal

         Distribution Amount, Class M-6 Principal Distribution Amount, the Class

         M-7   Principal    Distribution    Amount   and   the   Class   M-8   Principal

          Distribution Amount; and

 

(ii)      the   excess,   if any, of (A) the sum of (1) the   aggregate   Certificate

         Principal Balance of the Class A Certificates,   Class M-1 Certificates,

         Class M-2 Certificates, Class M-3 Certificates, Class M-4 Certificates,

         Class M-5 Certificates,   Class M-6 Certificates, Class M-7 Certificates

         and Class M-8   Certificates   (after   taking into account the payment of

         the Class A   Principal   Distribution   Amount,   the Class M-1   Principal

         Distribution   Amount, the Class M-2 Principal   Distribution Amount, the

         Class M-3   Principal   Distribution   Amount,   the   Class   M-4   Principal

         Distribution   Amount, the Class M-5 Principal   Distribution Amount, the

          Class M-6   Principal   Distribution   Amount,   the   Class   M-7   Principal

         Distribution Amount and the Class M-8 Principal Distribution Amount for

         that   Distribution   Date) and (2) the Certificate   Principal Balance of

         the Class M-9 Certificates   immediately prior to that Distribution Date

         over   (B)   the   lesser   of   (x)   the   product   of   (1)   the   applicable

         Subordination Percentage and (2) the aggregate Stated Principal Balance

         of the Mortgage Loans after giving effect to   distributions   to be made

         on that   Distribution Date and (y) the excess, if any, of the aggregate

         Stated   Principal   Balance of the Mortgage Loans after giving effect to

         distributions   to   be   made   on   that    Distribution    Date,   over   the

         Overcollateralization Floor.

 

         Class R Certificate: Collectively, the Class R-I Certificates and Class

R-II Certificates.

 

         Class R-I Certificate:   Any one of the Class R-I Certificates   executed

by the Trustee and authenticated by the Certificate   Registrar   substantially in

the form annexed hereto as Exhibit D and evidencing an interest   designated as a

"residual interest" in REMIC I for purposes of the REMIC Provisions.

 

         Class R-II Certificate: Any one of the Class R-II Certificates executed

by the Trustee and authenticated by the Certificate   Registrar   substantially in

the form annexed hereto as Exhibit D and evidencing an interest   designated as a

"residual interest" in REMIC II for purposes of the REMIC Provisions.

 

         Class SB Certificate:   Any one of the Class SB Certificates executed by

the Trustee and authenticated by the Certificate Registrar   substantially in the

form annexed hereto as Exhibit C,   subordinate   to the Class A Certificates   and

Class M   Certificates   with   respect   to   distributions   and the   allocation   of

Realized   Losses   as set forth in   Section   4.05,   and   evidencing   an   interest

comprised of "regular   interests"   in REMIC II together   with certain   rights to

payments   under   the   Yield   Maintenance   Agreement   for   purposes   of the REMIC

Provisions.

 

         Closing Date:   November 17, 2005.

 

         Code:   The Internal Revenue Code of 1986.

 

         Commission:   The Securities and Exchange Commission.

 

         Compensating   Interest:   With   respect to any   Distribution   Date,   any

amount paid by the Master Servicer in accordance with Section 3.16(f).

 

         Corporate Trust Office: The principal office of the Trustee at which at

any particular   time its corporate trust business with respect to this Agreement

shall   be   administered,   which   office   at the   date of the   execution   of this

instrument   is   located   at   U.S.   Bank   National   Association,   EP-MN-WS3D,   60

Livingston Avenue, St. Paul MN 55107, Attn: RASC 2005-EMX4.

 

         Credit   Repository:    Equifax,    Transunion   and   Experian,    or   their

successors in interest.

 

         Curtailment:   Any Principal Prepayment made by a Mortgagor which is not

a Principal Prepayment in Full.

 

          Custodial   Account:   The   custodial   account or   accounts   created   and

maintained pursuant to Section 3.07 in the name of a depository institution,   as

custodian for the holders of the Certificates,   for the holders of certain other

interests in mortgage loans serviced or sold by the Master   Servicer and for the

Master   Servicer,   into which the   amounts   set forth in   Section   3.07 shall be

deposited directly. Any such account or accounts shall be an Eligible Account.

 

         Custodial   Agreement:   An agreement   that may be entered into among the

Depositor, the Master Servicer, the Trustee and a Custodian in substantially the

form of Exhibit E hereto.

 

         Custodian: Wells Fargo Bank, N.A., or any successor custodian appointed

pursuant to a Custodial Agreement.

 

         Cut-off Date:   November 1, 2005.

 

         Cut-off Date Balance:   $515,000,789.90.

 

         Cut-off Date Principal Balance:   With respect to any Mortgage Loan, the

unpaid principal   balance thereof at the Cut-off Date after giving effect to all

installments   of principal   due on or prior   thereto (or due in the month of the

Cut-off Date), whether or not received.

 

         Debt Service Reduction:   With respect to any Mortgage Loan, a reduction

in the scheduled   Monthly Payment for such Mortgage Loan by a court of competent

jurisdiction in a proceeding under the Bankruptcy Code,   except such a reduction

constituting a Deficient   Valuation or any reduction that results in a permanent

forgiveness of principal.

 

         Deficient Valuation:   With respect to any Mortgage Loan, a valuation by

a court of competent   jurisdiction   of the Mortgaged   Property in an amount less

than the then outstanding indebtedness under the Mortgage Loan, or any reduction

in the amount of principal to be paid in connection   with any scheduled   Monthly

Payment that constitutes a permanent   forgiveness of principal,   which valuation

or reduction results from a proceeding under the Bankruptcy Code.

 

         Definitive Certificate:   Any definitive, fully registered Certificate.

 

         Deleted   Mortgage Loan: A Mortgage Loan replaced or to be replaced with

a Qualified Substitute Mortgage Loan.

 

         Delinquent: As used herein, a Mortgage Loan is considered to be: "30 to

59 days" or "30 or more days" delinquent when a payment due on any scheduled due

date remains   unpaid as of the close of business on the next   following   monthly

scheduled   due   date;   "60 to 89 days" or "60 or more   days"   delinquent   when a

payment due on any scheduled due date remains unpaid as of the close of business

on the second following monthly scheduled due date; and so on. The determination

as to whether a Mortgage   Loan   falls   into these   categories   is made as of the

close of   business   on the last   business   day of each   month.   For   example,   a

Mortgage Loan with a payment due on July 1 that remained   unpaid as of the close

of   business   on   August   31   would   then   be   considered   to be   30 to 59   days

delinquent.   Delinquency   information   as of the Cut-off Date is determined   and

prepared as of the close of business on the last business day immediately   prior

to the Cut-off Date.

 

         Depositor:   As defined in the preamble hereto.

 

         Depository:   The Depository Trust Company, or any successor   Depository

hereafter   named.   The   nominee   of   the   initial   Depository   for   purposes   of

registering those Certificates that are to be Book-Entry   Certificates is Cede &

Co. The Depository shall at all times be a "clearing   corporation" as defined in

Section   8-102(a)(5) of the Uniform Commercial Code of the State of New York and

a "clearing agency" registered   pursuant to the provisions of Section 17A of the

Exchange Act.

 

         Depository   Participant:   A   broker,   dealer,   bank or other   financial

institution   or other   Person   for whom from time to time a   Depository   effects

book-entry transfers and pledges of securities deposited with the Depository.

 

         Derivative   Contract:   Any ISDA   Master   Agreement,   together   with the

related Schedule and Confirmation,   entered into by the Trustee and a Derivative

Counterparty in accordance with Section 4.09.

 

         Derivative   Counterparty:   Any counterparty to a Derivative Contract as

provided in Section 4.09

 

         Destroyed   Mortgage   Note:   A Mortgage   Note the   original of which was

permanently lost or destroyed and has not been replaced.

 

         Determination Date: With respect to any Distribution Date, the 20th day

(or if such   20th   day is not a   Business   Day,   the   Business   Day   immediately

following such 20th day) of the month of the related Distribution Date.

 

         Disqualified Organization:   Any organization defined as a "disqualified

organization" under Section 860E(e)(5) of the Code, including,   if not otherwise

included,   any of the following:   (i) the United States,   any State or political

subdivision   thereof,   any   possession   of the United   States,   or any agency or

instrumentality of any of the foregoing (other than an instrumentality   which is

a   corporation   if all of its   activities   are   subject   to tax and,   except for

Freddie   Mac, a   majority   of its board of   directors   is not   selected   by such

governmental unit), (ii) a foreign government,   any international   organization,

or any agency or instrumentality of any of the foregoing, (iii) any organization

(other than certain farmers' cooperatives   described in Section 521 of the Code)

which is exempt from the tax imposed by Chapter 1 of the Code (including the tax

imposed by Section 511 of the Code on   unrelated   business   taxable   income) and

(iv)   rural    electric    and    telephone    cooperatives    described   in   Section

1381(a)(2)(C)   of the   Code.   A   Disqualified   Organization   also   includes   any

"electing large   partnership,"   as defined in Section 775(a) of the Code and any

other Person so   designated by the Trustee based upon an Opinion of Counsel that

the holding of an Ownership Interest in a Class R Certificate by such Person may

cause   any REMIC or any   Person   having an   Ownership   Interest   in any Class of

Certificates   (other than such Person) to incur a liability   for any federal tax

imposed   under the Code that would not otherwise be imposed but for the Transfer

of an Ownership   Interest in a Class R   Certificate   to such   Person.   The terms

"United   States,"   "State"   and   "international   organization"   shall   have   the

meanings set forth in Section 7701 of the Code or successor provisions.

 

         Distribution Date: The 25th day of any month beginning in December 2005

or,   if such   25th day is not a   Business   Day,   the   Business   Day   immediately

following such 25th day.

 

         DTC Letter:   The Letter of   Representations,   dated   November 16, 2005,

among the Trustee on behalf of the Trust Fund,   U.S. Bank National   Association,

in its individual capacity as agent thereunder and the Depository.

 

         Due Date: With respect to any Distribution   Date and any Mortgage Loan,

the day during the related Due Period on which the Monthly Payment is due.

 

         Due Period:   With respect to any Distribution   Date, the calendar month

of such Distribution Date.

 

         Eligible   Account:   An   account   that   is   any of   the   following:   (i)

maintained with a depository institution the debt obligations of which have been

rated by each Rating Agency in its highest rating available,   or (ii) an account

or accounts in a depository institution in which such accounts are fully insured

to the limits established by the FDIC, provided that any deposits not so insured

shall, to the extent   acceptable to each Rating Agency, as evidenced in writing,

be maintained such that (as evidenced by an Opinion of Counsel   delivered to the

Trustee and each Rating Agency) the registered   Holders of   Certificates   have a

claim with   respect to the funds in such account or a perfected   first   security

interest    against   any    collateral    (which   shall   be   limited   to   Permitted

Investments)   securing   such   funds   that is   superior   to   claims   of any other

depositors or creditors of the depository institution with which such account is

maintained,   or (iii) in the case of the Custodial   Account,   a trust account or

accounts   maintained   in the   corporate   trust   department of U.S. Bank National

Association,   or (iv) in the case of the Certificate Account, a trust account or

accounts   maintained   in the   corporate   trust   division of U.S.   Bank   National

Association,   or   (v)   an   account   or   accounts   of   a   depository   institution

acceptable   to each Rating Agency (as evidenced in writing by each Rating Agency

that use of any such account as the Custodial Account or the Certificate Account

will not reduce the rating   assigned to any Class of Certificates by such Rating

Agency   below the   then-current   rating   assigned to such   Certificates   by such

Rating Agency).

 

         Eligible    Master    Servicing    Compensation:    With    respect   to   any

Distribution   Date,   the   lesser of (a)   one-twelfth   of   0.125%   of the   Stated

Principal   Balance of the related   Mortgage   Loans   immediately   preceding   such

Distribution   Date and (b) the sum of the   Servicing Fee and all income and gain

on amounts held in the Custodial Account and the Certificate Account and payable

to the Certificateholders   with respect to such Distribution Date; provided that

for   purposes of this   definition   the amount of the   Servicing   Fee will not be

reduced   pursuant to Section   7.02(a) except as may be required   pursuant to the

last sentence of such Section.

 

         ERISA: The Employee Retirement Income Security Act of 1974, as amended.

 

         Event of Default:   As defined in Section 7.01.

 

         Excess Cash Flow:   With   respect to any   Distribution   Date,   an amount

equal to the sum of (A) the excess of (i) the Available   Distribution Amount for

that Distribution Date over (ii) the sum of (a) the Interest Distribution Amount

for that Distribution   Date and (b) the lesser of (1) the aggregate   Certificate

Principal   Balance of Class A Certificates and Class M Certificates   immediately

prior to such Distribution Date and (2) the Principal Remittance Amount for that

Distribution   Date to the extent   not   applied   to pay   interest   on the Class A

Certificates   and   Class M   Certificates   on   such   Distribution   Date,   (B) the

Overcollateralization   Reduction   Amount, if any, for that Distribution Date and

(C) any Yield   Maintenance   Agreement   Payment   received by the Trustee for that

Distribution Date.

 

         Excess   Overcollateralization   Amount: With respect to any Distribution

Date,   the   excess,   if any,   of (a) the   Overcollateralization   Amount   on such

Distribution   Date over (b) the Required   Overcollateralization   Amount for such

Distribution Date.

 

         Exchange Act:   The Securities Exchange Act of 1934, as amended.

 

         Expense Fee Rate:   With respect to any Mortgage   Loan as of any date of

determination,   the sum of the   applicable   Servicing Fee Rate and the per annum

rate at which the applicable Subservicing Fee accrues.

 

         Fannie Mae:   Fannie   Mae, a federally   chartered   and   privately   owned

corporation    organized   and   existing   under   the   Federal   National    Mortgage

Association Charter Act, or any successor thereto.

 

         FDIC:   Federal Deposit Insurance Corporation or any successor thereto.

 

         Final   Distribution   Date:   The   Distribution   Date on which   the final

distribution   in respect of the   Certificates   will be made   pursuant to Section

9.01, which Final   Distribution   Date shall in no event be later than the end of

the 90-day liquidation period described in Section 9.02.

 

         Final Scheduled   Distribution   Date: Solely for purposes of the face of

the Certificates,   as follows:   with respect to the Class A-1 Certificates,   the

Distribution   Date   occurring   in May 2023;   with   respect   to the Class A-2 the

Distribution   Date   occurring in January 2035; and with respect to the Class A-3

Certificates   and each   Class of Class M   Certificates,   the   Distribution   Date

occurring in November   2035. No event of default under this Agreement will arise

or   become   applicable   solely by reason of the   failure   to retire   the   entire

Certificate   Principal   Balance of any Class of Class A Certificates   or Class M

Certificates on or before its Final Scheduled Distribution Date.

 

         Fitch:   Fitch Ratings, or its successors in interest.

 

         Foreclosure   Profits:   With respect to any Distribution Date or related

Determination   Date and any Mortgage   Loan,   the excess,   if any, of Liquidation

Proceeds,   Insurance Proceeds and REO Proceeds (net of all amounts   reimbursable

therefrom   pursuant to Section   3.10(a)(ii)) in respect of each Mortgage Loan or

REO Property for which a Cash   Liquidation   or REO   Disposition   occurred in the

related   Prepayment   Period over the sum of the unpaid principal balance of such

Mortgage Loan or REO Property (determined, in the case of an REO Disposition, in

accordance   with Section 3.14) plus accrued and unpaid   interest at the Mortgage

Rate on such unpaid   principal   balance from the Due Date to which   interest was

last paid by the Mortgagor to the first day of the month   following the month in

which such Cash Liquidation or REO Disposition occurred.

 

         Form 10-K Certification:   As defined in Section 4.03(e).

 

         Freddie   Mac:   Freddie Mac, a corporate   instrumentality   of the United

States created and existing under Title III of the Emergency Home Finance Act of

1970, as amended, or any successor thereto.

 

         Gross Margin: With respect to each   adjustable-rate   Mortgage Loan, the

fixed   percentage   set forth in the related   Mortgage   Note and indicated on the

Mortgage Loan Schedule as the "NOTE   MARGIN,"   which   percentage is added to the

related   Index on each   Adjustment   Date to   determine   (subject   to rounding in

accordance   with the   related   Mortgage   Note,   the   Periodic   Cap,   the Maximum

Mortgage   Rate and the Minimum   Mortgage   Rate) the interest rate to be borne by

such Mortgage Loan until the next Adjustment Date.

 

         HUD:   The United States Department of Housing and Urban Development.

 

         Independent: When used with respect to any specified Person, means such

a Person who (i) is in fact   independent of the Depositor,   the Master   Servicer

and the   Trustee,   or any   Affiliate   thereof,   (ii)   does not   have any   direct

financial interest or any material indirect financial interest in the Depositor,

the Master Servicer or the Trustee or in an Affiliate thereof,   and (iii) is not

connected with the Depositor,   the Master Servicer or the Trustee as an officer,

employee, promoter, underwriter, trustee, partner, director or person performing

similar functions.

 

         Index: With respect to any adjustable-rate   Mortgage Loan and as to any

Adjustment   Date therefor,   the related index as stated in the related   Mortgage

Note.

 

         Initial   Certificate   Principal Balance:   With respect to each Class of

Certificates   (other than the Class R Certificates),   the Certificate   Principal

Balance of such Class of Certificates as of the Closing Date as set forth in the

Preliminary Statement hereto.

 

         Insurance   Proceeds:   Proceeds   paid in respect of the   Mortgage   Loans

pursuant to any Primary   Insurance Policy or any other related   insurance policy

covering a   Mortgage   Loan,   to the   extent   such   proceeds   are   payable to the

mortgagee   under the   Mortgage,   any   Subservicer,   the Master   Servicer   or the

Trustee and are not applied to the restoration of the related Mortgaged Property

or released to the Mortgagor in accordance   with the procedures   that the Master

Servicer would follow in servicing mortgage loans held for its own account.

 

         Interest   Accrual   Period:   With   respect to the   Distribution   Date in

December   2005,   the period   commencing   the Closing   Date and ending on the day

preceding   the   Distribution   Date in   December   2005,   and with   respect to any

Distribution   Date after the   Distribution   Date in   December   2005,   the period

commencing on the Distribution Date in the month immediately preceding the month

in which such   Distribution   Date   occurs and ending on the day   preceding   such

Distribution Date.

 

         Interest   Distribution   Amount:   For any Distribution Date, the amounts

payable pursuant to Section 4.02(c)(i) and (ii).

 

         Interim Certification:   As defined in Section 2.02.

 

         Late   Collections:   With   respect to any   Mortgage   Loan,   all   amounts

received during any Due Period,   whether as late payments of Monthly Payments or

as Insurance Proceeds,   Liquidation Proceeds or otherwise,   which represent late

payments or   collections   of Monthly   Payments due but delinquent for a previous

Due Period and not previously recovered.

 

         LIBOR:   With respect to any   Distribution   Date, the arithmetic mean of

the London interbank offered rate quotations for one-month U.S. Dollar deposits,

expressed on a per annum basis, determined in accordance with Section 1.02.

 

         LIBOR Business Day: Any day other than (i) a Saturday or Sunday or (ii)

a day   on   which   banking   institutions   in   London,   England   are   required   or

authorized by law to be closed.

 

         LIBOR Certificates:   Collectively, the Class A Certificates and Class M

Certificates.

 

         LIBOR Rate Adjustment Date: With respect to each Distribution Date, the

second LIBOR Business Day immediately   preceding the commencement of the related

Interest Accrual Period.

 

         Limited   Repurchase   Right Holder:   RFC Asset Holdings II, Inc., or its

successor.

 

         Liquidation Proceeds:   Amounts (other than Insurance Proceeds) received

by the Master   Servicer   in   connection   with the taking of an entire   Mortgaged

Property   by   exercise   of the power of   eminent   domain or   condemnation   or in

connection with the liquidation of a defaulted   Mortgage Loan through   trustee's

sale,   foreclosure   sale or   otherwise,   other than REO Proceeds and   Subsequent

Recoveries.

 

         Loan-to-Value   Ratio:   As of any date,   the   fraction,   expressed   as a

percentage,   the   numerator   of which is the   current   principal   balance of the

related Mortgage Loan at the date of determination   and the denominator of which

is the Appraised Value of the related Mortgaged Property.

 

         Margin: The Class A-1 Margin, Class A-2 Margin, Class A-3 Margin, Class

M-1 Margin,   Class M-2 Margin,   Class M-3   Margin,   Class M-4 Margin,   Class M-5

Margin,   Class M-6   Margin,   Class   M-7   Margin,   Class M-8   Margin or Class M-9

Margin, as applicable.

 

         Marker Rate:   With respect to the Class SB Certificates or the REMIC II

Regular Interest SB-IO and any Distribution   Date, a per annum rate equal to two

(2) times the weighted average of the Uncertificated   REMIC I Pass-Through Rates

for REMIC I Regular Interest LT2 and REMIC I Regular Interest LT3.

 

         Master Servicer:   As defined in the preamble hereto.

 

         Maturity Date: With respect to each Class of Certificates   representing

ownership of REMIC II Regular   Interests or REMIC I Regular   Interests issued by

each of REMIC I and REMIC II the   latest   possible   maturity   date,   solely   for

purposes of Section   1.860G-1(a)(4)(iii)   of the Treasury Regulations,   by which

the    Certificate    Principal    Balance   of   each   such   Class   of   Certificates

representing   a regular   interest   in the Trust   Fund   would be reduced to zero,

which is,   for each such   regular   interest,   November   25,   2035,   which is the

Distribution   Date occurring in the month   following the last scheduled   monthly

payment of the Mortgage Loans.

 

         Maximum   Mortgage Rate:   With respect to any   adjustable-rate   Mortgage

Loan,   the per annum rate   indicated on the Mortgage   Loan Schedule as the "NOTE

CEILING," which rate is the maximum interest rate that may be applicable to such

Mortgage Loan at any time during the life of such Mortgage Loan.

 

         Maximum Net Mortgage Rate: With respect to any adjustable-rate Mortgage

Loan and any date of determination,   the Maximum Mortgage Rate minus the Expense

Fee   Rate.   With   respect   to any   fixed-rate   Mortgage   Loan   and   any   date of

determination, the Net Mortgage Rate.

 

         MERS: Mortgage   Electronic   Registration   Systems,   Inc., a corporation

organized and existing under the laws of the State of Delaware, or any successor

thereto.

 

         MERS(R)   System:   The   system   of   recording    transfers   of   Mortgages

electronically maintained by MERS.

 

         MIN: The Mortgage   Identification   Number for Mortgage Loans registered

with MERS on the MERS(R) System.

 

         Minimum   Mortgage Rate:   With respect to any   adjustable-rate   Mortgage

Loan,   a per annum rate equal to the greater of (i) the Note Margin and (ii) the

rate indicated on the Mortgage Loan Schedule as the "NOTE FLOOR," which rate may

be applicable to such Mortgage Loan at any time during the life of such Mortgage

Loan.

 

         Modified   Mortgage Loan: Any Mortgage Loan that has been the subject of

a Servicing Modification.

 

         Modified Net Mortgage   Rate:   With respect to any Mortgage Loan that is

the subject of a Servicing   Modification,   the Net Mortgage   Rate minus the rate

per annum by which the Mortgage Rate on such Mortgage Loan was reduced.

 

         MOM   Loan:   With   respect   to any   Mortgage   Loan,   MERS   acting as the

mortgagee of such Mortgage   Loan,   solely as nominee for the   originator of such

Mortgage Loan and its successors and assigns, at the origination thereof.

 

         Monthly   Payment:   With respect to any Mortgage Loan (including any REO

Property)   and the Due Date in any Due   Period,   the   payment of   principal   and

interest due thereon in accordance   with the   amortization   schedule at the time

applicable thereto (after adjustment, if any, for Curtailments and for Deficient

Valuations   occurring   prior to such Due Date but before any   adjustment to such

amortization   schedule   by   reason of any   bankruptcy,   other   than a   Deficient

Valuation,   or similar   proceeding or any   moratorium or similar waiver or grace

period and before any Servicing Modification that constitutes a reduction of the

interest rate on such Mortgage Loan).

 

         Moody's:    Moody's   Investors   Service,   Inc.,   or   its   successors   in

interest.

 

         Mortgage:   With respect to each Mortgage   Note,   the mortgage,   deed of

trust or other   comparable   instrument   creating   a first or   junior   lien on an

estate in fee simple or leasehold   interest in real property securing a Mortgage

Note.

 

         Mortgage File: The mortgage documents listed in Section 2.01 pertaining

to a particular Mortgage Loan and any additional   documents required to be added

to the Mortgage File pursuant to this Agreement.

 

         Mortgage Loans:   Such of the mortgage loans transferred and assigned to

the Trustee   pursuant to Section 2.01 as from time to time are held or deemed to

be held as a part of the Trust Fund, the Mortgage Loans originally so held being

identified in the initial   Mortgage   Loan   Schedule,   and   Qualified   Substitute

Mortgage Loans held or deemed held as part of the Trust Fund including,   without

limitation,   each related   Mortgage   Note,   Mortgage   and Mortgage   File and all

rights appertaining thereto.

 

         Mortgage Loan Schedule: The lists of the Mortgage Loans attached hereto

as Exhibit F (as amended   from time to time to reflect the addition of Qualified

Substitute   Mortgage   Loans),   which   lists   shall set   forth at a   minimum   the

following information as to each Mortgage Loan:

 

(i)             the Mortgage Loan identifying number ("RFC LOAN #");

 

(ii)             [reserved];

 

(iii)           the maturity of the Mortgage Note ("MATURITY   DATE," or "MATURITY

               DT");

 

(iv)            for the   adjustable-rate   Mortgage Loans, the Mortgage Rate as of

               origination ("ORIG RATE");

 

(v)              the Mortgage Rate as of the Cut-off Date ("CURR RATE");

 

(vi)            the Net Mortgage Rate as of the Cut-off Date ("CURR NET");

 

(vii)           the scheduled monthly payment of principal,   if any, and interest

               as of the Cut-off Date ("ORIGINAL P & I" or "CURRENT P & I");

 

(viii)          the Cut-off Date Principal Balance ("PRINCIPAL BAL");

 

(ix)            the Loan-to-Value Ratio at origination ("LTV");

 

(x)             a   code   "T,"   "BT"   or   "CT"   under   the   column   "LN   FEATURE,"

               indicating   that the   Mortgage   Loan is   secured   by a second   or

               vacation   residence   (the   absence   of any such   code   means   the

               Mortgage Loan is secured by a primary residence);

 

(xi)            a code "N" under the   column   "OCCP   CODE,"   indicating   that the

               Mortgage Loan is secured by a non-owner   occupied   residence (the

               absence of any such code means the Mortgage Loan is secured by an

               owner occupied residence);

 

(xii)           for the adjustable-rate Mortgage Loans, the Maximum Mortgage Rate

               ("NOTE CEILING");

 

(xiii)          for the adjustable-rate   Mortgage Loans, the maximum Net Mortgage

               Rate ("NET CEILING");

 

(xiv)           for the   adjustable-rate   Mortgage Loans,   the Note Margin ("NOTE

               MARGIN");

 

(xv)            for the adjustable-rate Mortgage Loans, the first Adjustment Date

               after the Cut-off Date ("NXT INT CHG DT");

 

(xvi)           for   the    adjustable-rate    Mortgage   Loans,   the   Periodic   Cap

               ("PERIODIC DECR" or "PERIODIC INCR");

 

(xvii)          [reserved]; and

 

(xviii)         for the   adjustable-rate   Mortgage   Loans,   the   rounding   of the

               semi-annual   or annual   adjustment   to the   Mortgage   Rate ("NOTE

               METHOD").

 

         Such schedules may consist of multiple   reports that   collectively   set

forth all of the information required.

 

         Mortgage   Note:   The   originally   executed   note or other   evidence   of

indebtedness   evidencing the   indebtedness of a Mortgagor under a Mortgage Loan,

together with any modification thereto.

 

         Mortgage   Rate:   With respect to any Mortgage   Loan,   the interest rate

borne by the related   Mortgage   Note, or any   modification   thereto other than a

Servicing Modification.   The Mortgage Rate on the adjustable-rate Mortgage Loans

will   adjust on each   Adjustment   Date to equal the sum   (rounded to the nearest

multiple of one-eighth of one percent   (0.125%) or up to the nearest   one-eighth

of one percent,   which are   indicated by a "U" on the   Mortgage   Loan   Schedule,

except in the case of the adjustable-rate   Mortgage Loans indicated by an "X" on

the Mortgage Loan   Schedule   under the heading   "NOTE   METHOD"),   of the related

Index plus the Note Margin, in each case subject to the applicable Periodic Cap,

Maximum Mortgage Rate and Minimum Mortgage Rate.

 

         Mortgaged   Property:   The underlying real property   securing a Mortgage

Loan.

 

         Mortgagor:   The obligor on a Mortgage Note.

 

         Net Mortgage Rate:   With respect to any Mortgage Loan as of any date of

determination,   a per annum rate equal to the   Mortgage   Rate for such   Mortgage

Loan as of such date minus the related Expense Fee Rate.

 

          Net WAC Cap Rate: With respect to any Distribution Date, the product of

(i) a per annum rate equal to the   weighted   average of the Net   Mortgage   Rates

(or, if   applicable,   the Modified   Net   Mortgage   Rates) using the Net Mortgage

Rates in effect for the Monthly   Payments due on such Mortgage   Loans during the

related Due Period,   weighted on the basis of the   respective   Stated   Principal

Balances   thereof   for such   Distribution   Date and (ii) a fraction   equal to 30

divided by the actual number of days in the related Interest Accrual Period.

 

         Non-United States Person: Any Person other than a United States Person.

 

         Nonrecoverable   Advance:   Any Advance previously made or proposed to be

made by the Master   Servicer or Subservicer in respect of a Mortgage Loan (other

than a Deleted   Mortgage   Loan) which,   in the good faith judgment of the Master

Servicer,   will not,   or,   in the case of a   proposed   Advance,   would   not,   be

ultimately   recoverable   by the Master   Servicer from related Late   Collections,

Insurance Proceeds, Liquidation Proceeds or REO Proceeds. To the extent that any

Mortgagor   is not   obligated   under the   related   Mortgage   documents   to pay or

reimburse   any   portion of any   Servicing   Advances   that are   outstanding   with

respect   to the   related   Mortgage   Loan as a result of a   modification   of such

Mortgage Loan by the Master   Servicer,   which forgives   amounts which the Master

Servicer   or   Subservicer   had   previously   advanced,   and the   Master   Servicer

determines that no other source of payment or reimbursement for such advances is

available to it, such Servicing   Advances   shall be deemed to be   Nonrecoverable

Advances.   The   determination   by   the   Master   Servicer   that   it   has   made   a

Nonrecoverable   Advance   shall be   evidenced   by a   certificate   of a   Servicing

Officer,   Responsible   Officer or Vice   President   or its   equivalent   or senior

officer of the Master Servicer, delivered to the Depositor, the Trustee, and the

Master Servicer setting forth such determination,   which shall include any other

information   or   reports   obtained   by the   Master   Servicer   such   as   property

operating   statements,   rent rolls,   property inspection reports and engineering

reports,   which may support such determinations.   Notwithstanding the above, the

Trustee shall be entitled to rely upon any   determination by the Master Servicer

that   any   Advance   previously   made is a   Nonrecoverable   Advance   or that   any

proposed Advance, if made, would constitute a Nonrecoverable Advance.

 

         Nonsubserviced   Mortgage   Loan:   Any Mortgage Loan that, at the time of

reference thereto, is not subject to a Subservicing Agreement.

 

         Note Margin:   With respect to each   adjustable-rate   Mortgage Loan, the

fixed   percentage   set forth in the related   Mortgage   Note and indicated on the

Mortgage Loan Schedule as the "NOTE   MARGIN,"   which   percentage is added to the

Index on each   Adjustment   Date to determine   (subject to rounding in accordance

with the related   Mortgage Note, the Periodic Cap, the Maximum Mortgage Rate and

the Minimum   Mortgage   Rate) the interest rate to be borne by such Mortgage Loan

until the next Adjustment Date.

 

         Notional Amount: With respect to the Class SB Certificates or the REMIC

II Regular   Interest   SB-IO,   immediately   prior to any   Distribution   Date, the

aggregate   of the   Uncertificated   Principal   Balances   of the   REMIC I   Regular

Interests.

 

         Officers'   Certificate:   A   certificate   signed by the   Chairman of the

Board,   the President,   a Vice President,   Assistant Vice   President,   Director,

Managing Director,   the Treasurer,   the Secretary,   an Assistant Treasurer or an

Assistant Secretary of the Depositor or the Master Servicer, as the case may be,

and delivered to the Trustee, as required by this Agreement.

 

         Opinion of   Counsel:   A written   opinion of counsel   acceptable   to the

Trustee   and the   Master   Servicer   and which   counsel   may be   counsel   for the

Depositor   or the Master   Servicer,   provided   that any   Opinion of Counsel   (i)

referred to in the definition of "Disqualified Organization" or (ii) relating to

the qualification of any REMIC hereunder as a REMIC or compliance with the REMIC

Provisions   must,   unless   otherwise   specified,   be an opinion   of   Independent

counsel.

 

         Optional   Termination Date: Any Distribution Date on or after which the

Stated   Principal   Balance (after giving effect to   distributions   to be made on

such Distribution Date) of the Mortgage Loans is less than 10.00% of the Cut-off

Date Balance.

 

         Outstanding   Mortgage   Loan:   With   respect   to the Due Date in any Due

Period,   a Mortgage Loan (including an REO Property) that was not the subject of

a Principal Prepayment in Full, Cash Liquidation or REO Disposition and that was

not   purchased,   deleted or   substituted   for prior to such Due Date pursuant to

Section 2.02, 2.03, 2.04 or 4.07.

 

         Overcollateralization   Amount:   With respect to any Distribution   Date,

the   excess,   if any,   of (a) the   aggregate   Stated   Principal   Balance   of the

Mortgage Loans before giving effect to   distributions of principal to be made on

such Distribution Date over (b) the aggregate   Certificate   Principal Balance of

the Class A   Certificates   and Class M   Certificates   immediately   prior to such

date.

 

         Overcollateralization   Floor:   An amount   equal to the product of 0.50%

and the Cut-off Date Balance.

 

         Overcollateralization Increase Amount: With respect to any Distribution

Date,   the lesser of (a)   Excess   Cash Flow for that   Distribution   Date (to the

extent not used to cover the amounts   described   in clauses   (iv) and (v) of the

definition of Principal   Distribution   Amount as of such Distribution   Date) and

(b) the   excess   of (1)   the   Required   Overcollateralization   Amount   for   such

Distribution    Date   over   (2)   the    Overcollateralization    Amount    for   such

Distribution Date.

 

         Overcollateralization    Reduction    Amount:    With    respect    to    any

Distribution   Date on which the Excess   Overcollateralization   Amount is,   after

taking into   account   all other   distributions   to be made on such   Distribution

Date,   greater than zero, the   Overcollateralization   Reduction   Amount shall be

equal to the   lesser of (i) the   Excess   Overcollateralization   Amount   for that

Distribution Date and (ii) the Principal   Remittance Amount on such Distribution

Date.

 

         Ownership Interest:   With respect to any Certificate,   any ownership or

security   interest   in   such    Certificate,    including   any   interest   in   such

Certificate as the Holder thereof and any other interest therein, whether direct

or indirect, legal or beneficial, as owner or as pledgee.

 

         Pass-Through   Rate:   With respect to each Class of Class A Certificates

and Class M Certificates and any Distribution Date, the least of (i) a per annum

rate equal to LIBOR plus the related   Margin for such   Distribution   Date,   (ii)

14.000% per annum and (iii) the Net WAC Cap Rate for such Distribution Date.

 

         With respect to the Class SB Certificates and any Distribution   Date or

the REMIC II Regular   Interest   SB-IO,   a per annum rate equal to the percentage

equivalent   of a   fraction,   the   numerator   of which is the sum of the   amounts

calculated   pursuant to clauses (i) through (iii) below,   and the denominator of

which is the aggregate   principal balance of the REMIC I Regular Interests.   For

purposes of calculating the   Pass-Through   Rate for the Class SB Certificates or

the REMIC II Regular   Interest   SB-IO,   the numerator is equal to the sum of the

following components:

 

                  (i) the   Uncertificated   Pass-Through Rate for REMIC I Regular

         Interest   LT1 minus the   related   Marker   Rate,   applied   to a notional

         amount equal to the Uncertificated Principal Balance of REMIC I Regular

         Interest LT1;

 

                  (ii) the Uncertificated   Pass-Through Rate for REMIC I Regular

         Interest   LT2 minus the   related   Marker   Rate,   applied   to a notional

         amount equal to the Uncertificated Principal Balance of REMIC I Regular

         Interest LT2; and

 

                  (iii) the Uncertificated Pass-Through Rate for REMIC I Regular

         Interest LT4 minus twice the related Marker Rate, applied to a notional

         amount equal to the Uncertificated Principal Balance of REMIC I Regular

         Interest LT4.

 

         Paying Agent:   U.S. Bank National   Association or any successor   Paying

Agent appointed by the Trustee.

 

         Percentage Interest: With respect to any Class A Certificate or Class M

Certificate,   the undivided   percentage   ownership interest in the related Class

evidenced by such   Certificate,   which   percentage   ownership   interest shall be

equal to the   Initial   Certificate   Principal   Balance   thereof   divided   by the

aggregate   Initial   Certificate   Principal Balance of all of the Certificates of

the same Class.   The Percentage   Interest with respect to a Class SB Certificate

or Class R Certificate shall be stated on the face thereof.

 

         Periodic Cap: With respect to each   adjustable-rate   Mortgage Loan, the

periodic   rate cap that   limits the   increase   or the   decrease   of the   related

Mortgage   Rate on any   Adjustment   Date   pursuant   to the   terms of the   related

Mortgage Note.

 

         Permitted Investments:   One or more of the following:

 

         (i)       obligations   of or   guaranteed as to principal and interest by

                  the   United   States or any agency or   instrumentality   thereof

                  when such   obligations are backed by the full faith and credit

                  of the United States;

 

         (ii)      repurchase   agreements on obligations   specified in clause (i)

                  maturing not more than one month from the date of   acquisition

                   thereof,   provided that the unsecured obligations of the party

                  agreeing to repurchase such   obligations are at the time rated

                  by   each   Rating   Agency   in   its   highest   short-term   rating

                  available;

 

         (iii)     federal funds,   certificates of deposit, demand deposits, time

                  deposits   and bankers'   acceptances   (which shall each have an

                  original maturity of not more than 90 days and, in the case of

                   bankers'   acceptances,   shall   in no   event   have an   original

                  maturity of more than 365 days or a remaining maturity of more

                  than 30 days) denominated in United States dollars of any U.S.

                  depository institution or trust company incorporated under the

                  laws of the   United   States   or any   state   thereof   or of any

                  domestic branch of a foreign   depository   institution or trust

                  company; provided that the debt obligations of such depository

                  institution   or   trust   company   at the   date   of   acquisition

                  thereof   have been rated by each Rating   Agency in its highest

                  short-term   rating   available;   and, provided further that, if

                  the   original   maturity of such   short-term   obligations   of a

                  domestic branch of a foreign   depository   institution or trust

                  company shall exceed 30 days,   the   short-term   rating of such

                  institution   shall be A-1+ in the case of Standard & Poor's if

                  Standard & Poor's is a Rating Agency;

 

         (iv)      commercial paper and demand notes (having original   maturities

                  of not more   than 365   days) of any   corporation   incorporated

                  under the laws of the United States or any state thereof which

                  on the   date of   acquisition   has been   rated   by each   Rating

                  Agency in its highest   short term rating   available;   provided

                  that such   commercial   paper and   demand   notes   shall   have a

                  remaining maturity of not more than 30 days;

 

         (v)       a money   market fund or a qualified   investment   fund rated by

                  each Rating Agency in its highest   long-term   rating available

                  (which   may   be    managed   by   the    Trustee   or   one   of   its

                  Affiliates); and

 

         (vi)      other   obligations   or securities   that are acceptable to each

                  Rating Agency as a Permitted Investment hereunder and will not

                  reduce the rating   assigned   to any Class of   Certificates   by

                  such Rating Agency below the   then-current   rating assigned to

                  such   Certificates   by such Rating   Agency,   as   evidenced   in

                  writing;

 

provided,   however,   that no   instrument   shall be a Permitted   Investment if it

represents,   either (1) the right to receive only interest payments with respect

to the underlying debt instrument or (2) the right to receive both principal and

interest   payments derived from   obligations   underlying such instrument and the

principal and interest payments with respect to such instrument   provide a yield

to maturity greater than 120% of the yield to maturity at par of such underlying

obligations.   References   herein to the highest   rating   available   on unsecured

long-term   debt shall   mean AAA in the case of   Standard & Poor's and Aaa in the

case of Moody's,   and for purposes of this Agreement,   any references   herein to

the highest rating   available on unsecured   commercial paper and short-term debt

obligations   shall mean the following:   A-1 in the case of Standard & Poor's and

P-1 in the case of Moody's;   provided,   however,   that any Permitted   Investment

that is a short-term debt obligation rated A-1 by Standard & Poor's must satisfy

the   following   additional   conditions:   (i) the   total   amount of debt from A-1

issuers   must be limited to the   investment   of monthly   principal   and interest

payments   (assuming fully amortizing   collateral);   (ii) the total amount of A-1

investments   must   not   represent   more   than 20% of the   aggregate   outstanding

Certificate   Principal   Balance of the Certificates and each investment must not

mature   beyond 30 days;   (iii)   the terms of the debt must have a   predetermined

fixed dollar amount of principal   due at maturity that cannot vary;   and (iv) if

the investments may be liquidated prior to their maturity or are being relied on

to meet a certain yield,   interest must be tied to a single   interest rate index

plus a single   fixed   spread   (if any) and must move   proportionately   with that

index.   Any Permitted   Investment   may be purchased by or through the Trustee or

its Affiliates.

 

         Permitted   Transferee:   Any Transferee of a Class R Certificate,   other

than a Disqualified Organization or Non-United States Person.

 

         Person:   Any   individual,    corporation,    limited   liability   company,

partnership,    joint    venture,    association,    joint-stock    company,    trust,

unincorporated organization or government or any agency or political subdivision

thereof.

 

         Prepayment   Assumption:   With respect to the Class A   Certificates   and

Class M Certificates,   the prepayment   assumption to be used for determining the

accrual of original   issue   discount   and   premium   and market   discount on such

Certificates   for federal   income tax   purposes,   which (a) with   respect to the

fixed-rate   Mortgage Loans,   assumes a constant   prepayment rate of one-tenth of

23% per annum of the then outstanding Stated Principal Balance of the fixed-rate

Mortgage   Loans in the   first   month of the life of such   Mortgage   Loans and an

additional   one-tenth of 23% per annum in each month   thereafter until the tenth

month, and beginning in the tenth month and in each month thereafter   during the

life of the fixed-rate   Mortgage   Loans, a constant   prepayment   rate of 23% per

annum   each   month   ("23%   HEP")   and (b) with   respect   to the   adjustable-rate

Mortgage Loans assumes a prepayment   assumption of 2% of the constant prepayment

rate in month one,   increasing by approximately   2.545% from month 2 until month

12, a   constant   prepayment   rate of 30% from   month 12 to month 22, a   constant

prepayment rate of 50% from month 23 to month 27, and a constant prepayment rate

of 35%   thereafter,   used for determining the accrual of original issue discount

and   premium   and   market   discount   on the   Class A   Certificates   and   Class M

Certificates   for federal   income tax   purposes.   The constant   prepayment   rate

assumes that the stated   percentage of the outstanding   Stated Principal Balance

of the adjustable-rate Mortgage Loans is prepaid over the course of a year.

 

         Prepayment   Interest   Shortfall:   With respect to any Distribution Date

and any Mortgage   Loan (other than a Mortgage   Loan relating to an REO Property)

that was the   subject of (a) a Principal   Prepayment   in Full during the related

Prepayment   Period, an amount equal to the excess of one month's interest at the

related   Net   Mortgage   Rate (or   Modified   Net   Mortgage   Rate in the case of a

Modified   Mortgage Loan) on the Stated   Principal   Balance of such Mortgage Loan

over the amount of   interest   (adjusted   to the related   Net   Mortgage   Rate (or

Modified Net Mortgage Rate in the case of a Modified Mortgage Loan)) paid by the

Mortgagor for such Prepayment Period to the date of such Principal Prepayment in

Full or (b) a Curtailment   during the prior calendar   month,   an amount equal to

one month's   interest at the related Net Mortgage Rate (or Modified Net Mortgage

Rate in the case of a Modified Mortgage Loan) on the amount of such Curtailment.

 

         Prepayment Period:   With respect to any Distribution Date, the calendar

month preceding the month of distribution.

 

         Primary   Insurance   Policy:   Each primary   policy of mortgage   guaranty

insurance as indicated by a numeric code on the Mortgage   Loan Schedule with the

exception of code "A23," "A34" or "A96" under the column "MI CO CODE."

 

         Principal   Distribution   Amount: With respect to any Distribution Date,

the   lesser of (a) the excess of (x) the sum of (A) the   Available   Distribution

Amount   and (B) with   respect   to   clauses   (b)(v)   and (vi)   below,   the   Yield

Maintenance   Agreement Payment for that Distribution Date, over (y) the Interest

Distribution Amount, and (b) the sum of:

 

(i)            the principal portion of each Monthly Payment received or Advanced

              with   respect   to the   related   Due   Period   on   each   Outstanding

              Mortgage Loan;

 

(ii)           the Stated   Principal   Balance of any   Mortgage   Loan   repurchased

              during the   related   Prepayment   Period (or deemed to have been so

              repurchased   in   accordance   with   Section   3.07(b))   pursuant   to

              Section 2.02,   2.03,   2.04 or 4.07 and the amount of any shortfall

              deposited   in   the   Custodial    Account   in   connection   with   the

              substitution   of a Deleted   Mortgage Loan pursuant to Section 2.03

              or 2.04 during the related Prepayment Period;

 

(iii)          the principal portion of all other unscheduled collections,   other

              than   Subsequent   Recoveries,   on the Mortgage   Loans   (including,

              without limitation,   Principal Prepayments in Full,   Curtailments,

              Insurance   Proceeds,    Liquidation    Proceeds   and   REO   Proceeds)

              received during the related   Prepayment   Period (or deemed to have

              been so received) to the extent applied by the Master   Servicer as

              recoveries of principal of the Mortgage   Loans pursuant to Section

              3.14;

 

(iv)           the lesser of (1) Subsequent Recoveries for such Distribution Date

              and (2) the principal   portion of any Realized Losses allocated to

              any   Class   of   Certificates   on a   prior   Distribution   Date   and

              remaining unpaid;

 

(v)             the lesser of (1) the Excess Cash Flow for such   Distribution Date

              (to the extent not used pursuant to clause (iv) of this definition

              on such   Distribution   Date) and (2) the principal   portion of any

              Realized   Losses incurred (or deemed to have been incurred) on any

              Mortgage Loans in the calendar month   preceding such   Distribution

              Date; and

 

(vi)           the lesser of (1) the Excess Cash Flow for that   Distribution Date

               (to the extent not used   pursuant to clauses   (iv) and (v) of this

              definition     on    such     Distribution     Date)    and    (2)    the

              Overcollateralization Increase Amount for such Distribution Date;

 

minus

 

(vii)          (A) the amount of any   Overcollateralization   Reduction Amount for

              such   Distribution   Date and (B) the amount of any   Capitalization

              Reimbursement Amount for such Distribution Date.

 

         Principal   Prepayment:   Any payment of principal or other recovery on a

Mortgage Loan,   including a recovery that takes the form of Liquidation Proceeds

or Insurance   Proceeds,   which is received in advance of its   scheduled Due Date

and is not   accompanied   by an   amount   as to   interest   representing   scheduled

interest   on such   payment   due on any   date or dates   in any   month   or   months

subsequent to the month of prepayment.

 

         Principal   Prepayment   in   Full:   Any   Principal   Prepayment   made by a

Mortgagor of the entire principal balance of a Mortgage Loan.

 

         Principal Remittance Amount: With respect to any Distribution Date, all

amounts described in clauses (b)(i) through (iii) of the definition of Principal

Distribution Amount for that Distribution Date.

 

         Program   Guide:   The   AlterNet   Seller Guide as   incorporated   into the

Residential    Funding   Seller   Guide   for   mortgage    collateral    sellers   that

participate in Residential   Funding's AlterNet Mortgage Program, and Residential

Funding's   Servicing   Guide   and   any   other   subservicing    arrangements   which

Residential   Funding has arranged to   accommodate   the servicing of the Mortgage

Loans and in each case all   supplements   and   amendments   thereto   published   by

Residential Funding.

 

         Purchase   Price:   With respect to any Mortgage   Loan (or REO   Property)

required to be or   otherwise   purchased   on any date   pursuant to Section   2.02,

2.03,   2.04 or   4.07,   an   amount   equal   to the sum of (i)   100% of the   Stated

Principal Balance thereof plus the principal portion of any related unreimbursed

Advances and (ii) unpaid   accrued   interest at either (a) the Adjusted   Mortgage

Rate (or   Modified Net Mortgage   Rate in the case of a Modified   Mortgage   Loan)

plus the rate per annum at which the Servicing Fee is calculated,   or (b) in the

case of a purchase   made by the Master   Servicer,   at the Net Mortgage   Rate (or

Modified Net Mortgage   Rate in the case of a Modified   Mortgage   Loan),   in each

case on the   Stated   Principal   Balance   thereof   to the   first day of the month

following   the month of purchase   from the Due Date to which   interest   was last

paid by the   Mortgagor.   With   respect to any   Mortgage   Loan (or REO   Property)

required to be or otherwise   purchased on any date   pursuant to Section 4.08, an

amount   equal to the greater of (i) the sum of (a) 100% of the Stated   Principal

Balance thereof plus the principal portion of any related unreimbursed   Advances

of such   Mortgage   Loan (or REO   Property)   and (b) unpaid   accrued   interest at

either (1) the Adjusted Mortgage Rate (or Modified Net Mortgage Rate in the case

of a Modified   Mortgage Loan) plus the rate per annum at which the Servicing Fee

is calculated,   or (2) in the case of a purchase made by the Master Servicer, at

the Net Mortgage   Rate (or Modified Net Mortgage   Rate in the case of a Modified

Mortgage   Loan),   in each case on the Stated   Principal   Balance   thereof to the

first day of the month   following   the   month of   purchase   from the Due Date to

which interest was last paid by the Mortgagor, and (ii) the fair market value of

such Mortgage Loan (or REO Property).

 

         Qualified   Substitute   Mortgage   Loan: A Mortgage Loan   substituted   by

Residential   Funding or the Depositor for a Deleted Mortgage Loan which must, on

the   date   of   such   substitution,   as   confirmed   in an   Officers'   Certificate

delivered to the   Trustee,   (i) have an   outstanding   principal   balance,   after

deduction of the   principal   portion of the monthly   payment due in the month of

substitution   (or in the case of a   substitution   of more than one Mortgage Loan

for a Deleted Mortgage Loan, an aggregate outstanding   principal balance,   after

such deduction),   not in excess of the Stated   Principal   Balance of the Deleted

Mortgage   Loan (the   amount of any   shortfall   to be   deposited   by   Residential

Funding,   in the Custodial   Account in the month of   substitution);   (ii) have a

Mortgage   Rate and a Net   Mortgage   Rate no lower   than and not more than 1% per

annum higher than the Mortgage Rate and Net Mortgage Rate, respectively,   of the

Deleted Mortgage Loan as of the date of substitution; (iii) have a Loan-to-Value

Ratio at the time of   substitution   no higher than that of the Deleted   Mortgage

Loan at the time of substitution;   (iv) have a remaining term to stated maturity

not   greater   than (and not more than one year less   than)   that of the   Deleted

Mortgage   Loan;   (v) comply with each   representation   and warranty set forth in

Sections 2.03 and 2.04 hereof and Section 4 of the Assignment Agreement,   (other

than the   representations   and   warranties set forth therein with respect to the

number of loans (including the related   percentage) in excess of zero which meet

or do not meet a specified   criteria);   (vi) not be 30 days or more   Delinquent;

(vii) not be subject to the   requirements of HOEPA (as defined in the Assignment

Agreement); (viii) have a policy of title insurance, in the form and amount that

is in material   compliance with the Program Guide,   that was effective as of the

closing of such Mortgage   Loan, is valid and binding,   and remains in full force

and effect,   unless the Mortgage   Property is located in the State of Iowa where

an attorney's   certificate   has been provided as described in the Program Guide;

(ix) if the Deleted Loan is not a Balloon Loan,   not be a Balloon Loan; (x) with

respect to   adjustable   rate Mortgage   Loans,   have a Mortgage Rate that adjusts

with the same   frequency   and based upon the same   Index as that of the   Deleted

Mortgage Loan; (xi) with respect to adjustable rate Mortgage Loans,   have a Note

Margin not less than that of the Deleted   Mortgage   Loan;   (xii) with respect to

adjustable rate Mortgage   Loans,   have a Periodic Rate Cap that is equal to that

of the Deleted   Mortgage Loan;   (xiii) with respect to adjustable   rate Mortgage

Loans,   have a next Adjustment   Date no later than that of the Deleted   Mortgage

Loan,   and (xiv) be secured by a lien with the same lien priority as the Deleted

Loan.

 

         Rating Agency:   Each of Standard & Poor's and Moody's. If any agency or

a successor is no longer in existence, "Rating Agency" shall be such statistical

credit rating agency, or other comparable   Person,   designated by the Depositor,

notice   of   which   designation   shall be given   to the   Trustee   and the   Master

Servicer.

 

         Realized Loss:   With respect to each Mortgage Loan (or REO Property) as

to which a Cash Liquidation or REO Disposition has occurred, an amount (not less

than zero) equal to (i) the Stated   Principal   Balance of the Mortgage   Loan (or

REO Property) as of the date of Cash Liquidation or REO   Disposition,   plus (ii)

interest   (and REO Imputed   Interest,   if any) at the Net Mortgage Rate from the

Due Date as to which interest was last paid or advanced to Certificateholders up

to the last day of the month in which the Cash   Liquidation (or REO Disposition)

occurred on the Stated Principal Balance of such Mortgage Loan (or REO Property)

outstanding   during each Due Period that such interest was not paid or advanced,

minus (iii) the proceeds,   if any,   received during the month in which such Cash

Liquidation (or REO Disposition)   occurred,   to the extent applied as recoveries

of interest at the Net Mortgage Rate and to principal of the Mortgage   Loan, net

of the portion   thereof   reimbursable   to the Master Servicer or any Subservicer

with respect to related   Advances,   Servicing   Advances or other   expenses as to

which the Master Servicer or Subservicer is entitled to reimbursement thereunder

but which have not been   previously   reimbursed.   With respect to each   Mortgage

Loan which is the   subject of a   Servicing   Modification,   (a) (1) the amount by

which the interest portion of a Monthly Payment or the principal balance of such

Mortgage   Loan was reduced or (2) the sum of any other   amounts   owing under the

Mortgage Loan that were forgiven and that constitute Servicing Advances that are

reimbursable   to the Master   Servicer or a Subservicer,   and (b) any such amount

with   respect to a Monthly   Payment that was or would have been due in the month

immediately   following the month in which a Principal Prepayment or the Purchase

Price of such Mortgage Loan is received or is deemed to have been received. With

respect   to each   Mortgage   Loan which has   become   the   subject of a   Deficient

Valuation,   the   difference   between the principal   balance of the Mortgage Loan

outstanding   immediately   prior to such   Deficient   Valuation   and the principal

balance of the Mortgage Loan as reduced by the Deficient Valuation. With respect

to each Mortgage   Loan which has become the object of a Debt Service   Reduction,

the amount of such Debt Service Reduction.   Notwithstanding the above, neither a

Deficient Valuation nor a Debt Service Reduction shall be deemed a Realized Loss

hereunder   so long as the Master   Servicer   has   notified the Trustee in writing

that the Master   Servicer is diligently   pursuing any remedies that may exist in

connection   with the   representations   and warranties made regarding the related

Mortgage   Loan and either (A) the related   Mortgage   Loan is not in default with

regard to payments due   thereunder or (B)   delinquent   payments of principal and

interest   under the related   Mortgage   Loan and any   premiums on any   applicable

primary hazard   insurance   policy and any related escrow   payments in respect of

such Mortgage Loan are being advanced on a current basis by the Master   Servicer

or a   Subservicer,   in either case   without   giving   effect to any Debt   Service

Reduction.

 

         Realized   Losses   allocated   to the   Class   SB   Certificates   shall   be

allocated   first to the REMIC II   Regular   Interest   SB-IO in   reduction   of the

accrued but unpaid interest thereon until such accrued and unpaid interest shall

have been   reduced   to zero and then to the REMIC II Regular   Interest   SB-PO in

reduction of the Principal Balance thereof.

 

         To the extent the Master Servicer receives   Subsequent   Recoveries with

respect to any Mortgage   Loan,   the amount of the Realized   Loss with respect to

that Mortgage Loan will be reduced to the extent such   recoveries are applied to

reduce the   Certificate   Principal   Balance of any Class of   Certificates on any

Distribution Date.

 

         Record   Date:   With   respect   to each   Distribution   Date and the LIBOR

Certificates,   the Business Day immediately   preceding such   Distribution   Date.

With   respect to each   Distribution   Date and the   Certificates   (other than the

LIBOR Certificates), the close of business on the last Business Day of the month

next preceding the month in which the related   Distribution Date occurs,   except

in the case of the first Record Date which shall be the Closing Date.

 

         Reference Bank Rate:   As defined in Section 1.02.

 

         Regular   Certificates:   The Class A Certificates,   Class M Certificates

and Class SB Certificates.

 

         Relief Act: The Servicemembers   Civil Relief Act, formerly known as the

Soldiers' and Sailors' Civil Relief Act of 1940.

 

         Relief   Act   Shortfalls:   Interest   shortfalls   on the   Mortgage   Loans

resulting from the Relief Act or similar legislation or regulations.

 

         REMIC: A "real estate mortgage   investment   conduit" within the meaning

of Section 860D of the Code. As used herein, the term "REMIC" shall mean REMIC I

or REMIC II.

 

         REMIC Administrator:   Residential Funding   Corporation.   If Residential

Funding   Corporation is found by a court of competent   jurisdiction to no longer

be able to fulfill its obligations as REMIC   Administrator   under this Agreement

the Master Servicer or Trustee acting as successor Master Servicer shall appoint

a   successor    REMIC    Administrator,    subject   to    assumption   of   the   REMIC

Administrator obligations under this Agreement.

 

         REMIC I: The segregated pool of assets subject   hereto,   constituting a

portion of the primary trust created   hereby and to be   administered   hereunder,

exclusive of the Yield Maintenance Agreement, which are not assets of any REMIC,

with respect to which a separate REMIC election is to be made, consisting of:

 

                  (i) the Mortgage Loans and the related Mortgage Files;

 

                  (ii)   all   payments   on   and   collections   in   respect   of the

         Mortgage Loans due after the Cut-off Date (other than Monthly   Payments

         due in the month of the   Cut-off   Date) as shall be on   deposit   in the

         Custodial   Account or in the   Certificate   Account   and   identified   as

         belonging to the Trust Fund;

 

                  (iii)   property   which   secured a Mortgage   Loan and which has

         been acquired for the benefit of the   Certificateholders by foreclosure

         or deed in lieu of foreclosure;

 

                  (iv) the   hazard   insurance   policies   and   Primary   Insurance

         Policies pertaining to the Mortgage Loans, if any; and

 

                   (v) all proceeds of clauses (i) through (iv) above.

 

         REMIC I Distribution   Amount:   For any Distribution Date, the Available

Distribution   Amount shall be distributed   to the REMIC I Regular   Interests and

the Class R-I Certificates in the following amounts and priority:

 

                  (i) to the extent of the   Available   Distribution   Amount,   to

REMIC II as the holder of REMIC I Regular   Interests   LT1, LT2, LT3 and LT4, pro

rata, in an amount equal to (A) their   Uncertificated   Accrued Interest for such

Distribution Date, plus (B) any amounts in respect thereof remaining unpaid from

previous Distribution Dates; and

 

                  (ii)   to the   extent   of   the   Available   Distribution   Amount

remaining after the distributions made pursuant to clause (i) above, to REMIC II

as the holder of the REMIC I Regular Interests, in an amount equal to:

 

                           (A) in respect of the REMIC I Regular   Interests LT2,

LT3 and LT4, their respective

Principal Distribution Amounts;

 

                           (B) in   respect of the REMIC I Regular   Interest   LT1

any remainder until the

Uncertificated Principal Balance thereof is reduced to zero;

 

                           (C) any   remainder   in respect of the REMIC I Regular

Interests LT2, LT3 and LT4,

pro rata   according to their   respective   Uncertificated   Principal   Balances as

reduced by the   distributions   deemed made   pursuant   to (A) above,   until their

respective Uncertificated Principal Balances are reduced to zero; and

 

                  (iii) any   remaining   amounts to the   Holders of the Class R-I

Certificates.

 

         REMIC I Principal   Reduction   Amounts:   For any Distribution   Date, the

amounts by which the principal   balances of the REMIC I Regular   Interests   LT1,

LT2, LT3 and LT4, respectively, will be reduced on such Distribution Date by the

allocation of Realized Losses and the   distribution of principal,   determined as

follows:

 

         For purposes of the   succeeding   formulas the   following   symbols shall

have the meanings set forth below:

 

         Y1 = the aggregate   principal   balance of the REMIC I Regular   Interest

LT1 after distributions on the prior Distribution Date.

 

         Y2 = the   principal   balance of the REMIC I Regular   Interest LT2 after

distributions on the prior Distribution Date.

 

         Y3 = the   principal   balance of the REMIC I Regular   Interest LT3 after

distributions on the prior Distribution Date.

 

         Y4 = the   principal   balance of the REMIC I Regular   Interest LT4 after

distributions on the prior Distribution Date (note: Y3 = Y4).

 

         AY1 = the REMIC I Regular Interest LT1 Principal Reduction Amount.

 

         AY2 = the REMIC I Regular Interest LT2 Principal Reduction Amount.

 

         AY3 = the REMIC I Regular Interest LT3 Principal Reduction Amount.

 

         AY4 = the REMIC I Regular Interest LT4 Principal Reduction Amount.

 

         P0 = the aggregate   principal   balance of the REMIC I Regular Interests

LT1, LT2, LT3 and LT4 after   distributions and the allocation of Realized Losses

on the prior Distribution Date.

 

         P1 = the aggregate   principal   balance of the REMIC I Regular Interests

LT1, LT2, LT3 and LT4 after   distributions and the allocation of Realized Losses

to be made on such Distribution Date.

 

         AP = P0 - P1 = the aggregate of the REMIC I Regular Interests LT1, LT2,

LT3 and LT4 Principal Reduction Amounts.

 

               = the aggregate of the principal   portions of Realized   Losses to

be allocated to, and the principal distributions to be made on, the Certificates

on such   Distribution   Date   (including   distributions   of   accrued   and   unpaid

interest on the Class SB Certificates for prior Distribution Dates).

 

         R0 = the Net WAC Cap Rate   (stated   as a   monthly   rate)   after   giving

effect   to   amounts   distributed   and   Realized   Losses   allocated   on the prior

Distribution Date.

 

         R1 = the Net WAC Cap Rate   (stated   as a   monthly   rate)   after   giving

effect to amounts to be distributed   and Realized Losses to be allocated on such

Distribution Date.

 

         a = (Y2 + Y3)/P0. The initial value of a on the Closing Date for use on

the first Distribution Date shall be 0.0001.

 

         a0 = the lesser of (A) the sum for all Classes of   Certificates,   other

than the Class SB Certificates, of the product for each Class of (i) the monthly

interest   rate (as limited by the REMIC Net WAC Rate,   if   applicable)   for such

Class applicable for distributions to be made on such Distribution Date and (ii)

the aggregate   Certificate   Principal Balance for such Class after distributions

and the   allocation of Realized   Losses on the prior   Distribution   Date and (B)

R0*P0.

 

         a1 = the lesser of (A) the sum for all Classes of   Certificates,   other

than the Class SB Certificates, of the product for each Class of (i) the monthly

interest rate (as limited by the Net WAC Cap Rate, if applicable) for such Class

applicable for distributions to be made on the next succeeding Distribution Date

and (ii) the   aggregate   Certificate   Principal   Balance   for such   Class   after

distributions   and   the   allocation   of   Realized   Losses   to be   made   on   such

Distribution Date and (B) R1*P1.

 

         Then, based on the foregoing definitions:

 

         AY1 =     AP - AY2 - AY3 - AY4;

 

         AY2 =     a{ a0R1P1 - a1R0P0}/{2R1R0P1 -   a1R0};

 

         AY3 =     aAP - AY2; and

 

         AY4 =     AY3.

 

if both AY2 and AY3, as so determined, are non-negative numbers. Otherwise:

 

         (1) If AY2, as so determined, is negative, then

 

         AY2 = 0;

 

         AY3 = a{a1R0P0 - a0R1P1}/{a1R0};

 

         AY4 = AY3; and

 

         AY1 = AP - AY2 - AY3 - AY4.

 

         (2) If AY3, as so determined, is negative, then

 

         AY3 = 0;

 

         AY2 = a{a1R0P0 - a0R1P1}/{2R1R0P1 -   a1R0};

 

         AY4 = AY3; and

 

         AY1 = AP - AY2 - AY3 - AY4.

 

 

 

         REMIC I Realized Losses: Realized Losses on the Mortgage Loans shall be

allocated to the REMIC I Regular   Interests as follows:   The interest portion of

Realized   Losses on the Mortgage   Loans,   if any,   shall be allocated   among the

REMIC I Regular   Interests   LT1, LT2 and LT4 pro rata according to the amount of

interest accrued but unpaid thereon, in reduction thereof.   Any interest portion

of such   Realized   Losses in   excess of the   amount   allocated   pursuant   to the

preceding   sentence shall be treated as a principal   portion of Realized   Losses

not   attributable   to any specific   Mortgage Loan and allocated   pursuant to the

succeeding   sentences.   The principal portion of Realized Losses on the Mortgage

Loans, if any, shall be allocated   first, to the REMIC I Regular   Interests LT2,

LT3 and LT4 pro rata according to their respective   Principal   Reduction Amounts

to the extent thereof in reduction of the   Uncertificated   Principal   Balance of

such REMIC I Regular   Interests   and,   second,   the   remainder,   if any, of such

principal   portion of such   Realized   Losses   shall be   allocated to the REMIC I

Regular   Interest   LT1 in   reduction   of the   Uncertificated   Principal   Balance

thereof.

 

         REMIC I Regular   Interests:   REMIC I   Regular   Interest   LT1,   REMIC II

Regular   Interest   LT2,   REMIC II   Regular   Interest   LT3 and   REMIC II   Regular

Interest LT4.

 

         REMIC I Regular   Interest   LT1: A regular   interest   in REMIC I that is

held as an asset of REMIC II, that has an initial principal balance equal to the

related   Uncertificated   Principal   Balance,   that bears interest at the related

Uncertificated   REMIC I Pass-Through   Rate, and that has such other terms as are

described herein.

 

          REMIC I Regular   Interest LT1 Principal   Distribution   Amount:   For any

Distribution   Date,   the   excess,   if any, of the REMIC I Regular   Interest   LT1

Principal   Reduction Amount for such   Distribution Date over the Realized Losses

allocated to the REMIC I Regular Interest LT1 on such Distribution Date.

 

         REMIC I Regular   Interest   LT2: A regular   interest   in REMIC I that is

held as an asset of REMIC II, that has an initial principal balance equal to the

related   Uncertificated   Principal   Balance,   that bears interest at the related

Uncertificated   REMIC I Pass-Through   Rate, and that has such other terms as are

described herein.

 

         REMIC I Regular   Interest LT2 Principal   Distribution   Amount:   For any

Distribution   Date,   the   excess,   if any, of the REMIC I Regular   Interest   LT2

Principal   Reduction Amount for such   Distribution Date over the Realized Losses

allocated to the REMIC I Regular Interest LT2 on such Distribution Date.

 

         REMIC I Regular   Interest   LT3: A regular   interest in REMIC II that is

held as an asset of REMIC II, that has an initial principal balance equal to the

related   Uncertificated   Principal   Balance,   that bears interest at the related

Uncertificated   REMIC I Pass-Through   Rate, and that has such other terms as are

described herein.

 

         REMIC I Regular   Interest LT3 Principal   Distribution   Amount:   For any

Distribution   Date,   the   excess,   if any, of the REMIC I Regular   Interest   LT3

Principal   Reduction Amount for such   Distribution Date over the Realized Losses

allocated to the REMIC I Regular Interest LT3 on such Distribution Date.

 

         REMIC I Regular   Interest   LT4: A regular   interest in REMIC II that is

held as an asset of REMIC II, that has an initial principal balance equal to the

related   Uncertificated   Principal   Balance,   that bears interest at the related

Uncertificated   REMIC I Pass-Through   Rate, and that has such other terms as are

described herein.

 

         REMIC I Regular   Interest LT4 Principal   Distribution   Amount:   For any

Distribution   Date,   the   excess,   if any, of the REMIC I Regular   Interest   LT4

Principal   Reduction Amount for such   Distribution Date over the Realized Losses

allocated to the REMIC I Regular Interest LT4 on such Distribution Date.

 

          REMIC II: The segregated pool of assets subject hereto,   constituting a

portion of the primary trust created   hereby and to be   administered   hereunder,

with respect to which a separate REMIC election is to be made, consisting of the

REMIC I Regular Interests.

 

         REMIC II Regular Interest SB-PO: A separate non-certificated beneficial

ownership   interest in REMIC II issued   hereunder   and   designated as a REMIC II

Regular   Interest.   REMIC II Regular Interest SB-PO shall have no entitlement to

interest,   and shall be entitled to   distributions   of principal   subject to the

terms   and   conditions    hereof,   in   aggregate   amount   equal   to   the   initial

Certificate   Principal   Balance of the Class SB Certificates as set forth in the

Preliminary Statement hereto.

 

         REMIC II Regular Interest SB-IO: A separate non-certificated beneficial

ownership   interest in REMIC II issued   hereunder   and   designated as a REMIC II

Regular   Interest.   REMIC II Regular Interest SB-IO shall have no entitlement to

principal,   and shall be entitled to   distributions   of interest   subject to the

terms   and   conditions   hereof,   in   aggregate