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STANDARD TERMS OF POOLING AND SERVICING AGREEMENT

Pooling and Servicing Agreement

STANDARD TERMS OF

                         POOLING AND SERVICING AGREEMENT | Document Parties: RFMSI SERIES 2006-S8 TRUST | RESIDENTIAL FUNDING MORTGAGE SECURITIES I, INC., | RESIDENTIAL FUNDING CORPORATION, | U.S. BANK NATIONAL ASSOCIATION, You are currently viewing:
This Pooling and Servicing Agreement involves

RFMSI SERIES 2006-S8 TRUST | RESIDENTIAL FUNDING MORTGAGE SECURITIES I, INC., | RESIDENTIAL FUNDING CORPORATION, | U.S. BANK NATIONAL ASSOCIATION,

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Title: STANDARD TERMS OF POOLING AND SERVICING AGREEMENT
Governing Law: New York     Date: 10/13/2006

STANDARD TERMS OF

                         POOLING AND SERVICING AGREEMENT, Parties: rfmsi series 2006-s8 trust , residential funding mortgage securities i  inc.  , residential funding corporation  , u.s. bank national association
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                       RESIDENTIAL FUNDING MORTGAGE SECURITIES I, INC.,

                                    Company,

                        RESIDENTIAL FUNDING CORPORATION,

                                Master Servicer,

                                       and

                         U.S. BANK NATIONAL ASSOCIATION,

                                     Trustee

                               SERIES SUPPLEMENT,

                           DATED AS OF SEPTEMBER 1, 2006

                                       TO

                                STANDARD TERMS OF

                         POOLING AND SERVICING AGREEMENT

                          DATED AS OF SEPTEMBER 1, 2006

                       Mortgage Pass-Through Certificates

                                 Series 2006-S8




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<TABLE>
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<S>                                                                                         <C>
ARTICLE I          DEFINITIONS...............................................................6

        Section 1.01       Definitions.......................................................6

        Section 1.02       Use of Words and Phrases.........................................19

        Section 1.03       Determination of LIBOR...........................................20

ARTICLE II         ARTICLE II CONVEYANCE OF MORTGAGE LOANS; ORIGINAL ISSUANCE OF
                  CERTIFICATES.............................................................22

        Section 2.01       Conveyance of Mortgage Loans.....................................22

        Section 2.02       Acceptance by Trustee............................................22

        Section 2.03       Representations, Warranties and Covenants of the Master
                          Servicer and the Company.........................................22

        Section 2.04       Representations and Warranties of Residential Funding............25

        Section 2.05        Execution and Authentication of Class R-I Certificates...........25

        Section 2.06       Conveyance of Uncertificated REMIC I and REMIC II Regular
                          Interests; Acceptance by the Trustee.............................25

         Section 2.07       Issuance of Certificates Evidencing Interest in REMIC II.........25

        Section 2.08       Purposes and Powers of the Trust.................................26

        Section 2.09       Agreement Regarding Ability to Disclose..........................26

ARTICLE III        ADMINISTRATION AND SERVICING OF MORTGAGE LOANS...........................27

        Section 3.01       Master Servicer to Act as Servicer...............................27

        Section 3.02       Subservicing Agreements Between Master Servicer and
                          Subservicers; Enforcement of Subservicers' and Sellers'
                          Obligations......................................................27

        Section 3.03       Successor Subservicers...........................................28

        Section 3.04       Liability of the Master Servicer.................................28

        Section 3.05       No Contractual Relationship Between Subservicer and Trustee
                           or Certificateholders............................................28

        Section 3.06       Assumption or Termination of Subservicing Agreements by
                          Trustee..........................................................28

        Section 3.07       Collection of Certain Mortgage Loan Payments; Deposits to
                          Custodial Account................................................28

        Section 3.08       Subservicing Accounts; Servicing Accounts........................28

        Section 3.09       Access to Certain Documentation and Information Regarding
                          the Mortgage Loans...............................................28

        Section 3.10       Permitted Withdrawals from the Custodial Account.................28

        Section 3.11       Maintenance of the Primary Insurance Policies; Collections
                          Thereunder.......................................................28

        Section 3.12       Maintenance of Fire Insurance and Omissions and Fidelity
                          Coverage.........................................................28

        Section 3.13       Enforcement of Due-on-Sale Clauses; Assumption and
                          Modification Agreements; Certain Assignments.....................28

        Section 3.14       Realization Upon Defaulted Mortgage Loans........................28

        Section 3.15       Trustee to Cooperate; Release of Custodial Files.................28

        Section 3.16       Servicing and Other Compensation; Compensating Interest..........28

        Section 3.17       Reports to the Trustee and the Company...........................28

        Section 3.18       Annual Statement as to Compliance................................29

        Section 3.19       Annual Independent Public Accountants' Servicing Report..........29

        Section 3.20       Rights of the Company in Respect of the Master Servicer..........29

        Section 3.21       Administration of Buydown Funds..................................29

        Section 3.22       Advance Facility.................................................29

ARTICLE IV         PAYMENTS TO CERTIFICATEHOLDERS...........................................30

        Section 4.01       Certificate Account..............................................30

        Section 4.02       Distributions....................................................30

        Section 4.03       Statements to Certificateholders; Statements to Rating
                           Agencies; Exchange Act Reporting.................................39

        Section 4.04       Distribution of Reports to the Trustee and the Company;
                          Advances by the Master Servicer..................................39

        Section 4.05       Allocation of Realized Losses....................................39

        Section 4.06       Reports of Foreclosures and Abandonment of Mortgaged Property....40

        Section 4.07       Optional Purchase of Defaulted Mortgage Loans....................40

        Section 4.08       Surety Bond......................................................40

        Section 4.09       The Yield Maintenance Agreement..................................40

        Section 4.10       Reserve Fund.....................................................41

ARTICLE V          THE CERTIFICATES (SEE ARTICLE V OF THE STANDARD TERMS)...................43

ARTICLE VI         THE COMPANY AND THE MASTER SERVICER......................................44

         Section 6.01       Respective Liabilities of the Company and Master Servicer........44

        Section 6.02       Merger or Consolidation of the Company or Master Servicer;
                          Assignment of Rights and Delegation of Duties by Master
                          Servicer.........................................................44

        Section 6.03       Limitation on Liability of the Company, Master Servicer and
                          Others...........................................................44

        Section 6.04       Company and Master Servicer Not to Resign........................44

ARTICLE VII        DEFAULT (SEE ARTICLE VII OF THE STANDARD TERMS)..........................45

ARTICLE VIII       CONCERNING THE TRUSTEE (SEE ARTICLE VIII OF THE STANDARD TERMS)..........46

ARTICLE IX         TERMINATION OR OPTIONAL PURCHASE OF ALL CERTIFICATES.....................47

        Section 9.01       Optional Purchase by the Master Servicer of All
                          Certificates; Termination Upon Purchase by the Master
                          Servicer or Liquidation of All Mortgage Loans....................47

        Section 9.02       Additional Termination Requirements..............................47

        Section 9.03        Termination of Multiple REMICs...................................47

ARTICLE X          REMIC PROVISIONS.........................................................48

        Section 10.01      REMIC Administration.............................................48

        Section 10.02      Master Servicer; REMIC Administrator and Trustee
                          Indemnification..................................................48

        Section 10.03      Designation of REMIC(s)..........................................48

        Section 10.04      Distributions on the Uncertificated REMIC I Regular
                          Interests Z......................................................48

        Section 10.05      Compliance with Withholding Requirements.........................50

ARTICLE XI         MISCELLANEOUS PROVISIONS.................................................51

        Section 11.01      Amendment........................................................51

        Section 11.02      Recordation of Agreement, Counterparts...........................51

        Section 11.03      Limitation on Rights of Certificateholders.......................51

        Section 11.04      Governing Laws...................................................51

        Section 11.05      Notices..........................................................51

        Section 11.06      Required Notices to Rating Agency and Subservicer................52

        Section 11.07      Severability of Provisions.......................................52

        Section 11.08      Supplemental Provisions for Resecuritization.....................52

        Section 11.09      Allocation of Voting Rights......................................52

        Section 11.10      No Petition......................................................52

ARTICLE XII        COMPLIANCE WITH REGULATION AB (SEE ARTICLE XII OF THE STANDARD
                  TERMS)...................................................................53

EXHIBITS
Exhibit One:       Mortgage Loan Schedule (Available from the Company upon request.)
Exhibit Two:       Schedule of Discount Fractions (Available from the Company upon request.)
Exhibit Three:     Information to be Included in Monthly Distribution Date Statement
Exhibit Four:      Standard Terms of Pooling and Servicing Agreement dated as of September 1,2006
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        This is a Series Supplement,   dated as of September 1, 2006 (the "Series
Supplement"), to the Standard Terms of Pooling and Servicing Agreement, dated as
of September 1, 2006 and attached as Exhibit Four hereto (the   "Standard   Terms"
and, together with this Series Supplement, the "Pooling and Servicing Agreement"
or "Agreement"),   among RESIDENTIAL   FUNDING MORTGAGE SECURITIES I, INC., as the
company   (together with its permitted   successors and assigns,   the   "Company"),
RESIDENTIAL FUNDING CORPORATION, as master servicer (together with its permitted
successors   and   assigns,   the   "Master   Servicer"),    and   U.S.   BANK   NATIONAL
ASSOCIATION, as Trustee (together with its permitted successors and assigns, the
"Trustee").

                              PRELIMINARY STATEMENT

        The   Company    intends   to   sell   Mortgage    Pass-Through    Certificates
(collectively, the "Certificates"),   to be issued hereunder in multiple classes,
which in the aggregate will evidence the entire beneficial ownership interest in
the   Trust   Fund.   As   provided   herein,   the REMIC   Administrator   will make an
election   to   treat   the   entire   segregated   pool of   assets   described   in the
definition of Trust Fund, and subject to this Agreement   (including the Mortgage
Loans but excluding the Initial   Monthly   Payment   Fund,   the Yield   Maintenance
Agreement   and any   payments   thereunder   and the Reserve   Fund and any payments
therefrom),   as a real estate   mortgage   investment   conduit   (the   "REMIC") for
federal   income   tax   purposes   and   such   segregated   pool   of   assets   will be
designated as "REMIC I." The   Uncertificated   REMIC Regular I Interests   will be
"regular   interests" in REMIC I and the Class R-I Certificates   will be the sole
class of "residual   interests"   in REMIC I for purposes of the REMIC   Provisions
(as   defined    herein).    A   segregated    pool   of   assets    consisting   of   the
Uncertificated   REMIC I Regular   Interests will be designated as "REMIC II," and
the REMIC   Administrator   will   make a   separate   REMIC   election   with   respect
thereto.   The   Class   A-1   Certificates,    Class   A-2   Certificates,   Class   A-3
Certificates,    Class   A-4   Certificates,   Class   A-5   Certificates,   Class   A-6
Certificates,    Class   A-7   Certificates,   Class   A-8   Certificates,   Class   A-9
Certificates,   Class   A-10   Certificates,   Class A-11   Certificates,   Class A-12
Certificates,   Class   A-13   Certificates,   Class A-14   Certificates,   Class A-15
Certificates,   Class   A-16   Certificates,   Class   A-P   Certificates,   Class   M-1
Certificates,    Class   M-2   Certificates,   Class   M-3   Certificates,   Class   B-1
Certificates,    Class   B-2    Certificates,    Class   B-3    Certificates   and   the
Uncertificated REMIC II Regular Interests Z will be "regular interests" in REMIC
II. The Class R-II Certificates   will be the sole class of "residual   interests"
in REMIC II for   purposes of the REMIC   Provisions.   The Class A-V   Certificates
will represent the entire beneficial   ownership   interest in the   Uncertificated
REMIC II Regular Interests Z.

        The terms and provisions of the Standard   Terms are hereby   incorporated
by reference herein as though set forth in full herein. If any term or provision
contained   herein shall   conflict   with or be   inconsistent   with any   provision
contained   in the   Standard   Terms,   the terms   and   provisions   of this   Series
Supplement   shall govern.   Any   cross-reference   to a section of the Pooling and
Servicing   Agreement,   to the extent the terms of the Standard   Terms and Series
Supplement conflict with respect to that section,   shall be a cross-reference to
the   related   section   of the   Series   Supplement.   All   capitalized   terms   not
otherwise   defined   herein   shall have the   meanings   set forth in the   Standard
Terms. The Pooling and Servicing   Agreement shall be dated as of the date of the
Series Supplement.

        The following table sets forth the designation, type, Pass-Through Rate,
aggregate Initial Certificate Principal Balance,   Maturity Date, initial ratings
and certain features for each Class of Certificates   comprising the interests in
the Trust Fund created hereunder.

<TABLE>
<CAPTION>



                                Aggregate                                                                                           
                                Initial                                                                                            
                               Certificate                                                                                          
                Pass-Through     Principal                                            Maturity                          Minimum
  Designation        Rate          Balance        Features(1)                             Date      Moody's/S&P/Fitch    Denominations(2)
<S>         <C>      <C>        <C>                                                           <C>                         <C>        
   Class A-1         5.50%      $34,400,000.00           Senior/Fixed Rate           September 2036    Aaa/AAA/AAA          $100,000.00
   Class A-2      Variable     $25,000,000.00    Senior/ Floater/Adjustable Rate    September 2036    Aaa/AAA/AAA          $100,000.00
                  Rate(3)
                                                      Senior/Inverse                                                               
  Class A-3(3)     Variable                             Floater/Interest                                                               
                  Rate(3)      Notional(3)           Only/Adjustable Rate          September 2036    Aaa/AAA/AAA         $1,000,000.00
   Class A-4        6.00%     Notional(4)        Senior/Interest Only/Fixed Rate    September 2036    Aaa/AAA/AAA         $1,000,000.00
   Class A-5        6.00%                        Senior Support/Lockout/Fixed      September 2036    Aaa/AAA/AAA          $100,000.00
                             $2,600,000.00                  Rate
   Class A-6        6.00%      $37,400,000.00    Super Senior/Lockout/Fixed Rate    September 2036    Aaa/AAA/AAA          $100,000.00
   Class A-7        0.00%      $6,250,000.00          Senior/Principal Only         September 2036    Aaa/AAA/AAA          $100,000.00
   Class A-8        5.50%      $60,000,000.00           Senior/Fixed Rate           September 2036    Aaa/AAA/AAA          $100,000.00
   Class A-9        6.00%     Notional(5)        Senior/Interest Only/Fixed Rate    September 2036    Aaa/AAA/AAA         $1,000,000.00
  Class A-10        6.00%      $58,750,000.00           Senior/Fixed Rate           September 2036    Aaa/AAA/AAA          $100,000.00
  Class A-11      Variable                      Senior/Floater/Adjustable Rate     September 2036    Aaa/AAA/AAA          $100,000.00
                 Rate(6)      $53,340,000.00  
                                                      Senior/Inverse                                                               
  Class A-12      Variable                             Floater/Interest                                                               
                  Rate(6)      Notional(6)           Only/Adjustable Rate          September 2036    Aaa/AAA/AAA         $1,000,000.00
Class A-13(7)     Variable                      Senior/Floater/Adjustable Rate     September 2036    Aaa/AAA/AAA          $100,000.00
                   Rate       $50,080,000.00  
  Class A-14(7)    Variable                              Senior/Inverse             September 2036    Aaa/AAA/AAA          $100,000.00
                   Rate       $12,520,000.00        Floater/Adjustable Rate
  Class A-15        6.00%      $8,546,000.00            Senior/Fixed Rate           September 2036    Aaa/AAA/AAA          $100,000.00
  Class A-16        6.00%      $51,000,000.00           Senior/Fixed Rate           September 2036    Aaa/AAA/AAA          $100,000.00
   Class A-P        0.00%       $773,946.90           Senior/Principal Only         September 2036    Aaa/AAA/AAA          $100,000.00
   Class A-V      Variable        Notional        Senior/Interest Only/Variable     September 2036    Aaa/AAA/AAA         $2,000,000.00
                   Rate                                     Rate
   Class R-I        6.00%         $100.00          Senior/Residual/Fixed Rate       September 2036    Aaa/AAA/AAA       (8)       
  Class R-II        6.00%         $100.00           Senior/Residual/Fixed Rate       September 2036    Aaa/AAA/AAA              (8)
   Class M-1        6.00%      $8,949,900.00          Mezzanine/Fixed Rate          September 2036     NA/NA/AA            $100,000.00
   Class M-2        6.00%      $2,497,600.00           Mezzanine/Fixed Rate          September 2036      NA/NA/A            $250,000.00
   Class M-3        6.00%      $1,665,000.00          Mezzanine/Fixed Rate          September 2036     NA/NA/BBB           $250,000.00
   Class B-1        6.00%       $832,500.00          Subordinate/Fixed Rate         September 2036     NA/NA/BB            $250,000.00
   Class B-2        6.00%       $832,500.00          Subordinate/Fixed Rate         September 2036      NA/NA/B            $250,000.00
   Class B-3        6.00%       $832,796.62          Subordinate/Fixed Rate         September 2036     NA/NA/NA            $250,000.00



(1)   The Certificates,   other than the Class B and Class R Certificates shall be
     Book-Entry   Certificates.    The   Class   B   Certificates   and   the   Class   R
      Certificates shall be delivered to the holders thereof in physical form.


(2)   The Certificates, other than the Class R Certificates, shall be issuable in
     minimum dollar   denominations as indicated above (by Certificate   Principal
     Balance or Notional Amount, as applicable) and integral multiples of $1 (or
     $1,000 in the case of the Class B-1, Class B-2 and Class B-3   Certificates)
     in excess   thereof,   except that one   Certificate   of any of the Class B-1,
     Class B-2 and Class B-3   Certificates   that   contain an uneven   multiple of
     $1,000   shall be issued in a   denomination   equal to the sum of the related
     minimum   denomination   set forth   above and such uneven   multiple   for such
     Class or the sum of such denomination and an integral multiple of $1,000.

(3)
                 Initial                                                                                                           
  Adjustable      Pass-Throug     Formula                                                                                             
    Rates:          Rate      h                              Maximum                   Minimum                                   
     Class A-2            5.63%                  LIBOR + 0.30%                        7.50%                  0.30%
     Class A-3            1.87%                  7.20% - LIBOR                       7.20%                  0.00%


The Class A-3 Certificates do not have a certificate   principal balance. For the
purpose of calculating interest payments, interest on the Class A-3 Certificates
will accrue on a notional amount equal to the certificate   principal   balance of
the Class A-2 Certificates   immediately prior to the related   distribution date,
which is initially equal to $25,000,000.00.

(4)   The Class A-4 Certificates do not have a certificate principal balance. For
     the purpose of   calculating   interest   payments,   interest will accrue on a
     notional amount equal to 1/12th of the certificate principal balance of the
     Class   A-1   Certificates.   Initially,   this   notional   amount   is   equal to
     $2,866,666.67.   For federal income tax purposes, however, interest payments
     on the Class A-4   Certificates   are   expressed as 0.50%   multiplied   by the
     Notional Amount (as defined herein) of the Class A-4 Certificates.

(5)   The Class A-9 Certificates do not have a certificate principal balance. For
     the purpose of   calculating   interest   payments,   interest will accrue on a
     notional amount equal to 1/12th of the certificate principal balance of the
     Class   A-8   Certificates.   Initially,   this   notional   amount   is   equal to
     $5,000,000.00.   For federal income tax purposes, however, interest payments
     on the Class A-9   Certificates   are   expressed as 0.50%   multiplied   by the
     Notional Amount (as defined herein) of the Class A-8 Certificates.

(6)
Adjustable Rates:           Initial Pass-Through            Formula                  Maximum               Minimum
                                   Rate
Class A-11                         5.93%                 LIBOR + 0.60%            Subject to the            0.60%
                                                                            Available Funds Cap
Class A-12                         0.07%                 5.40% - LIBOR                5.40%                 0.00%

     The Class A-12   Certificates   do not have a   certificate   principal   balance.   For the purpose of   calculating
interest   payments,   interest   on the Class   A-12   Certificates   will   accrue   on a   notional   amount   equal to the
certificate   principal balance of the Class A-11 Certificates   immediately prior to the related   distribution date,
                                    which is initially equal to $53,340,000.00.
(7)
                 Initial                                                                                                   
Adjustable        Pass-Through     Formula                    Maximum                   Minimum                                
Rates:              Rate     
      Class A-13:                  5.68%                   LIBOR + 0.35%                 7.50%               0.35%
      Class A-14:                  7.28%                28.6% - (4 x LIBOR)              28.6%               0.00%

(8)   The Class R Certificates shall be issuable in minimum   denominations of not
     less than a 20% Percentage Interest;   provided,   however,   that one Class R
     Certificate will be issuable to Residential Funding as "tax matters person"
     pursuant to Section 10.01(c) and (e) in a minimum denomination representing
     a Percentage Interest of not less than 0.01%
</TABLE>


<PAGE>


        The Mortgage Loans have an aggregate principal balance as of the Cut-off
Date of $416,270,443.52.
        In consideration of the mutual agreements herein contained, the Company,
the Master Servicer and the Trustee agree as follows:


<PAGE>

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.

        Adjustable Rate Certificates: Any one of the Class A-2, Class A-3, Class
A-11, Class A-12, Class A-13 and Class A-14 Certificates.

        Available Funds Cap: With respect to any Distribution   Date on or before
the Distribution Date in September 2016 and the Class A-11   Certificates,   6.00%
per annum plus amounts, if any, paid pursuant to the Yield Maintenance Agreement
(which shall not be part of any REMIC   hereunder)   and on deposit in the Reserve
Fund (which shall not be part of any REMIC   hereunder)   up to an amount equal to
the Yield Supplement Amount for such Distribution Date, expressed as a per annum
rate. With respect to any   Distribution   Dates after   September 2016,   6.00% per
annum.

        Bankruptcy   Amount:   As of any date of determination   prior to the first
anniversary   of the Cut-off Date, an amount equal to the excess,   if any, of (A)
$122,815 over (B) the aggregate amount of Bankruptcy   Losses allocated solely to
one or more specific   Classes of Certificates in accordance with Section 4.05 of
this Series   Supplement.   As of any date of   determination on or after the first
anniversary of the Cut-off Date, an amount equal to the excess, if any, of

               (1) the lesser of (a) the Bankruptcy   Amount calculated as of the
        close of business on the Business   Day   immediately   preceding   the most
        recent anniversary of the Cut-off Date coinciding with or preceding such
        date   of   determination   (or,   if   such   date   of   determination   is   an
        anniversary of the Cut-off Date, the Business Day immediately   preceding
        such   date of   determination)   (for   purposes   of this   definition,   the
        "Relevant Anniversary") and (b) the greater of

                      (A)   the   greater   of   (i)   0.0006   times   the    aggregate
               principal   balance of all the Mortgage Loans in the Mortgage Pool
               as of the Relevant Anniversary (other than Additional   Collateral
               Loans, if any) having a Loan-to-Value   Ratio at origination which
               exceeds 75% and (ii) $122,815; and

                      (B) the greater of (i) the product of (x) an amount   equal
                to the largest   difference in the related Monthly Payment for any
               Non-Primary   Residence Loan remaining in the Mortgage Pool (other
               than Additional   Collateral   Loans, if any) which had an original
               Loan-to-Value   Ratio of 80% or greater   that would   result if the
               Net   Mortgage   Rate   thereof   was equal to the   weighted   average
               (based on the principal   balance of the Mortgage   Loans as of the
               Relevant   Anniversary)   of the Net Mortgage Rates of all Mortgage
               Loans as of the Relevant   Anniversary less 1.25% per annum, (y) a
               number equal to the weighted average   remaining term to maturity,
               in months,   of all   Non-Primary   Residence Loans remaining in the
               Mortgage   Pool as of the Relevant   Anniversary,   and (z) one plus
               the   quotient of the number of all   Non-Primary   Residence   Loans
               remaining   in the   Mortgage   Pool   divided by the total number of
               Outstanding   Mortgage   Loans   in   the   Mortgage   Pool   as of   the
               Relevant Anniversary, and (ii) $122,815,

               over

               (2) the aggregate amount of Bankruptcy Losses allocated solely to
        one or more specific   Classes of Certificates in accordance with Section
        4.05 since the Relevant Anniversary.

        The   Bankruptcy   Amount   may be further   reduced by the Master   Servicer
(including   accelerating the manner in which such coverage is reduced)   provided
that prior to any such   reduction,   the Master Servicer shall (i) obtain written
confirmation   from each Rating Agency that such   reduction   shall not reduce the
rating   assigned to any Class of   Certificates   by such Rating   Agency below the
lower of the then-current   rating or the rating assigned to such Certificates as
of the   Closing   Date by such   Rating   Agency   and (ii)   provide   a copy of such
written confirmation to the Trustee.

        Business   Day:   Any day other than (i) a Saturday   or a Sunday or (ii) a
day on which   banking   institutions   in the   State   of New   York,   the   State of
Michigan,   the State of   California,   the State of   Illinois   or the City of St.
Paul,   Minnesota (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: As to any Distribution   Date, the
amount of Advances or Servicing Advances that were added to the Stated Principal
Balance   of the   related   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),   plus the   Capitalization
Reimbursement    Shortfall    Amount    remaining    unreimbursed    from   any   prior
Distribution   Date and   reimbursed to the Master   Servicer or   Subservicer on or
prior to such Distribution   Date,   provided,   however,   that the   Capitalization
Reimbursement   Amount   shall at no time   exceed   five   percent of the   aggregate
Cut-Off   Date   Principal   Balance of the   Mortgage   Loans,   unless such limit is
increased from time to time with the consent of the Rating Agencies.

        Certificate:   Any Class A, Class M, Class B or Class R Certificate.

        Certificate   Account:   The   separate   account or   accounts   created   and
maintained   pursuant   to Section   4.01 of the   Standard   Terms,   which   shall be
entitled   "U.S.   Bank   National   Association,   as   trustee,   in   trust   for   the
registered holders of Residential   Funding Mortgage Securities I, Inc., Mortgage
Pass-Through   Certificates,   Series   2006-S8"   and   which   must   be an   Eligible
Account.

        Class A   Certificate:   Any one of the Class A-1,   Class A-2,   Class A-3,
Class A-4,   Class A-5,   Class A-6,   Class A-7, Class A-8, Class A-9, Class A-10,
Class A-11,   Class A-12,   Class A-13,   Class A-14, Class A-15, Class A-16, Class
A-P or Class A-V Certificates,   executed by the Trustee and authenticated by the
Certificate Registrar substantially in the form annexed to the Standard Terms as
Exhibit A.

      Class A-P Principal Distribution Amount: As defined in Section 4.02(b)(i).

        Class R Certificate: Any one of the Class R-I or Class R-II Certificates
executed   by   the   Trustee   and   authenticated   by   the   Certificate    Registrar
substantially   in the   form   annexed   to the   Standard   Terms as   Exhibit   D and
evidencing an interest   designated as a "residual interest" in the related REMIC
for purposes of the REMIC Provisions.

        Closing Date:   September 28, 2006.

        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
Agreement   is   located   at   U.S.   Bank   National   Association,    EP-MN-WS3D,   60
Livingston    Avenue,    St.   Paul,    Minnesota    55107,    Attention:    Structured
Finance/RFMSI 2006-S8.

        Cut-off Date:   September 1, 2006.

     Determination   Date:   With   respect to any   Distribution   Date,   the second
Business Day prior to such Distribution Date.

        Discount Net Mortgage Rate:   6.00% per annum.

        Due Period:   With   respect to each   Distribution   Date and any   Mortgage
Loan, the calendar month of such Distribution Date.

        Eligible Funds: On any   Distribution   Date, the portion,   if any, of the
Available   Distribution   Amount   remaining after reduction by the sum of (i) the
aggregate   amount of Accrued   Certificate   Interest on the Senior   Certificates,
(ii) the Senior   Principal   Distribution   Amount   (determined   without regard to
Section   4.02(a)(ii)(Y)(D)   of this   Series   Supplement),   (iii)   the   Class A-P
Principal    Distribution    Amount    (determined    without    regard   to    Section
4.02(b)(i)(E)   of this   Series   Supplement)   and (iv) the   aggregate   amount   of
Accrued   Certificate    Interest   on   the   Class   M,   Class   B-1   and   Class   B-2
Certificates.

        Floater   Certificates:    The   Class   A-2,   Class   A-11   and   Class   A-13
Certificates.

        Fraud Loss   Amount:   As of any date of   determination   after the Cut-off
Date,   an amount   equal to: (X) prior to the first   anniversary   of the   Cut-off
Date, an amount equal to 3.00% of the aggregate outstanding principal balance of
all of the Mortgage   Loans as of the Cut-off Date minus the aggregate   amount of
Fraud Losses allocated solely to one or more specific Classes of Certificates in
accordance with Section 4.05 of this Series Supplement since the Cut-off Date up
to such   date of   determination,   (Y)   prior to the   second   anniversary   of the
Cut-off Date, an amount equal to 2.00% of the   aggregate   outstanding   principal
balance of all of the Mortgage   Loans as of the Cut-off Date minus the aggregate
amount of Fraud   Losses   allocated   solely to one or more   specific   Classes   of
Certificates in accordance with Section 4.05 of this Series Supplement since the
Cut-off   Date up to such   date of   determination   and (Z) from the   third to the
fifth   anniversary of the Cut-off Date, an amount equal to (1) the lesser of (a)
the Fraud Loss Amount as of the most recent   anniversary of the Cut-off Date and
(b) 1.00% of the aggregate   outstanding principal balance of all of the Mortgage
Loans as of the most   recent   anniversary   of the   Cut-off   Date   minus   (2) the
aggregate   amount   of Fraud   Losses   allocated   solely   to one or more   specific
Classes   of   Certificates   in   accordance   with   Section   4.05   of   this   Series
Supplement since the most recent anniversary of the Cut-off Date up to such date
of   determination.   On and after the fifth   anniversary of the Cut-off Date, the
Fraud Loss Amount shall be zero.

        The Fraud   Loss   Amount may be   further   reduced by the Master   Servicer
(including   accelerating the manner in which such coverage is reduced)   provided
that prior to any such   reduction,   the Master Servicer shall (i) obtain written
confirmation   from each Rating Agency that such   reduction   shall not reduce the
rating   assigned to any Class of   Certificates   by such Rating   Agency below the
lower of the then-current   rating or the rating assigned to such Certificates as
of the   Closing   Date by such   Rating   Agency   and (ii)   provide   a copy of such
written confirmation to the Trustee.

        Initial Monthly Payment Fund: $331,764 representing   scheduled principal
amortization and interest at the Net Mortgage Rate during the month of September
2006,   for those   Mortgage   Loans for which the Trustee   will not be entitled to
receive such payment in accordance   with the   definition   of "Trust   Fund".   The
Initial Monthly Payment Fund will not be part of any REMIC.

        Initial Notional   Amount:   With respect to any Class A-V Certificates or
Subclass thereof issued pursuant to Section 5.01(c),   the aggregate Cut-off Date
Principal Balance of the Mortgage Loans relating to the   Uncertificated   REMIC I
Regular Interests Z, and   correspondingly,   the Uncertificated   REMIC II Regular
Interests Z, corresponding to such Class or Subclass on such date.

        Interest Accrual Period:   With respect to any   Certificates   (other than
the Adjustable Rate   Certificates) and any Distribution Date, the calendar month
preceding the month in which such Distribution Date occurs.   With respect to the
Adjustable Rate Certificates and any Distribution   Date, the period beginning on
the 25th day of the month   preceding the month in which such   Distribution   Date
occurs and ending on the 24th day of the month in which such   Distribution   Date
occurs.

        Interest Only   Certificates:   Any one of the Class A-V, Class A-3, Class
A-4, Class A-9 and Class A-12 Certificates.   The Interest Only Certificates will
have no Certificate Principal Balance.

        Inverse Floater   Certificates:   The Class A-3, Class A-12 and Class A-14
Certificates.

        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 1.03.

        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 Rate Adjustment Date: With respect to each   Distribution   Date and
the Adjustable   Rate   Certificates,   the second LIBOR   Business Day   immediately
preceding the commencement of the related Interest Accrual Period on which banks
are open for dealing in foreign currency and exchange in London, England.

        Lockout Amount:   With respect to any Distribution   Date, an amount equal
to the sum of the following:

        (a) the   product of (i) the   Lockout   Percentage   for that   Distribution
Date, (ii) the Lockout Priority   Percentage for such Distribution Date and (iii)
the aggregate   collections   described in clauses (A), (B) and (E), to the extent
clause   (E)   relates to clause (A) or (B),   of   Section   4.02(a)(ii)(Y)   without
applying   the   Senior   Percentage   and   the   Senior    Accelerated    Distribution
Percentage on such Distribution Date, plus

        (b) the   product of (i) the   Lockout   Percentage   for that   Distribution
Date, (ii) the Lockout Priority Percentage for such Distribution Date, and (iii)
the aggregate collections described in clauses (C) and (E), to the extent clause
(E) relates to clause (C), of Section 4.02(a)(ii)(Y) without applying the Senior
Accelerated Distribution Percentage on such Distribution Date.

        Lockout   Percentage:   With respect to any Distribution Date prior to the
Distribution   Date in October   2011,   0%, and with respect to such   Distribution
Date   and   any   Distribution   Date   thereafter,   a   fraction,    expressed   as   a
percentage,   (i) the numerator of which is the aggregate   Certificate   Principal
Balance of the Class A-5 and Class A-6   Certificates and (ii) the denominator of
which is the aggregate Stated Principal Balance of the Mortgage Loans other than
the Discount Fraction of each Discount Mortgage Loan.

        Lockout Priority   Percentage:   For any Distribution Date occurring prior
to the   Distribution   Date   in   October   2011,   0%.   For any   Distribution   Date
occurring   after the first five years   following   the Closing Date, a percentage
determined as follows: (i) for any Distribution Date during the sixth year after
the Closing Date,   30%; (ii) for any   Distribution   Date during the seventh year
after the Closing Date, 40%; (iii) for any   Distribution   Date during the eighth
year after the Closing   Date,   60%;   (iv) for any   Distribution   Date during the
ninth   year after the   Closing   Date,   80%;   and (v) for any   Distribution   Date
thereafter, 100%.

        Maturity   Date:   With   respect   to   each   Class   of   Certificates,    the
Distribution Date in September 2036, which is the Distribution Date in the month
immediately following the latest scheduled maturity date of any Mortgage Loan.

        Mortgage Loan Schedule: The list or lists of the Mortgage Loans attached
hereto as Exhibit One (as amended   from time to time to reflect the   addition of
Qualified   Substitute   Mortgage Loans),   which list or lists shall set forth the
following information as to each Mortgage Loan:

        (a)     the Mortgage Loan identifying number ("RFC LOAN #");
        (b)     the maturity of the Mortgage Note ("MATURITY DATE");
        (c)     the Mortgage Rate ("ORIG RATE");
        (d)     the Subservicer pass-through rate ("CURR NET");
        (e)     the Net Mortgage Rate ("NET MTG RT");
        (f)     the Pool Strip Rate ("STRIP");
        (g)     the initial   scheduled   monthly   payment of   principal,   if any,
               and   interest
               ("ORIGINAL P & I");
        (h)     the Cut-off Date Principal   Balance   ("PRINCIPAL   BAL");   (i) the
               Loan-to-Value Ratio at origination ("LTV");
        (j)     the rate at which the   Subservicing   Fee accrues   ("SUBSERV FEE")
               and at which the Servicing Fee accrues ("MSTR SERV FEE");
        (k)     a   code   "T,"   "BT"   or   "CT"   under   the   column   "LN   FEATURE,"
               indicating   that the   Mortgage   Loan is   secured   by a second   or
               vacation residence; and
        (l)     a code "N" under the   column   "OCCP   CODE,"   indicating   that the
               Mortgage Loan is secured by a non-owner occupied residence.

Such schedule may consist of multiple reports that collectively set forth all of
the information required.

        Non-Discount   Mortgage   Loan: The Mortgage Loans other than the Discount
Mortgage Loans.

        Notional Amount: As of any Distribution   Date, with respect to the Class
A-3   Certificates,   an amount equal to the Certificate   Principal Balance of the
Class A-2 Certificates   immediately prior to such date,   provided,   however, for
federal income tax purposes,   as of any   Distribution   Date, with respect to the
Class A-3   Certificates,   the   equivalent   of the   foregoing,   expressed   as the
Uncertificated   Principal Balance of   Uncertificated   REMIC I Regular Interest R
immediately prior to that date. As of any Distribution Date, with respect to the
Class A-4 Certificates,   an amount equal to 1/12th of the Certificate   Principal
Balance of the Class A-1 Certificates   immediately prior to such date, provided,
however,   for federal income tax purposes,   as of any   Distribution   Date,   with
respect   to the   Class   A-4   Certificates,   the   equivalent   of   the   foregoing,
expressed as the   Uncertificated   Principal   Balance of   Uncertificated   REMIC I
Regular Interest Q immediately prior to that date. As of any Distribution   Date,
with   respect to the Class A-9   Certificates,   an amount   equal to 1/12th of the
Certificate Principal Balance of the Class A-8 Certificates immediately prior to
such   date,   provided,   however,   for   federal   income tax   purposes,   as of any
Distribution Date, with respect to the Class A-9 Certificates, the equivalent of
the    foregoing,    expressed   as   the    Uncertificated    Principal    Balance   of
Uncertificated   REMIC I Regular Interest T immediately prior to that date. As of
any Distribution   Date, with respect to the Class A-12   Certificates,   an amount
equal to the   Certificate   Principal   Balance   of the   Class   A-11   Certificates
immediately   prior to such   date,   provided,   however,   for   federal   income tax
purposes,   as   of   any   Distribution   Date,   with   respect   to   the   Class   A-12
Certificates,   the equivalent of the foregoing,   expressed as the Uncertificated
Principal Balance of Uncertificated REMIC I Regular Interest U immediately prior
to that   date.   As of any   Distribution   Date   with   respect   to any   Class   A-V
Certificates,   an amount equal to the aggregate Stated Principal   Balance of the
Mortgage Loans as of the day immediately   preceding such   Distribution Date (or,
with respect to the initial   Distribution   Date, at the close of business on the
Cut-off Date).   For federal income tax purposes,   as of any   Distribution   Date,
with respect to any Class A-V   Certificates or Subclass   thereof issued pursuant
to Section 5.01(c), the aggregate Stated Principal Balance of the Mortgage Loans
corresponding   to   the    Uncertificated    REMIC   I   Regular    Interests   Z,   and
correspondingly,   the Uncertificated REMIC II Regular Interests Z, corresponding
to such Class or Subclass as of the day immediately   preceding such Distribution
Date   (or,   with   respect   to the   initial   Distribution   Date,   at the close of
business on the Cut-off Date).

        Pass-Through Rate: With respect to the Class A Certificates   (other than
the Class A-V   Certificates,   the Adjustable Rate Certificates and the Principal
Only   Certificates),   Class M   Certificates,   Class B   Certificates   and Class R
Certificates   and any   Distribution   Date,   the per annum rates set forth in the
Preliminary Statement hereto.

o               With   respect   to the   Class   A-2   Certificates   and the   initial
               Interest Accrual Period,   5.63% per annum, and as to any Interest
               Accrual Period   thereafter,   a per annum rate equal to LIBOR plus
               0.30%,   with a maximum rate of 7.50% per annum and a minimum rate
               of 0.30% per annum.

o               With   respect   to the   Class   A-3   Certificates   and the   initial
               Interest Accrual Period,   1.87% per annum, and as to any Interest
               Accrual Period thereafter,   a per annum rate equal to 7.20% minus
               LIBOR,   with a maximum rate of 7.20% per annum and a minimum rate
               of 0.00% per annum.

o               With   respect   to the Class   A-11   Certificates   and the   initial
               Interest Accrual Period,   5.93% per annum, and as to any Interest
               Accrual Period   thereafter,   a per annum rate equal to LIBOR plus
               0.60%, subject to a maximum rate equal to the Available Funds Cap
               and a minimum rate of 0.60% per annum.

o               With   respect   to the Class   A-12   Certificates   and the   initial
               Interest Accrual Period,   0.07% per annum, and as to any Interest
               Accrual Period thereafter,   a per annum rate equal to 5.40% minus
               LIBOR,   with a maximum rate of 5.40% per annum and a minimum rate
               of 0.00% per annum.

o               With   respect   to the Class   A-13   Certificates   and the   initial
               Interest Accrual Period,   5.68% per annum, and as to any Interest
               Accrual Period   thereafter,   a per annum rate equal to LIBOR plus
               0.35%,   with a maximum rate of 7.50% per annum and a minimum rate
               of 0.35% per annum.

o               With   respect   to the Class   A-14   Certificates   and the   initial
               Interest Accrual Period,   7.28% per annum, and as to any Interest
               Accrual Period thereafter,   a per annum rate equal to 28.6% minus
               the   product   of 4 and   LIBOR,   with a maximum   rate of 28.6% per
               annum and a minimum rate of 0.00% per annum.

With respect to the Class A-V Certificates (other than any Subclass thereof) and
any Distribution Date other than the initial   Distribution Date, a rate equal to
the weighted average,   expressed as a percentage, of the Pool Strip Rates of all
Mortgage   Loans as of the Due Date in the related   Due   Period,   weighted on the
basis of the respective   Stated Principal   Balances of such Mortgage Loans as of
the day immediately   preceding such Distribution Date. With respect to the Class
A-V Certificates   and the initial   Distribution   Date, the Pass-Through   Rate is
equal   to   0.2812%   per   annum.   With   respect   to any   Subclass   of   Class   A-V
Certificates   and any Distribution   Date, a rate equal to the weighted   average,
expressed   as a   percentage,   of the   Pool   Strip   Rates of all   Mortgage   Loans
corresponding   to   the    Uncertificated    Class   A-V   REMIC   Regular    Interests
represented   by such   Subclass   as of the Due Date in the   related   Due   Period,
weighted   on the   basis of the   respective   Stated   Principal   Balances   of such
Mortgage Loans as of the day immediately   preceding such   Distribution   Date (or
with respect to the initial   Distribution   Date, at the close of business on the
Cut-Off Date). The Principal Only Certificates have no Pass-Through Rate and are
not entitled to Accrued Certificate Interest.

         Pool Strip Rate:   With respect to each   Mortgage   Loan, a per annum rate
equal to the excess of (a) the Net Mortgage   Rate of such Mortgage Loan over (b)
the Discount Net Mortgage Rate (but not less than 0.00%) per annum.

        Prepayment Assumption: A prepayment assumption of 300% of the prepayment
speed   assumption,   used for   determining the accrual of original issue discount
and market   discount   and premium on the   Certificates   for   federal   income tax
purposes.   The prepayment speed assumption assumes a constant rate of prepayment
of Mortgage Loans of 0.2% per annum of the then outstanding principal balance of
such   Mortgage   Loans in the   first   month of the   life of the   Mortgage   Loans,
increasing by an additional   0.2% per annum in each   succeeding   month until the
thirtieth month,   and a constant 6% per annum rate of prepayment   thereafter for
the life of the Mortgage Loans.

        Prepayment   Distribution   Percentage:   With respect to any   Distribution
Date   and   each   Class   of   Subordinate    Certificates,    under   the   applicable
circumstances set forth below, the respective percentages set forth below:

        (i)     For any   Distribution   Date   prior   to the   Distribution   Date in
               October 2011 (unless the   Certificate   Principal   Balances of the
               Senior   Certificates (other than the Class A-P Certificates) have
               been reduced to zero), 0%.

        (ii)    For any   Distribution   Date for which   clause   (i) above does not
               apply,   and on which any   Class of   Subordinate   Certificates   is
               outstanding   with a Certificate   Principal   Balance   greater than
               zero:

                      (a) in the case of the Class of   Subordinate   Certificates
               then   outstanding   with the Highest Priority and each other Class
               of   Subordinate   Certificates   for which the   related   Prepayment
               Distribution Trigger has been satisfied, a fraction, expressed as
               a percentage, the numerator of which is the Certificate Principal
               Balance   of such   Class   immediately   prior to such   date and the
               denominator   of   which   is the sum of the   Certificate   Principal
               Balances   immediately   prior   to such   date of (1) the   Class   of
               Subordinate    Certificates   then   outstanding   with   the   Highest
               Priority and (2) all other   Classes of   Subordinate   Certificates
               for which the respective   Prepayment   Distribution   Triggers have
               been satisfied; and

                      (b) in   the   case   of   each   other   Class   of   Subordinate
               Certificates for which the Prepayment   Distribution Triggers have
               not been satisfied, 0%; and

        (iii)   Notwithstanding    the   foregoing,    if   the   application   of   the
               foregoing   percentages   on any   Distribution   Date as provided in
               Section 4.02 of this Series Supplement (determined without regard
               to   the   proviso   to the   definition   of   "Subordinate   Principal
               Distribution   Amount") would result in a distribution   in respect
               of principal of any Class or Classes of Subordinate   Certificates
                in an amount   greater than the   remaining   Certificate   Principal
               Balance thereof (any such class, a "Maturing   Class"),   then: (a)
               the   Prepayment   Distribution   Percentage of each Maturing   Class
               shall be   reduced to a level   that,   when   applied   as   described
               above, would exactly reduce the Certificate   Principal Balance of
               such Class to zero; (b) the Prepayment Distribution Percentage of
               each other Class of Subordinate   Certificates   (any such Class, a
               "Non-Maturing   Class") shall be   recalculated   in accordance with
               the   provisions in paragraph   (ii) above,   as if the   Certificate
               Principal Balance of each Maturing Class had been reduced to zero
               (such percentage as recalculated, the "Recalculated Percentage");
               (c)   the   total   amount   of   the   reductions   in   the   Prepayment
               Distribution    Percentages   of   the   Maturing   Class   or   Classes
               pursuant   to   clause   (a)   of   this   sentence,   expressed   as   an
               aggregate   percentage,   shall be allocated among the Non-Maturing
               Classes    in    proportion    to   their    respective    Recalculated
               Percentages (the portion of such aggregate reduction so allocated
               to any Non-Maturing Class, the "Adjustment Percentage");   and (d)
               for   purposes   of   such    Distribution    Date,    the    Prepayment
                Distribution Percentage of each Non-Maturing Class shall be equal
               to the sum of (1) the Prepayment Distribution Percentage thereof,
               calculated in accordance   with the   provisions in paragraph   (ii)
               above as if the   Certificate   Principal   Balance of each Maturing
               Class   had not   been   reduced   to   zero,   plus   (2)   the   related
               Adjustment Percentage.

        Principal   Only   Certificates:   Any one of the   Class   A-7 and Class A-P
Certificates.

        Record Date:   With respect to each   Distribution   Date and each Class of
Certificates   (other than the Adjustable   Rate   Certificates   for so long as the
Adjustable Rate   Certificates are in book-entry   form), the close of business on
the last Business Day of the month next preceding the month in which the related
Distribution   Date   occurs.   With   respect   to each   Distribution   Date   and the
Adjustable Rate Certificates (so long as they are Book-Entry Certificates),   the
close of business on the Business Day prior to such Distribution Date.

        Related   Classes:   As to any   Uncertificated   REMIC I Regular   Interest,
those classes of Certificates identified as "Related Classes of Certificates" to
such Uncertificated REMIC I Regular Interest in the definition of Uncertificated
REMIC I Regular Interest.

        REMIC I: The   segregated   pool of assets   with   respect to which a REMIC
election is to be made, consisting of:

               (i)   the   Mortgage   Loans   and the   related   Mortgage   Files   and
        collateral securing such Mortgage Loans,

               (ii) all   payments   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 and any   payments   received   under the Yield
        Maintenance Agreement and on deposit in the Reserve Fund) 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, if any, and

               (v) all proceeds of clauses (i) through (iv) above.

        REMIC I Certificates:   The Class R-I Certificates.

        REMIC II: The segregated pool of assets consisting of the Uncertificated
REMIC I Regular   Interests   conveyed   in trust to the Trustee for the benefit of
the   holders   of   each   Class   of    Certificates    (other   than   the   Class   R-I
Certificates)   pursuant to Section 2.06,   with respect to which a separate REMIC
election is to be made.

        Reserve Fund: The separate   account   created and maintained on behalf of
the Class A-11   Certificates   pursuant to Section 4.10,   which shall be entitled
"Reserve   Fund,   U.S. Bank National   Association,   as Trustee for the benefit of
holders   of   Residential    Funding    Mortgage    Securities   I,   Inc.,    Mortgage
Pass-Through Certificates, Series 2006-S8."

        Senior   Certificate:   Any one of the   Class A   Certificates   or   Class R
Certificates,   executed   by the   Trustee and   authenticated   by the   Certificate
Registrar   substantially   in the form annexed to the Standard Terms as Exhibit A
and Exhibit D, respectively.

        Senior Percentage: As of any Distribution Date, the lesser of 100% and a
fraction,   expressed as a   percentage,   the   numerator of which is the aggregate
Certificate   Principal Balance of the Senior   Certificates (other than the Class
A-P    Certificates)    immediately   prior   to   such   Distribution   Date   and   the
denominator   of which is the aggregate   Stated   Principal   Balance of all of the
Mortgage   Loans (or related   REO   Properties)   (other than the related   Discount
Fraction of each Discount   Mortgage Loan) immediately prior to such Distribution
Date.

        Senior Principal   Distribution   Amount: As to any Distribution Date, the
lesser of (a) the balance of the Available   Distribution   Amount remaining after
the distribution of all amounts   required to be distributed   pursuant to Section
4.02(a)(i)   and   Section   4.02(a)(ii)(X)   (excluding   any   amount   distributable
pursuant to Section 4.02(b)(i)(E)) (or, on or after the Credit Support Depletion
Date, the amount required to be distributed to the Class A-P   Certificateholders
pursuant   to Section   4.02(c))   and (b) the sum of the   amounts   required   to be
distributed to the Senior   Certificateholders on such Distribution Date pursuant
to Section 4.02(a)(ii)(Y).

        Special Hazard Amount:   As of any Distribution   Date, an amount equal to
$4,162,704   minus the sum of (i) the aggregate   amount of Special   Hazard Losses
allocated   solely to one or more specific   Classes of Certificates in accordance
with Section 4.05 of this Series   Supplement and (ii) the Adjustment   Amount (as
defined below) as most recently calculated.   For each anniversary of the Cut-off
Date, the Adjustment   Amount shall be equal to the amount,   if any, by which the
amount   calculated in accordance   with the preceding   sentence   (without   giving
effect to the deduction of the Adjustment Amount for such   anniversary)   exceeds
the greater of (A) the greatest of (i) twice the outstanding   principal   balance
of the   Mortgage   Loan in the   Trust   Fund   which   has the   largest   outstanding
principal    balance   on   the   Distribution    Date   immediately    preceding   such
anniversary,   (ii) the product of 1.00% multiplied by the outstanding   principal
balance of all Mortgage Loans on the   Distribution   Date   immediately   preceding
such anniversary and (iii) the aggregate   outstanding   principal   balance (as of
the immediately preceding Distribution Date) of the Mortgage Loans in any single
five-digit California zip code area with the largest amount of Mortgage Loans by
aggregate   principal   balance as of such   anniversary and (B) the greater of (i)
the product of 0.50%   multiplied   by the   outstanding   principal   balance of all
Mortgage Loans on the Distribution   Date immediately   preceding such anniversary
multiplied   by a   fraction,   the   numerator   of which is equal to the   aggregate
outstanding   principal   balance (as of the   immediately   preceding   Distribution
Date) of all of the Mortgage   Loans secured by Mortgaged   Properties   located in
the State of California divided by the aggregate   outstanding   principal balance
(as of the   immediately   preceding   Distribution   Date)   of all of the   Mortgage
Loans, expressed as a percentage, and the denominator of which is equal to 35.0%
(which percentage is equal to the percentage of Mortgage Loans initially secured
by   Mortgaged   Properties   located   in the   State   of   California)   and (ii) the
aggregate   outstanding   principal   balance   (as   of   the   immediately   preceding
Distribution   Date) of the largest Mortgage Loan secured by a Mortgaged Property
located in the State of California.

        The Special Hazard Amount may be further   reduced by the Master Servicer
(including   accelerating the manner in which coverage is reduced)   provided that
prior to any such   reduction,   the   Master   Servicer   shall (i)   obtain   written
confirmation   from each Rating Agency that such   reduction   shall not reduce the
rating   assigned to any Class of   Certificates   by such Rating   Agency below the
lower of the then-current   rating or the rating assigned to such Certificates as
of the   Closing   Date by such   Rating   Agency   and (ii)   provide   a copy of such
written confirmation to the Trustee.

        Subordinate    Principal    Distribution    Amount:   With   respect   to   any
Distribution Date and each Class of Subordinate Certificates, (a) the sum of (i)
the product of (x) the related   Subordinate   Class Percentage for such Class and
(y) the aggregate of the amounts   calculated   for such   Distribution   Date under
clauses (1), (2) and (3) of Section   4.02(a)(ii)(Y)(A) of this Series Supplement
(without   giving effect to the Senior   Percentage)   to the extent not payable to
the   Senior   Certificates;   (ii)   such   Class's   pro   rata   share,   based on the
Certificate   Principal   Balance of each Class of Subordinate   Certificates   then
outstanding,     of    the     principal     collections     described    in    Section
4.02(a)(ii)(Y)(B)(b)   of this Series   Supplement   (without   giving effect to the
Senior Accelerated   Distribution   Percentage) to the extent such collections are
not otherwise   distributed to the Senior Certificates;   (iii) the product of (x)
the related   Prepayment   Distribution   Percentage   and (y) the   aggregate of all
Principal   Prepayments   in Full   received in the related   Prepayment   Period and
Curtailments   received in the preceding   calendar   month (other than the related
Discount   Fraction of such Principal   Prepayments in Full and Curtailments   with
respect to a   Discount   Mortgage   Loan) to the extent not   payable to the Senior
Certificates;   (iv) if such Class is the Class of Subordinate   Certificates with
the   Highest   Priority,    any   Excess   Subordinate   Principal   Amount   for   such
Distribution   Date; and (v) any amounts described in clauses (i), (ii) and (iii)
as determined for any previous   Distribution Date, that remain   undistributed to
the extent that such amounts are not   attributable to Realized Losses which have
been allocated to a Class of Subordinate   Certificates   minus (b) the sum of (i)
with respect to the Class of Subordinate   Certificates with the Lowest Priority,
any Excess Subordinate Principal Amount for such Distribution Date; and (ii) the
Capitalization   Reimbursement   Amount for such Distribution Date, other than the
related Discount Fraction of any portion of that amount related to each Discount
Mortgage   Loan,   multiplied   by a   fraction,   the   numerator   of   which   is   the
Subordinate   Principal    Distribution   Amount   for   such   Class   of   Subordinate
Certificates,   without giving effect to this clause (b)(ii), and the denominator
of which is the sum of the   principal   distribution   amounts   for all Classes of
Certificates other than the Class A-P Certificates, without giving effect to any
reductions for the Capitalization Reimbursement Amount.

        Trust Fund:   The segregated pool of assets consisting of:

        (i)     the Mortgage Loans and the related   Mortgage Files and collateral
               securing such Mortgage Loans,

        (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,   any payments   received   under the
               Yield Maintenance Agreement and amounts on deposit in the Reserve
               Fund) as shall be on deposit in the   Custodial   Account or in the
               Certificate Account and identified as belonging to the Trust Fund
               but not   including   amounts   on deposit   in the   Initial   Monthly
               Payment Fund,

        (iii)   property   that secured a Mortgage Loan and that 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,   if
               any,

        (v)     the Initial Monthly Payment Fund,

        (vi)    with    respect   to   the   Class   A-11    Certificates,    the   Yield
               Maintenance Agreement; and

        (vii)   all proceeds of clauses (i) through (vi) above.

        Uncertificated Accrued Interest: With respect to each Distribution Date,
(i)   as to   each   Uncertificated   REMIC   I   Regular   Interest   other   than   each
Uncertificated   REMIC I Regular   Interest   Z, an amount   equal to the   aggregate
amount of Accrued Certificate   Interest that would result under the terms of the
definition   thereof   on the   Related   Classes   of   Certificates   (excluding   any
Interest Only   Certificates) if the Pass-Through Rate on such Classes were equal
to the Uncertificated   Pass-Through Rate on such Uncertificated   REMIC I Regular
Interest and (ii) as to each Uncertificated   REMIC I Regular Interest Z and each
Uncertificated   REMIC II Regular Interest Z, an amount equal to their respective
Uncertificated   Pass-Through Rates reduced by such Certificate's   pro-rata share
of any prepayment   interest shortfalls or other reductions of interest allocable
to the Class A-V Certificates, pursuant to Section 4.02.

        Uncertificated    Pass-Through    Rate:    With   respect   to   each   of   the
Uncertificated   REMIC I Regular Interest,   other than the Uncertificated REMIC I
Regular   Interests   Z,   the   per   annum   rate   specified   in the   definition   of
Uncertificated   REMIC I Regular Interests.   With respect to each   Uncertificated
REMIC I Regular   Interest Z, the Pool Strip Rate for the related   Mortgage Loan,
and with respect to each Uncertificated REMIC II Regular Interest Z, 100% of the
Uncertificated    Pass-Through    Rate   on   the    related    identically    numbered
Uncertificated REMIC I Regular Interest Z.

        Uncertificated   Principal Balance:   With respect to each   Uncertificated
REMIC I   Regular   Interest,   other   than   the   Uncertificated   REMIC   I   Regular
Interests   Z, as defined in the   definition   of   Uncertificated   REMIC I Regular
Interest.

        Uncertificated   REMIC I Regular Interests:   The   Uncertificated   REMIC I
Regular   Interests Z together with the interests   identified in the table below,
each   representing an undivided   beneficial   ownership   interest in REMIC I, and
having the following characteristics:

                1. The principal balance from time to time of each Uncertificated
        REMIC I Regular   Interest   identified   in the table   below   shall be the
        amount   identified   as the   Initial   Principal   Balance   thereof in such
        table,   minus the sum of (x) the   aggregate   of all   amounts   previously
        deemed   distributed   with respect to such interest and applied to reduce
        the   Uncertificated    Principal   Balance   thereof   pursuant   to   Section
        10.04(a)(ii)   and (y) the   aggregate of all   reductions   in   Certificate
        Principal   Balance   deemed to have occurred in connection   with Realized
        Losses   that were   previously   deemed   allocated   to the   Uncertificated
        Principal   Balance   of   such   Uncertificated   REMIC I   Regular   Interest
        pursuant   to Section   10.04(d),   which   equals the   aggregate   principal
        balance of the   Classes of   Certificates   identified   as related to such
        Uncertificated REMIC I Regular Interest in such table.

               2. The Uncertificated   Pass-Through Rate for each   Uncertificated
        REMIC I Regular Interest   identified in the table below shall be the per
        annum rate set forth in the Pass-Through Rate column of such table.

                3. The Uncertificated   REMIC I Distribution Amount for each REMIC
        I Regular   Interest   identified   in the table   below   shall be,   for any
        Distribution   Date, the amount deemed   distributed   with respect to such
        Uncertificated   REMIC   I   Regular   Interest   on such   Distribution   Date
        pursuant to the provisions of Section 10.04(a).
<TABLE>
<CAPTION>

------------------------- ------------------------- --------------------- -----------------------
  UNCERTIFICATED REMIC I        RELATED CLASSES OF                              INITIAL PRINCIPAL
    REGULAR INTEREST             CERTIFICATES          PASS-THROUGH RATE            BALANCE
------------------------- ------------------------- --------------------- -----------------------
------------------------- ------------------------- --------------------- -----------------------
<S>                                <C>         <C>            <C>                  <C>        
           Q               Class A-1, Class A-4              6.00%                 $34,400,000
------------------------- ------------------------- --------------------- -----------------------
------------------------- ------------------------- --------------------- -----------------------
           R               Class A-2, Class A-3              7.50%                $25,000,000
------------------------- ------------------------- --------------------- -----------------------
------------------------- ------------------------- --------------------- -----------------------
            S               Class A-7                         0.00%                 $6,250,000
------------------------- ------------------------- --------------------- -----------------------
------------------------- ------------------------- --------------------- -----------------------
           T               Class A-8, Class A-9              6.00%                $60,000,000
------------------------- ------------------------- --------------------- -----------------------
------------------------- ------------------------- --------------------- -----------------------
           U               Class A-11, Class A-12            6.00%                $53,340,000
------------------------- ------------------------- --------------------- -----------------------
------------------------- ------------------------- --------------------- -----------------------
           V               Class A-13, Class A-14            6.00%                $62,600,000
------------------------- ------------------------- --------------------- -----------------------
------------------------- ------------------------- --------------------- -----------------------
           W               Class A-P                         0.00%                   $773,947
------------------------- ------------------------- --------------------- -----------------------
------------------------- ------------------------- --------------------- -----------------------
           Y               Class A-5, Class A-6,             6.00%               $173,906,397
                           Class A-10, Class A-15,
                          Class A-16, Class R-II,
                          Class M-1, Class M-2,
                          Class M-3, Class B-1,
                          Class B-2, Class B-3
------------------------- ------------------------- --------------------- -----------------------

</TABLE>

        Uncertificated   REMIC I   Regular   Interests   Z:   The 788   uncertificated
partial undivided   beneficial   ownership   interests in the Trust Fund,   numbered
sequentially   from   1 to   788,   each   relating   to the   particular   Non-Discount
Mortgage Loan   identified by   sequential   number on the Mortgage Loan   Schedule,
each having no principal   balance,   and each bearing   interest at the respective
Pool Strip Rate on the Stated Principal Balance of the related Mortgage Loan.

        Uncertificated   REMIC I Regular   Interests Z Distribution   Amount:   With
respect   to   any   Distribution   Date,   the   sum   of   the   amounts   deemed   to be
distributed   on   the   Uncertificated   REMIC   I   Regular   Interests   Z   for   such
Distribution Date pursuant to Section 10.04(a).

        Uncertificated   REMIC I   Regular   Interest   Distribution   Amounts:   With
respect   to each   Uncertificated   REMIC   I   Regular   Interest,   other   than   the
Uncertificated   REMIC   I   Regular   Interests   Z,   the   amount   specified   as the
Uncertificated REMIC I Regular Interest Distribution Amount with respect thereto
in the definition of Uncertificated   REMIC I Regular Interests.   With respect to
the   Uncertificated   REMIC I Regular   Interests   Z, the   Uncertificated   REMIC I
Regular Interests Z Distribution Amount.

        Uncertificated    REMIC   II   Regular    Interests    Z:   Each   of   the   788
uncertificated   partial   undivided   beneficial   ownership   interests in REMIC II
relating to a particular   Uncertificated REMIC I Regular Interest Z, each having
no   principal   balance   and   bearing   interest   at a rate   equal   to 100% of the
Uncertificated   Pass-Through Rate on the related   Uncertificated REMIC I Regular
Interest Z, comprising   such   Uncertificated   REMIC II Regular   Interest Z's pro
rata share of the amount distributed pursuant to Section 10.04(a).

        Uncertificated   REMIC II Regular   Interests   Distribution   Amount:   With
respect   to   any   Distribution   Date,   the   sum   of   the   amounts   deemed   to be
distributed   on   the   Uncertificated   REMIC   II   Regular   Interests   Z for   such
Distribution Date pursuant to Section 10.04(a).

        Yield Maintenance Agreement:   The confirmation,   dated as of the Closing
Date, between the Trustee and the Yield Maintenance Agreement Provider, relating
to the Class A-11 Certificates,   or any replacement,   substitute,   collateral or
other arrangement in lieu thereof or related thereto.

        Yield Maintenance Agreement Provider: BNP Paribas and its successors and
assigns   or any   party   to any   replacement,   substitute,   collateral   or   other
arrangement in lieu thereof.

        Yield Maintenance Agreement Termination Payment: Upon the designation of
an   "Early   Termination   Date"   as   defined   in the   related   Yield   Maintenance
Agreement, the payment to be made by the Yield Maintenance Agreement Provider to
the   Trustee   for   payment to the Trust Fund   pursuant to the terms of the Yield
Maintenance Agreement.

         Yield Maintenance   Payment:   For any Distribution Date, the payment,   if
any,   to be paid   under the   Yield   Maintenance   Agreement   in   respect   of such
Distribution   Date.   With   respect to any   Distribution   Date and the Class A-11
Certificates,   the Yield   Maintenance   Payment   shall be the amount equal to the
product of (I) the positive   excess,   if any, of (a) the lesser of (x) LIBOR and
(y) 8.90% per annum, over (b) 5.40% per annum, and (II) the amount set forth for
that   Distribution Date in Schedule I of the Yield   Maintenance   Agreement,   and
(III) a fraction,   the numerator of which is 30 and the   denominator of which is
360.

        Yield Supplement   Amount:   With respect to any Distribution Date and the
Class A-11   Certificates,   an amount   equal to the   product of (I) the   positive
excess, if any, of (a) the lesser of (x) LIBOR and (y) 8.90% per annum, over (b)
5.40% per annum,   and (II) the Certificate   Principal   Balance of the Class A-11
Certificates   immediately   prior to the related   Distribution   Date, and (III) a
fraction, the numerator of which is 30 and denominator of which is 360.

Section 1.02    Use of Words and Phrases.

        "Herein," "hereby," "hereunder," "hereof," "hereinbefore," "hereinafter"
and other   equivalent   words refer to the Pooling and   Servicing   Agreement as a
whole. All references herein to Articles, Sections or Subsections shall mean the
corresponding   Articles,   Sections and   Subsections in the Pooling and Servicing
Agreement.   The   definitions   set forth herein include both the singular and the
plural.

        References in the Pooling and   Servicing   Agreement to "interest" on and
"principal"   of the   Mortgage   Loans   shall   mean,   with   respect   to the Sharia
Mortgage Loans,   amounts in respect profit   payments and   acquisition   payments,
respectively.

Section 1.03    Determination of LIBOR.

        LIBOR   applicable to the   calculation of the   Pass-Through   Rates on the
Adjustable   Rate   Certificates   for any Interest   Accrual Period (other than the
initial Interest Accrual Period) will be determined as described below:

        With respect to each   Distribution   Date,   LIBOR shall be established by
the Trustee and, as to any Interest Accrual Period,   will equal the rate for one
month United   States dollar   deposits   that appears on the Telerate   Screen Page
3750 of the Moneyline   Telerate Capital Markets Report as of 11:00 a.m.,   London
time,   on the second LIBOR   Business Day prior to the first day of such Interest
Accrual Period ("LIBOR Rate Adjustment Date"). "Telerate Screen Page 3750" means
the display   designated as page 3750 on the Telerate Service (or such other page
as may replace   page 3750 on that service for the purpose of   displaying   London
interbank   offered rates of major   banks).   If such rate does not appear on such
page (or such other page as may replace   that page on that   service,   or if such
service   is no   longer   offered,   any   other   service   for   displaying   LIBOR or
comparable rates as may be selected by the Trustee after   consultation   with the
Master Servicer),   the rate will be the Reference Bank Rate. The "Reference Bank
Rate" will be   determined   on the basis of the rates at which   deposits   in U.S.
Dollars are offered by the reference banks (which shall be any three major banks
that are engaged in transactions in the London interbank market, selected by the
Trustee after   consultation   with the Master Servicer) as of 11:00 a.m.,   London
time,   on the day   that is one   LIBOR   Business   Day   prior   to the   immediately
preceding   Distribution Date to prime banks in the London interbank market for a
period of one month in amounts   approximately equal to the aggregate Certificate
Principal   Balance of the Adjustable Rate   Certificates   then   outstanding.   The
Trustee will request the principal   London office of each of the reference banks
to   provide   a   quotation   of its   rate.   If at least   two such   quotations   are
provided,   the rate will be the arithmetic mean of the quotations   rounded up to
the next   multiple   of 1/16%.   If on such date   fewer   than two   quotations   are
provided as requested,   the rate will be the arithmetic mean of the rates quoted
by one or more   major   banks in New York City,   selected   by the   Trustee   after
consultation with the Master Servicer,   as of 11:00 a.m., New York City time, on
such date for loans in U.S.   Dollars to leading   European   banks for a period of
one month in amounts   approximately equal to the aggregate Certificate Principal
Balance   of the   Adjustable   Rate   Certificates   then   outstanding.   If no   such
quotations   can be obtained,   the rate will be LIBOR for the prior   Distribution
Date, or, in the case of the first LIBOR Rate Adjustment   Date, 5.33% per annum;
provided,   however,   if,   under   the   priorities   described   above,   LIBOR for a
Distribution Date would be based on LIBOR for the previous Distribution Date for
the third consecutive   Distribution   Date, the Trustee shall, after consultation
with the Master Servicer, select an alternative comparable index (over which the
Trustee has no control), used for determining one-month Eurodollar lending rates
that is calculated and published (or otherwise made available) by an independent
party.   "LIBOR Business Day" means any day other than (i) a Saturday or a Sunday
or (ii) a day on which banking   institutions in the city of London,   England are
required or authorized by law to be closed.

        The   establishment   of LIBOR by the Trustee on any LIBOR Rate Adjustment
Date and the Master Servicer's subsequent   calculation of the Pass-Through Rates
applicable to each of the Adjustable Rate Certificates for the relevant Interest
Accrual Period, in the absence of manifest error, will be final and binding.

        Promptly   following   each LIBOR Rate   Adjustment   Date the Trustee shall
supply the Master   Servicer   with the results of its   determination   of LIBOR on
such date.   Furthermore,   the Trustee will supply the Pass-Through Rates on each
of the   Adjustable   Rate   Certificates   for   the   current   and   the   immediately
preceding   Interest Accrual Period via the Trustee's internet website located at
http://www.usbank.com/mbs or which may be obtained by telephoning the Trustee at
(800) 934-6802.

<PAGE>


ARTICLE II


                    ARTICLE II CONVEYANCE OF MORTGAGE LOANS;

                         ORIGINAL ISSUANCE OF CERTIFICATES

Section 2.01    Conveyance of Mortgage Loans.

(a) (See Section 2.01(a) of the Standard Terms)

(b) (See Section 2.01(b) of the Standard Terms)

(c) (See Section 2.01(c) of the Standard Terms)

(d) (See Section 2.01(d) of the Standard Terms)

(e) (See Section 2.01(e) of the Standard Terms)

(f) (See Section 2.01(f) of the Standard Terms)

(g) (See Section 2.01(g) of the Standard Terms)

(h) (See Section 2.01(h) of the Standard Terms)

(i) In connection with such assignment,   and contemporaneously with the delivery
of this Agreement,   the Company delivered or caused to be delivered hereunder to
the   Trustee   the Yield   Maintenance   Agreement   (the   delivery   of which   shall
evidence   that the fixed payment for such Yield   Maintenance   Agreement has been
paid and the Trustee and the Trust Fund shall have no further payment obligation
thereunder).

Section 2.02    Acceptance by Trustee.   (See Section 2.02 of the Standard Terms)

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

(a)      For   representations,   warranties and covenants of the Master   Servicer,
        see Section 2.03(a) of the Standard Terms.

(b)      The   Company   hereby   represents   and   warrants   to the   Trustee for the
        benefit   of   Certificateholders   that as of the   Closing   Date   (or,   if
        otherwise specified below, as of the date so specified):

(i)      No Mortgage   Loan is 30 or more days   Delinquent in payment of principal
        and   interest   as of the Cut-off   Date and no Mortgage   Loan has been so
        Delinquent   more than once in the   12-month   period prior to the Cut-off
        Date;

(ii)     The   information   set forth in Exhibit One hereto   with   respect to each
         Mortgage   Loan or the   Mortgage   Loans,   as the case may be, is true and
        correct in all material   respects at the date or dates   respecting which
        such information is furnished;

(iii)    The   Mortgage   Loans are   fully-amortizing   (subject   to   interest   only
        periods,   if applicable),   fixed-rate   mortgage loans with level Monthly
        Payments due, with respect to a majority of the Mortgage   Loans,   on the
        first   day of each   month   and   terms   to   maturity   at   origination   or
        modification of not more than 30 years;

(iv)     To the best of the Company's knowledge, if a Mortgage Loan is secured by
        a Mortgaged Property with a Loan-to-Value Ratio at origination in excess
        of 80%, such Mortgage Loan is the subject of a Primary   Insurance Policy
        that   insures that (a) at least 30% of the Stated   Principal   Balance of
        the Mortgage Loan at origination if the   Loan-to-Value   Ratio is between
        95.00% and 90.01%, (b) at least 25% of such balance if the Loan-to-Value
        Ratio is between 90.00% and 85.01%, and (c) at least 12% of such balance
        if the Loan-to-Value   Ratio is between 85.00% and 80.01%. To the best of
        the Company's   knowledge,   each such Primary Insurance Policy is in full
        force and effect and the Trustee is entitled to the benefits thereunder;

(v)      The issuers of the Primary   Insurance   Policies are insurance   companies
        whose   claims-paying   abilities are currently   acceptable to each Rating
        Agency;

(vi)     No more   than   0.9% of the   Mortgage   Loans by   aggregate   Cut-off   Date
        Principal Balance are secured by Mortgaged Properties located in any one
        zip code   area in the   State of   Virginia   and no more   than 0.7% of the
        Mortgage Loans by aggregate   Cut-off Date Principal   Balance are secured
        by   Mortgaged   Properties   located in any one zip code area   outside the
        State of Virginia;

(vii)    The improvements upon the Mortgaged   Properties are insured against loss
        by fire and other   hazards as required by the Program   Guide,   including
        flood   insurance if required under the National   Flood   Insurance Act of
        1968, as amended.   The Mortgage   requires the Mortgagor to maintain such
        casualty   insurance at the Mortgagor's   expense,   and on the Mortgagor's
        failure to do so,   authorizes   the holder of the   Mortgage to obtain and
        maintain   such   insurance   at   the   Mortgagor's    expense   and   to   seek
         reimbursement therefor from the Mortgagor;

(viii)   Immediately   prior   to the   assignment   of   the   Mortgage   Loans   to the
        Trustee,   the Company had good title to, and was the sole owner of, each
        Mortgage   Loan   free   and   clear of any   pledge,   lien,   encumbrance   or
        security    interest    (other   than   rights   to   servicing    and   related
        compensation)   and such assignment   validly   transfers   ownership of the
        Mortgage   Loans to the   Trustee   free and   clear   of any   pledge,   lien,
        encumbrance or security interest;

(ix)     No more than 30.18% of the   Mortgage   Loans by   aggregate   Cut-off   Date
        Principal Balance were underwritten   under a reduced loan   documentation
        program;

(x)      Each Mortgagor   represented in its loan   application with respect to the
        related    Mortgage    Loan    that   the    Mortgaged    Property    would   be
        owner-occupied and therefore would not be an investor property as of the
        date of origination of such Mortgage Loan. No Mortgagor is a corporation
        or a partnership;

(xi)     None of the Mortgage Loans are Buydown Mortgage Loans;

(xii)    Each   Mortgage   Loan   constitutes   a qualified   mortgage   under   Section
        860G(a)(3)(A)    of    the    Code    and    Treasury    Regulations    Section
        1.860G-2(a)(1);

(xiii)   A policy of title   insurance   was   effective   as of the   closing of each
        Mortgage   Loan and is valid and   binding   and   remains in full force and
        effect, unless the Mortgaged Properties are located in the State of Iowa
        and an   attorney's   certificate   has been   provided as   described in the
        Program Guide;

(xiv)    Except with respect to 0.3% of the Mortgage Loans,   none of the Mortgage
         Loans are Cooperative Loans;

(xv)     Except with respect to 0.7% of the Mortgage Loans,   none of the Mortgage
        Loans   were   originated   under a   "streamlined"   Mortgage   Loan   program
        (through which no new or updated appraisals of Mortgaged   Properties are
        obtained in connection with the refinancing thereof), the related Seller
        has   represented   that   either   (a) the value of the   related   Mortgaged
        Property as of the date the Mortgage   Loan was   originated   was not less
        than the appraised   value of such property at the time of origination of
        the   refinanced   Mortgage   Loan or (b) the   Loan-to-Value   Ratio   of the
        Mortgage   Loan   as of the   date   of   origination   of the   Mortgage   Loan
         generally meets the Company's underwriting guidelines;

(xvi)    Interest on each   Mortgage   Loan is calculated on the basis of a 360-day
        year consisting of twelve 30-day months;

(xvii)   None of the   Mortgage   Loans   contains   in the related   Mortgage   File a
        Destroyed Mortgage Note; and

(xviii) None of the   Mortgage   Loans   are   Pledged   Asset   Loans   or   Additional
        Collateral Loans.

It is understood and agreed that the representations and warranties set forth in
this Section 2.03(b) shall survive delivery of the respective Custodial Files to
the Trustee or the Custodian.

        Upon discovery by any of the Company, the Master Servicer,   the Trustee,
or the Custodian of a breach of any of the   representations   and   warranties set
forth   in this   Section   2.03(b)   that   materially   and   adversely   affects   the
interests of the   Certificateholders in any Mortgage Loan, the party discovering
such breach shall give prompt written notice to the other parties (any Custodian
being so obligated under a Custodial Agreement);   provided, however, that in the
event of a breach   of the   representation   and   warranty   set   forth in   Section
2.03(b)(xii),   the party   discovering   such breach shall give such notice within
five days of discovery. Within 90 days of its discovery or its receipt of notice
of   breach,   the   Company   shall   either   (i) cure such   breach in all   material
respects or (ii) purchase such Mortgage Loan from the Trust Fund at the Purchase
Price and in the manner set forth in Section   2.02;   provided   that the   Company
shall have the option to   substitute   a Qualified   Substitute   Mortgage   Loan or
Loans   for such   Mortgage   Loan if such   substitution   occurs   within   two years
following the Closing Date;   provided that if the omission or defect would cause
the Mortgage Loan to be other than a "qualified   mortgage" as defined in Section
860G(a)(3) of the Code,   any such cure or   repurchase   must occur within 90 days
from the date   such   breach   was   discovered.   Any   such   substitution   shall be
effected   by the   Company   under the same terms and   conditions   as   provided in
Section 2.04 for   substitutions   by   Residential   Funding.   It is understood and
agreed that the   obligation of the Company to cure such breach or to so purchase
or   substitute   for any Mortgage Loan as to which such a breach has occurred and
is continuing shall constitute the sole remedy   respecting such breach available
to the   Certificateholders   or the Trustee on behalf of the   Certificateholders.
Notwithstanding   the   foregoing,   the   Company   shall   not be   required   to cure
breaches   or   purchase   or   substitute   for   Mortgage   Loans as provided in this
Section   2.03(b) if the   substance of the breach of a   representation   set forth
above also constitutes fraud in the origination of the Mortgage Loan.

Section 2.04 Representations and Warranties of Residential Funding. (See Section
        2.04 of the Standard Terms)

Section 2.05    Execution and Authentication of Class R-I Certificates.

        The Trustee   acknowledges the assignment to it of the Mortgage Loans and
the   delivery   of the   Custodial   Files to it, or any   Custodian   on its behalf,
subject to any exceptions noted, together with the assignment to it of all other
assets   included   in the Trust   Fund,   receipt of which is hereby   acknowledged.
Concurrently with such delivery and in exchange therefor, the Trustee,   pursuant
to the written request of the Company   executed by an officer of the Company has
executed and caused to be   authenticated   and   delivered to or upon the order of
the   Company   the Class   R-I   Certificates   in   authorized   denominations   which
together   with   the   Uncertificated   REMIC I   Regular   Interests,   evidence   the
beneficial interest in REMIC I.

Section                 2.06   Conveyance   of   Uncertificated   REMIC I and REMIC II
                      Regular Interests; Acceptance by the Trustee.

        The Company, as of the Closing Date, and concurrently with the execution
and delivery hereof,   does hereby assign without   recourse all the right,   title
and   interest   of the   Company   in and to the   Uncertificated   REMIC   I   Regular
Interests   to the   Trustee   for the   benefit   of the   Holders   of each   Class of
Certificates (other than the Class R-I Certificates).   The Trustee   acknowledges
receipt of the   Uncertificated   REMIC I Regular   Interests   and declares that it
holds and will hold the same in trust for the   exclusive   use and benefit of all
present and future Holders of each Class of   Certificates   (other than the Class
R-I   Certificates).   The rights of the   Holders   of each   Class of   Certificates
(other   than the Class   R-I   Certificates)   to   receive   distributions   from the
proceeds of REMIC II in respect of such Classes,   and all ownership interests of
the Holders of such Classes in such distributions   shall be as set forth in this
Agreement.

Section 2.07 Issuance of Certificates Evidencing Interest in REMIC II.

        The Trustee   acknowledges   the   assignment   to it of the   Uncertificated
REMIC I Regular Interests and, concurrently   therewith and in exchange therefor,
pursuant   to the written   request of the   Company   executed by an officer of the
Company,   the Trustee has executed and caused to be authenticated   and delivered
to or upon the order of the Company, all Classes of Certificates (other than the
Class   R-I   Certificates)   in   authorized   denominations,    which   evidence   the
beneficial interest in the entire REMIC II.

Section 2.08 Purposes and Powers of the Trust. (See Section 2.08 of the Standard
        Terms).

Section 2.09    Agreement Regarding Ability to Disclose.

        The   Company,    the   Master   Servicer   and   the   Trustee   hereby   agree,
notwithstanding any other express or implied agreement to the contrary, that any
and all Persons,   and any of their respective   employees,   representatives,   and
other agents may disclose,   immediately upon commencement of discussions, to any
and all Persons,   without   limitation   of any kind,   the tax   treatment   and tax
structure of the transaction   and all materials of any kind (including   opinions
or other tax   analyses)   that are   provided to any of them   relating to such tax
treatment   and tax   structure.   For purposes of this   paragraph,   the terms "tax
treatment"   and "tax   structure"   are   defined   under   Treasury   Regulation   ss.
1.6011-4(c).



<PAGE>

ARTICLE III


                          ADMINISTRATION AND SERVICING

                                OF MORTGAGE LOANS

Section   3.01   Master   Servicer to Act as   Servicer.   (See   Section   3.01 of the
Standard Terms)

Section                3.02 Subservicing   Agreements   Between Master Servicer and
                      Subservicers;   Enforcement of   Subservicers'   and Sellers'
                      Obligations.

(a) The Master Servicer may continue in effect   Subservicing   Agreements entered
into by Residential Funding and Subservicers prior to the execution and delivery
of   this   Agreement   and   may   enter   into   new   Subservicing    Agreements   with
Subservicers for the servicing and administration of all or some of the Mortgage
Loans. Each Subservicer shall be either (i) an institution the accounts of which
are insured by the FDIC or (ii)   another   entity that engages in the business of
originating or servicing   mortgage loans, and in either case shall be authorized
to   transact   business   in the state or states   in which the   related   Mortgaged
Properties   it is to service   are   situated,   if and to the extent   required   by
applicable law to enable the   Subservicer to perform its   obligations   hereunder
and under the Subservicing Agreement, and in either case shall be a Freddie Mac,
Fannie Mae or HUD approved mortgage servicer. In addition,   any Subservicer of a
Mortgage   Loan   insured   by the FHA must be an   FHA-approved   servicer,   and any
Subservicer   of a   Mortgage   Loan   guaranteed   by the VA must   be a   VA-approved
servicer.   Each   Subservicer of a Mortgage Loan shall be entitled to receive and
retain, as provided in the related   Subservicing   Agreement and in Section 3.07,
the related Subservicing Fee from payments of interest received on such Mortgage
Loan after payment of all amounts required to be remitted to the Master Servicer
in respect of such Mortgage Loan. For any Mortgage Loan that is a Nonsubserviced
Mortgage   Loan,   the Master   Servicer shall be entitled to receive and retain an
amount   equal to the   Subservicing   Fee from   payments of   interest.   Unless the
context otherwise requires,   references in this Agreement to actions taken or to
be taken by the Master   Servicer in servicing the Mortgage Loans include actions
taken or to be taken by a   Subservicer   on behalf of the Master   Servicer.   Each
Subservicing   Agreement   will be upon such terms and conditions as are generally
required   by,   permitted   by or   consistent   with the Program   Guide and are not
inconsistent   with this Agreement and as the Master Servicer and the Subservicer
have   agreed;   provided   that,   the   Subservicing   Agreement   between the Master
Servicer and Wells Fargo,   if any, will be upon such terms and conditions as are
consistent   with this Agreement and as the Master   Servicer and the   Subservicer
have   agreed,   which may not be   consistent   with the   Program   Guide.   With the
approval of the Master   Servicer,   a   Subservicer   may   delegate   its   servicing
obligations to third-party servicers, but such Subservicer will remain obligated
under the related Subservicing Agreement.   The Master Servicer and a Subservicer
may enter into amendments thereto or a different form of Subservicing Agreement,
and the form referred to or included in the Program Guide is merely provided for
information   and shall not be deemed to limit in any respect the   discretion   of
the Master Servicer to modify or enter into different   Subservicing   Agreements;
provided,   however,   that   any   such   amendments   or   different   forms   shall be
consistent   with and not violate the   provisions of either this Agreement or the
Program   Guide in a manner   which   would   materially   and   adversely   affect the
interests   of   the    Certificateholders.    The   Program    Guide   and   any   other
Subservicing   Agreement   entered   into   between   the   Master   Servicer   and   any
Subservicer   shall require the   Subservicer   to accurately   and fully report its
borrower credit files to each of the Credit Repositories in a timely manner.

(b) (See Section 3.02(b) of the Standard Terms)

Section 3.03    Successor Subservicers.   (See Section 3.03 of the Standard Terms)

Section 3.04 Liability of the Master Servicer. (See Section 3.04 of the Standard
        Terms)

Section 3.05 No   Contractual   Relationship   Between   Subservicer   and Trustee or
        Certificateholders. (See Section 3.05 of the Standard Terms)

Section 3.06   Assumption or Termination of   Subservicing   Agreements by Trustee.
        (See Section 3.06 of the Standard Terms)

Section 3.07 Collection of Certain Mortgage Loan Payments; Deposits to Custodial
        Account. (See Section 3.07 of the Standard Terms)

Section 3.08 Subservicing Accounts; Servicing Accounts. (See Section 3.08 of the
         Standard Terms)

Section 3.09   Access to Certain   Documentation   and   Information   Regarding   the
        Mortgage Loans. (See Section 3.09 of the Standard Terms)

Section 3.10 Permitted Withdrawals from the Custodial Account. (See Section 3.10
        of the Standard Terms)

Section 3.11   Maintenance   of   the   Primary   Insurance    Policies;    Collections
        Thereunder. (See Section 3.11 of the Standard Terms)

Section 3.12 Maintenance of Fire Insurance and Omissions and Fidelity   Coverage.
        (See Section 3.12 of the Standard Terms)

Section 3.13   Enforcement of Due-on-Sale   Clauses;   Assumption and   Modification
        Agreements;   Certain   Assignments.   (See   Section   3.13 of the   Standard
        Terms)

Section 3.14 Realization Upon Defaulted Mortgage Loans. (See Section 3.14 of the
        Standard Terms)

Section 3.15 Trustee to Cooperate; Release of Custodial Files. (See Section 3.15
        of the Standard Terms)

Section 3.16   Servicing   and Other   Compensation;   Compensating   Interest.   (See
        Section 3.16 of the Standard Terms)

Section 3.17   Reports to the Trustee and the   Company.   (See Section 3.17 of the
        Standard Terms)

Section 3.18   Annual   Statement   as to   Compliance.   (See   Section   3.18   of the
        Standard Terms)

Section 3.19 Annual   Independent   Public   Accountants'   Servicing   Report.   (See
        Section 3.19 of the Standard Terms)

Section 3.20   Rights of the   Company in Respect   of the   Master   Servicer.   (See
        Section 3.20 of the Standard Terms)

Section 3.21   Administration of Buydown Funds. (See Section 3.21 of the Standard
        Terms)

Section 3.22    Advance Facility.   (See Section 3.22 of the Standard Terms)


<PAGE>

ARTICLE IV


                                   PAYMENTS TO

                                CERTIFICATEHOLDERS

Section 4.01    Certificate Account.   (See Section 4.01 of the Standard Terms)

Section 4.02    Distributions.

(a)      On each   Distribution   Date,   (x) the Master   Servicer   on behalf of the
        Trustee   or   (y)   the   Paying   Agent   appointed   by the   Trustee,   shall
        distribute (I) to the Master Servicer or a sub-servicer,   in the case of
        a   distribution   pursuant   to   Section   4.02(a)(iii)   below,   the amount
        required to be   distributed   to the Master   Servicer   or a   sub-servicer
        pursuant    to    Section    4.02(a)(iii)    below,    and    (II)    to    each
        Certificateholder   of record on the next   preceding   Record   Date (other
        than as provided in Section   9.01   respecting   the final   distribution),
        either   (1)   in   immediately    available   funds   (by   wire   transfer   or
        otherwise) to the account of such   Certificateholder   at a bank or other
        entity having appropriate facilities therefor, if such Certificateholder
        has so notified the Master Servicer or the Paying Agent, as the case may
        be, or (2) if such   Certificateholder   has not so   notified   the   Master
        Servicer or the Paying Agent by the Record Date, by check mailed to such
        Certificateholder   at   the   address   of   such   Holder   appearing   in the
        Certificate Register,   such   Certificateholder's   share (which share (A)
        with respect to each Class of   Certificates   (other than any Subclass of
         the   Class A-V   Certificates),   shall be based on the   aggregate   of the
        Percentage Interests represented by Certificates of the applicable Class
        held by such Holder or (B) with respect to any Subclass of the Class A-V
        Certificates, shall be equal to the amount (if any) distributed pursuant
        to Section 4.02(a)(i) below to each Holder of a Subclass thereof) of the
        following   amounts,   in the following order of priority   (subject to the
        provisions of Section 4.02(b) below),   in each case to the extent of the
        Available Distribution Amount:

(i)      to the Senior   Certificates (other than the Principal Only Certificates)
        on a pro rata basis based on the Accrued Certificate Interest payable on
         such   Certificates   with   respect   to such   Distribution   Date,   Accrued
        Certificate Interest on such Classes of Certificates (or Subclasses,   if
        any, with respect to the Class A-V   Certificates)   for such Distribution
        Date   (provided   that for the   purpose of this   Section   4.02(a)(i)   the
        Available   Funds Cap for the Class   A-11   Certificates   shall be 6.00%),
        plus any Accrued Certificate   Interest thereon remaining unpaid from any
        previous   Distribution Date, except as provided in the last paragraph of
        this Section 4.02(a);

(ii)     (X) to the Class A-P Certificates,   the Class A-P Principal Distribution
        Amount (as defined in Section 4.02(b)(i) herein),   until the Certificate
        Principal   Balance   of the Class A-P   Certificates   has been   reduced to
        zero; and

                      (Y) to the Senior   Certificates   (other than the Class A-P
               Certificates),   in   the   priorities   and   amounts   set   forth   in
                Sections   4.02(b)(ii)   through 4.02(d),   the sum of the following
               (applied   to reduce the   Certificate   Principal   Balances of such
               Senior Certificates, as applicable):

(A)      the Senior   Percentage for such   Distribution   Date times the sum of the
        following:

(1)      the principal portion of each Monthly Payment due during the related Due
        Period   on each   Outstanding   Mortgage   Loan   (other   than   the   related
        Discount   Fraction of the principal portion of such payment with respect
        to a Discount Mortgage Loan), whether or not received on or prior to the
        related   Determination   Date,   minus the   principal   portion of any Debt
        Service   Reduction   (other   than the   related   Discount   Fraction of the
        principal   portion of such Debt Service   Reductions with respect to each
        Discount   Mortgage   Loan) which   together with other   Bankruptcy   Losses
        exceeds the Bankruptcy Amount;

(2)      the Stated Principal Balance of any Mortgage Loan repurchased during the
        preceding   calendar   month (or   deemed to have   been so   repurchased   in
        accordance   with   Section   3.07(b) of the   Standard   Terms)   pursuant to
        Sections   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
        preceding   calendar month (other than the related   Discount   Fraction of
        such Stated Principal Balance or shortfall with respect to each Discount
        Mortgage Loan); and

(3)      the principal portion of all other unscheduled   collections   (other than
        Principal   Prepayments in Full and   Curtailments and amounts received in
        connection with a Cash Liquidation or REO Disposition of a Mortgage Loan
        described   in Section   4.02(a)(ii)(Y)(2)(B)   of this Series   Supplement,
        including without limitation   Insurance Proceeds,   Liquidation   Proceeds
        and REO Proceeds)   including   Subsequent   Recoveries received during the
        preceding   calendar   month   (or   deemed   to   have   been so   received   in
        accordance   with Section   3.07(b) of the   Standard   Terms) to the extent
        applied by the Master Servicer as recoveries of principal of the related
        Mortgage Loan pursuant to Section 3.14 of the Standard Terms (other than
        the   related   Discount    Fraction   of   the   principal   portion   of   such
        unscheduled collections, with respect to each Discount Mortgage Loan);

(B)      with respect to each Mortgage Loan for which a Cash Liquidation or a REO
        Disposition   occurred during the preceding calendar month (or was deemed
        to have occurred   during such period in accordance   with Section 3.07(b)
        of the Standard   Terms) and did not result in any Excess   Special Hazard
        Losses,   Excess Fraud Losses,   Excess Bankruptcy Losses or Extraordinary
        Losses,   an amount equal to the lesser of (a) the Senior   Percentage for
        such   Distribution   Date   times the   Stated   Principal   Balance   of such
        Mortgage Loan (other than the related   Discount   Fraction of such Stated
        Principal Balance,   with respect to each Discount Mortgage Loan) and (b)
        the Senior   Accelerated   Distribution   Percentage for such   Distribution
        Date   times   the   related   unscheduled   collections   (including   without
        limitation Insurance Proceeds, Liquidation Proceeds and REO Proceeds) to
        the extent applied by the Master   Servicer as recoveries of principal of
        the related Mortgage Loan pursuant to Section 3.14 of the Standard Terms
        (in each case other than the   portion of such   unscheduled   collections,
        with   respect   to   a   Discount    Mortgage   Loan,    included   in   Section
        4.02(b)(i)(C) of this Series Supplement);

(C)      the Senior   Accelerated   Distribution   Percentage for such   Distribution
        Date times the aggregate of all Principal   Prepayments   in Full received
        in the   related   Prepayment   Period   and   Curtailments   received   in the
        preceding   calendar month (other than the related   Discount   Fraction of
        such   Principal   Prepayments in Full and   Curtailments,   with respect to
        each Discount Mortgage Loan);

(D)      any Excess Subordinate Principal Amount for such Distribution Date;

(E)      any amounts described in subsection (ii)(Y), clauses (A), (B) and (C) of
        this Section 4.02(a), as determined for any previous   Distribution Date,
        which remain unpaid after application of amounts previously   distributed
        pursuant   to this   clause (E) to the extent   that such   amounts   are not
        attributable   to   Realized   Losses   which   have   been   allocated   to the
        Subordinate Certificates; minus

(F)      the   Capitalization   Reimbursement   Amount for such   Distribution   Date,
        other than the related   Discount   Fraction of any portion of that amount
        related to each Discount   Mortgage Loan,   multiplied by a fraction,   the
        numerator of which is the Senior Principal   Distribution Amount, without
        giving   effect to this clause (F), and the   denominator   of which is the
        sum   of   the    principal    distribution    amounts   for   all   Classes   of
        Certificates   other   than the Class   A-P   Certificates,   without   giving
        effect to any reductions for the Capitalization Reimbursement Amount;

(iii)    if the Certificate   Principal   Balances of the Subordinate   Certificates
        have not been reduced to zero, to the Master Servicer or a Sub-Servicer,
        by remitting for deposit to the Custodial Account,   to the extent of and
        in reimbursement   for any Advances or Sub-Servicer   Advances   previously
        made with   respect to any   Mortgage   Loan or REO   Property   which remain
        unreimbursed   in whole or in part following the Cash   Liquidation or REO
        Disposition   of such   Mortgage   Loan or REO   Property,   minus   any   such
        Advances that were made with respect to   delinquencies   that   ultimately
        constituted   Excess Special Hazard Losses,   Excess Fraud Losses,   Excess
        Bankruptcy Losses or Extraordinary Losses;

(iv)     to the Holders of the Class M-1   Certificates,   the Accrued   Certificate
        Interest    thereon   for   such    Distribution    Date,   plus   any   Accrued
        Certificate    Interest   thereon    remaining   unpaid   from   any   previous
        Distribution Date, except as provided below;

(v)      to the Holders of the Class M-1 Certificates, an amount equal to (x) the
        Subordinate Principal Distribution Amount for such Class of Certificates
        for such   Distribution   Date,   minus   (y) the   amount   of any   Class A-P
        Collection Shortfalls for such Distribution Date or remaining unpaid for
        all previous   Distribution   Dates,   to the extent the amounts   available
        pursuant to clause (x) of Sections   4.02(a)(vii),   (ix),   (xi),   (xiii),
        (xiv) and (xv) of this   Series   Supplement   are   insufficient   therefor,
        applied in reduction of the Certificate   Principal   Balance of the Class
        M-1 Certificates;

(vi)     to the Holders of the Class M-2   Certificates,   the Accrued   Certificate
        Interest    thereon   for   such    Distribution    Date,   plus   any   Accrued
        Certificate    Interest   thereon    remaining   unpaid   from   any   previous
        Distribution Date, except as provided below;

(vii)    to the Holders of the Class M-2 Certificates, an amount equal to (x) the
        Subordinate Principal Distribution Amount for such Class of Certificates
        for such   Distribution   Date,   minus   (y) the   amount   of any   Class A-P
        Collection Shortfalls for such Distribution Date or remaining unpaid for
        all previous   Distribution   Dates,   to the extent the amounts   available
        pursuant to clause (x) of Sections 4.02(a)(ix),   (xi), (xiii), (xiv) and
        (xv) of this Series   Supplement are   insufficient   therefor,   applied in
        reduction   of   the   Certificate   Principal   Balance   of   the   Class   M-2
        Certificates;

(viii)   to the Holders of the Class M-3   Certificates,   the Accrued   Certificate
        Interest    thereon   for   such    Distribution    Date,   plus   any   Accrued
        Certificate    Interest   thereon    remaining   unpaid   from   any   previous
        Distribution Date, except as provided below;

(ix)     to the Holders of the Class M-3 Certificates, an amount equal to (x) the
         Subordinate Principal Distribution Amount for such Class of Certificates
        for such   Distribution   Date   minus   (y) the   amount   of any   Class   A-P
        Collection Shortfalls for such Distribution Date or remaining unpaid for
        all previous   Distribution   Dates,   to the extent the amounts   available
        pursuant to clause (x) of Sections   4.02(a)(xi),   (xiii), (xiv) and (xv)
        of   this   Series   Supplement   are   insufficient   therefor,    applied   in
        reduction   of   the   Certificate   Principal   Balance   of   the   Class   M-3
        Certificates;

(x)      to the Holders of the Class B-1   Certificates,   the Accrued   Certificate
        Interest    thereon   for   such    Distribution    Date,   plus   any   Accrued
        Certificate    Interest   thereon    remaining   unpaid   from   any   previous
        Distribution Date, except as provided below;

(xi)     to the Holders of the Class B-1 Certificates, an amount equal to (x) the
        Subordinate Principal Distribution Amount for such Class of Certificates
        for such   Distribution   Date   minus   (y) the   amount   of any   Class   A-P
        Collection Shortfalls for such Distribution Date or remaining unpaid for
        all previous   Distribution   Dates,   to the extent the amounts   available
        pursuant to clause (x) of Sections 4.02(a)(xiii), (xiv) and (xv) of this
        Series Supplement are insufficient therefor, applied in reduction of the
        Certificate Principal Balance of the Class B-1 Certificates;

(xii)    to the Holders of the Class B-2   Certificates,   the Accrued   Certificate
        Interest    thereon   for   such    Distribution    Date,   plus   any   Accrued
        Certificate    Interest   thereon    remaining   unpaid   from   any   previous
        Distribution Date, except as provided below;

(xiii)   to the Holders of the Class B-2 Certificates, an amount equal to (x) the
        Subordinate Principal Distribution Amount for such Class of Certificates
        for such   Distribution   Date   minus   (y) the   amount   of any   Class   A-P
        Collection Shortfalls for such Distribution Date or remaining unpaid for
        all previous   Distribution   Dates,   to the extent the amounts   available
        pursuant to clause (x) of Sections   4.02(a)(xiv) and (xv) of this Series
        Supplement   are   insufficient   therefor,   applied   in   reduction   of the
        Certificate Principal Balance of the Class B-2 Certificates;

(xiv)    to the Holders of the Class B-3 Certificates, an amount equal to (x) the
        Accrued   Certificate   Interest thereon for such Distribution   Date, plus
        any   Accrued   Certificate   Interest   thereon   remaining   unpaid from any
        previous   Distribution   Date,   except as provided   below,   minus (y) the
        amount of any Class A-P Collection Shortfalls for such Distribution Date
        or remaining unpaid for all previous   Distribution   Dates, to the extent
        the amounts available   pursuant to clause (x) of Section   4.02(a)(xv) of
        this Series Supplement are insufficient therefor;

(xv)     to the Holders of the Class B-3 Certificates, an amount equal to (x) the
        Subordinate Principal Distribution Amount for such Class of Certificates
        for such   Distribution   Date   minus   (y) the   amount   of any   Class   A-P
         Collection Shortfalls for such Distribution Date or remaining unpaid for
        all previous Distribution Dates, applied in reduction of the Certificate
        Principal Balance of the Class B-3 Certificates;

(xvi)    to the Senior Certificates, in the priority set forth in Section 4.02(b)
        of   this   Series   Supplement,   the   portion,   if any,   of the   Available
        Distribution Amount remaining after the foregoing distributions, applied
        to   reduce   the    Certificate    Principal     Balances    of   such    Senior
        Certificates, but in no event more than the aggregate of the outstanding
        Certificate    Principal    Balances    of   each    such    Class   of   Senior
        Certificates,   and thereafter, to each Class of Subordinate Certificates
        then   outstanding   beginning with such Class with the Highest   Priority,
        any portion of the Available   Distribution   Amount   remaining   after the
        Senior Certificates have been retired, applied to reduce the Certificate
        Principal Balance of each such Class of Subordinate Certificates, but in
        no event more than the outstanding Certificate Principal Balance of each
        such Class of Subordinate Certificates; and

(xvii)   to the Class R-II   Certificates,   the balance,   if any, of the Available
        Distribution Amount.

        Notwithstanding the foregoing, on any Distribution Date, with respect to
the Class of Subordinate Certificates outstanding on such Distribution Date with
the Lowest Priority, or in the event the Subordinate   Certificates are no longer
outstanding,   the Senior   Certificates,   Accrued   Certificate   Interest   thereon
remaining unpaid from any previous   Distribution Date will be distributable only
to the extent   that (1) a   shortfall   in the   amounts   available   to pay Accrued
Certificate   Interest on any Class of Certificates results from an interest rate
reduction   in   connection   with a   Servicing   Modification,   or (2) such   unpaid
Accrued Certificate Interest was attributable to interest shortfalls relating to
the   failure   of the   Master   Servicer   to make   any   required   Advance,   or the
determination   by the   Master   Servicer   that any   proposed   Advance   would be a
Nonrecoverable   Advance   with   respect to the related   Mortgage   Loan where such
Mortgage   Loan   has   not yet   been   the   subject   of a Cash   Liquidation   or REO
Disposition   or the related   Liquidation   Proceeds,   Insurance   Proceeds and REO
Proceeds have not yet been distributed to the Certificateholders.

(b)       Distributions    of   principal   on   the   Senior    Certificates    on   each
        Distribution   Date occurring prior to the Credit Support   Depletion Date
        will be made as follows:

(i)      to the Class A-P Certificates,   until the Certificate   Principal Balance
        thereof   is   reduced   to zero,   an   amount   (the   "Class   A-P   Principal
        Distribution Amount") equal to the aggregate of:

(A)      the related Discount   Fraction of the principal   portion of each Monthly
        Payment   on each   Discount   Mortgage   Loan due during   the   related   Due
        Period, whether or not received on or prior to the related Determination
        Date,   minus the   Discount   Fraction   of the   principal   portion   of any
        related Debt Service   Reduction   which   together   with other   Bankruptcy
        Losses exceeds the Bankruptcy Amount;

(B)      the   related   Discount    Fraction   of   the   principal    portion   of   all
        unscheduled   collections on each Discount   Mortgage Loan received during
        the preceding calendar month or, in the case of Principal Prepayments in
        Full, during the related   Prepayment Period (other than amounts received
        in connection   with a Cash   Liquidation or REO Disposition of a Discount
        Mortgage   Loan   described   in clause   (C)   below),   including   Principal
        Prepayments in Full, Curtailments, Subsequent Recoveries and repurchases
        (including   deemed   repurchases   under   Section   3.07(b) of the Standard
        Terms) of Discount   Mortgage Loans (or, in the case of a substitution of
        a Deleted   Mortgage   Loan,   the   Discount   Fraction of the amount of any
        shortfall   deposited in the Custodial   Account in   connection   with such
        substitution);

(C)      in connection with the Cash Liquidation or REO Disposition of a Discount
        Mortgage Loan that did not result in any Excess   Special   Hazard Losses,
        Excess Fraud Losses,   Excess Bankruptcy Losses or Extraordinary   Losses,
        an amount equal to the lesser of (1) the applicable Discount Fraction of
        the Stated Principal   Balance of such Discount Mortgage Loan immediately
        prior to such   Distribution   Date and (2) the   aggregate   amount   of the
        collections   on such   Discount   Mortgage   Loan to the extent   applied as
        recoveries of principal;

(D)      any amounts   allocable to principal for any previous   Distribution   Date
        (calculated   pursuant   to clauses   (A)   through   (C) above)   that remain
        undistributed; and

(E)      the amount of any Class A-P Collection   Shortfalls for such Distribution
        Date and the   amount of any Class A-P   Collection   Shortfalls   remaining
        unpaid for all previous   Distribution   Dates,   but only to the extent of
         the Eligible Funds for such Distribution Date; minus

(F)      the   related   Discount   Fraction   of the   portion of the   Capitalization
        Reimbursement Amount for such Distribution Date, if any, related to each
        Discount Mortgage Loan; and

(ii)     the   Senior    Principal    Distribution    Amount   shall   be    distributed
        concurrently as follows:

               (A) first, to the Class A-5 and Class A-6 Certificates, pro rata,
        in accordance with their respective   Certificate   Principal Balances, an
        amount up to the Lockout Amount for that   Distribution   Date,   until the
        Certificate Principal Balances thereof have been reduced to zero;

               (B)   second,   to the   Class   R-I   and   Class   R-II   Certificates,
        sequentially,   in that order,   until the Certificate   Principal Balances
        thereof have been reduced to zero;

               (C)   third,   the   balance of the   Senior   Principal   Distribution
        Amount remaining after the   distributions,   if any, described in Section
        4.02(b)(ii)(B) above, will be distributed concurrently as follows:

                             (1)   14.8213600973642%   of the amount   described in
                      Section   4.02(b)(ii)(C)   will be   distributed to the Class
                      A-11 Certificates, until the Certificate Principal Balance
                      thereof has been reduced to zero; and

                             (2)   85.1786399026358%   of the amount   described in
                       Section    4.02(b)(ii)(C)    will   be    distributed   in   the
                      following order of priority:

                                    (x) first, concurrently as follows:

                                            (i)   9.78297449382890% of the amount
                                            described in Section   4.02(b)(ii)(C)
                                            will be distributed to the Class A-2
                                            Certificates,   until the Certificate
                                            Principal   Balance   thereof has been
                                            reduced to zero;

                                            (ii) 2.44574362345722% of the amount
                                             described in Section   4.02(b)(ii)(C)
                                            will be distributed to the Class A-7
                                            Certificates,   until the Certificate
                                            Principal   Balance   thereof has been
                                            reduced to zero;

                                            (iii)    3.34421200097047%    of    the
                                            amount     described     in     Section
                                            4.02(b)(ii)(C)   will be   distributed
                                            to   the   Class   A-15    Certificates,
                                            until   the    Certificate    Principal
                                             Balance   thereof has been reduced to
                                            zero;

                                            (iv)    46.46912884568727%    of    the
                                            amount     described     in     Section
                                            4.02(b)(ii)(C)   will be   distributed
                                            to the   Class   A-8   and   Class   A-10
                                            Certificates,   sequentially, in that
                                            order,     until    the     Certificate
                                            Principal Balances thereof have been
                                            reduced to zero; and

                                             (v) 37.95794103605613% of the amount
                                            described in Section   4.02(b)(ii)(C)
                                            will be distributed in the following
                                             order of priority:

                                                   (a)   first,   an   amount up to
                                                   $120,   to the Class   A-13 and
                                                   Class A-14 Certificates,   pro
                                                   rata,   in    accordance    with
                                                   their respective   Certificate
                                                   Principal   Balances   thereof,
                                                   until      the      Certificate
                                                   Principal    Balances   thereof
                                                   have been reduced to zero;

                                                    (b) second,   with   respect to
                                                   any      Distribution      Date
                                                   occurring   on   or   after   the
                                                    Distribution   Date in October
                                                   2008,    an    amount    up    to
                                                   $690,000,   to the   Class   A-1
                                                    Certificates,     until     the
                                                   Certificate Principal Balance
                                                   thereof   has been   reduced to
                                                    zero;

                                                   (c) third,   to the Class A-13
                                                   and Class A-14   Certificates,
                                                   pro rata, in accordance   with
                                                   their respective   Certificate
                                                   Principal   Balances   thereof,
                                                   until      the      Certificate
                                                    Principal    Balances   thereof
                                                   have   been   reduced   to zero;
                                                   and

                                                    (d)   fourth,   o the Class A-1
                                                   Certificates,     until     the
                                                   Certificate Principal Balance
                                                   thereof   has been   reduced to
                                                   zero; and

                                    (y) second, to the Class A-16   Certificates,
                             until the Certificate   Principal   Balances   thereof
                              have been reduced to zero; and

               (D)   fourth,   to the Class A-5 and   Class A-6   Certificates,   pro
        rata, in accordance with their respective Certificate Principal Balances
        and without   regard to the Lockout   Amount for that   Distribution   Date,
        until the Certificate   Principal   Balances   thereof have been reduced to
        zero.

(c) On or after   the   occurrence   of the   Credit   Support   Depletion   Date,   all
priorities   relating to   distributions   as described in Section   4.02(b) of this
Series Supplement in respect of principal among the Senior   Certificates   (other
than the Class A-P Certificates) will be disregarded, and (i) an amount equal to
the   Discount   Fraction   of the   principal   portion of   scheduled   payments   and
unscheduled collections received or advanced in respect of the Discount Mortgage
Loans   minus   the   Discount   Fraction   of   the   portion   of   the   Capitalization
Reimbursement Amount for such Distribution Date will be distributed to the Class
A-P   Certificates,   (ii)   the   Senior   Principal   Distribution   Amount   will   be
distributed   to the   remaining   Senior   Certificates   (other   than the Class A-P
Certificates)    pro   rata   in   accordance   with   their   respective    outstanding
Certificate   Principal   Balances   and (iii)   the   amount   set   forth in   Section
4.02(a)(i) herein will be distributed as set forth therein.

(d) After the   reduction   of the   Certificate   Principal   Balances of the Senior
Certificates   (other than the Class A-P   Certificates)   to zero but prior to the
Credit Support Depletion Date, the Senior Certificates (other than the Class A-P
Certificates) will be entitled to no further   distributions of principal thereon
and the Available   Distribution Amount will be paid solely to the holders of the
Class A-P Certificates, Class A-V Certificates, Class M Certificates and Class B
Certificates, in each case as described herein.

(e) In addition to the foregoing   distributions,   with respect to any Subsequent
Recoveries,   the Master   Servicer   shall   deposit such funds into the   Custodial
Account   pursuant to Section   3.07(b)(iii).   If,   after taking into account such
Subsequent   Recoveries,   the amount of a Realized Loss is reduced, the amount of
such Subsequent Recoveries will be applied to increase the Certificate Principal
Balance of the Class of Subordinate   Certificates   with the Highest   Priority to
which Realized Losses, other than Excess Bankruptcy Losses, Excess Fraud Losses,
Excess Special Hazard Losses and Extraordinary Losses, have been allocated,   but
not by more than the amount of   Realized   Losses   previously   allocated   to that
Class of   Certificates   pursuant to Section   4.05.   The amount of any   remaining
Subsequent   Recoveries   will be applied to increase   the   Certificate   Principal
Balance of the Class of   Certificates   with the next Lower   Priority,   up to the
amount   of   such   Realized   Losses    previously    allocated   to   that   Class   of
Certificates   pursuant to Section 4.05. Any remaining Subsequent Recoveries will
in turn be applied to increase the Certificate Principal Balance of the Class of
Certificates   with the next Lower   Priority   up to the   amount of such   Realized
Losses   previously   allocated to that Class of Certificates   pursuant to Section
4.05,   and so on.   Holders   of such   Certificates   will not be   entitled   to any
payment   in   respect   of   Accrued   Certificate   Interest   on the   amount of such
increases for any Interest   Accrual Period   preceding the   Distribution   Date on
which   such   increase   occurs.   Any   such   increases   shall   be   applied   to the
Certificate   Principal   Balance of each   Certificate of such Class in accordance
with its respective Percentage Interest.

(f)   On   each   Distribution   Date,   the   Trustee   will   first   transfer   to   the
Certificate   Account   and then   distribute   to the Class A-11   Certificates   any
amounts on deposit in the Reserve   Fund in an amount up to the Yield   Supplement
Amount for such Distribution Date.

(g) Each distribution with respect to a Book-Entry   Certificate shall be paid to
the   Depository,    as   Holder   thereof,   and   the   Depository   shall   be   solely
responsible for crediting the amount of such distribution to the accounts of its
Depository    Participants   in   accordance   with   its   normal   procedures.    Each
Depository   Participant shall be responsible for disbursing such distribution to
the   Certificate   Owners that it represents   and to each indirect   participating
brokerage firm (a "brokerage firm" or "indirect   participating   firm") for which
it acts as agent.   Each brokerage firm shall be responsible for disbursing funds
to   the   Certificate   Owners   that   it   represents.   None   of the   Trustee,   the
Certificate   Registrar,   the   Company   or the   Master   Servicer   shall   have any
responsibility   therefor except as otherwise   provided by this Series Supplement
or applicable law.

(h) Except as   otherwise   provided   in   Section   9.01,   if the   Master   Servicer
anticipates that a final   distribution with respect to any Class of Certificates
will be made on a future   Distribution Date, the Master Servicer shall, no later
than 40 days   prior to such   final   distribution,   notify   the   Trustee   and the
Trustee shall,   not earlier than the 15th day and not later than the 25th day of
the month next preceding the month of such final   distribution,   distribute,   or
cause to be distributed to each Holder of such Class of Certificates a notice to
the effect that: (i) the Trustee   anticipates that the final   distribution   with
respect to such Class of Certificates will be made on such Distribution Date but
only upon   presentation and surrender of such   Certificates at the office of the
Trustee or as otherwise specified therein,   and (ii) no interest shall accrue on
such Certificates from and after the end of the related Interest Accrual Period.
In the event that   Certificateholders   required to surrender their   Certificates
pursuant   to   Section   9.01(c) do not   surrender   their   Certificates   for final
cancellation,   the Trustee shall cause funds   distributable with respect to such
Certificates   to be   withdrawn   from the   Certificate   Account and credited to a
separate escrow account for the benefit of such   Certificateholders   as provided
in Section 9.01(d).

Section 4.03 Statements to   Certificateholders;   Statements to Rating   Agencies;
        Exchange Act   Reporting.   (See   Section   4.03 of the Standard   Terms and
        Exhibit Three hereto)

Section 4.04 Distribution of Reports to the Trustee and the Company; Advances by
        the Master Servicer. (See Section 4.04 of the Standard Terms)

Section 4.05    Allocation of Realized Losses.

        Prior to each Distribution Date, the Master Servicer shall determine the
total   amount   of   Realized   Losses,    if   any,   that   resulted   from   any   Cash
Liquidation, Servicing Modification, Debt Service Reduction, Deficient Valuation
or REO Disposition that occurred during the related Prepayment Period or, in the
case of a Servicing   Modification   that   constitutes a reduction of the interest
rate on a Mortgage Loan, the amount of the reduction in the interest   portion of
the   Monthly   Payment   due during the   related   Due   Period.   The amount of each
Realized   Loss shall be   evidenced   by an   Officers'   Certificate.   All Realized
Losses, other than Excess Special Hazard Losses,   Extraordinary   Losses,   Excess
Bankruptcy Losses or Excess Fraud Losses, shall be allocated as follows:   first,
to the Class B-3 Certificates   until the Certificate   Principal   Balance thereof
has been   reduced   to zero;   second,   to the   Class B-2   Certificates   until the
Certificate   Principal   Balance thereof has been reduced to zero;   third, to the
Class B-1 Certificates until the Certificate   Principal Balance thereof has been
reduced to zero;   fourth,   to the Class M-3   Certificates   until the Certificate
Principal   Balance   thereof has been   reduced to zero;   fifth,   to the Class M-2
Certificates until the Certificate Principal Balance thereof has been reduced to
zero;   sixth,   to the Class M-1   Certificates   until the   Certificate   Principal
Balance thereof has been reduced to zero; and, thereafter,   if any such Realized
Losses are on a Discount   Mortgage   Loan,   to the Class A-P   Certificates   in an
amount equal to the Discount Fraction of the principal portion thereof,   and the
remainder of such Realized Losses on the Discount   Mortgage Loans and the entire
amount of such Realized Losses on Non-Discount   Mortgage Loans will be allocated
among all the Senior   Certificates   (other than the Class A-V   Certificates   and
Class A-P   Certificates) in the case of the principal   portion of such loss on a
pro rata basis and among all of the Senior   Certificates   (other   than the Class
A-P Certificates) in the case of the interest portion of such loss on a pro rata
basis,   as   described   below;   provided,   however,   that such   losses   otherwise
allocable   to the   Class A-6   Certificates   will be   allocated   to the Class A-5
Certificates    until   the   Certificate    Principal   Balance   of   the   Class   A-5
Certificates has been reduced to zero.

        On any Distribution Date, Realized Losses will be allocated as set forth
herein after distributions of principal on the Certificates as set forth herein.

        As used herein,   an   allocation of a Realized Loss on a "pro rata basis"
among two or more specified Classes of Certificates means an allocation on a pro
rata   basis,   among the   various   Classes   so   specified,   to each such Class of
Certificates   on the   basis   of their   then   outstanding   Certificate   Principal
Balances prior to giving effect to distributions to be made on such Distribution
Date in the case of the   principal   portion of a   Realized   Loss or based on the
Accrued Certificate   Interest thereon payable on such Distribution Date (without
regard to any Compensating   Interest for such Distribution   Date) in the case of
an interest   portion of a Realized   Loss.   Except as   provided in the   following
sentence, any allocation of the principal portion of Realized Losses (other than
Debt Service   Reductions) to a Class of   Certificates   shall be made by reducing
the   Certificate   Principal   Balance   thereof by the amount so allocated,   which
allocation shall be deemed to have occurred on such Distribution Date;   provided
that no such reduction shall reduce the aggregate   Certificate Principal Balance
of the Certificates below the aggregate Stated Principal Balance of the Mortgage
Loans.   Any allocation of the principal   portion of Realized   Losses (other than
Debt Service   Reductions) to the Subordinate   Certificates then outstanding with
the Lowest Priority shall be made by operation of the definition of "Certificate
Principal   Balance"   and by   operation   of the   provisions   of Section   4.02(a).
Allocations of the interest portions of Realized Losses (other than any interest
rate   reduction   resulting   from a   Servicing   Modification)   shall   be   made in
proportion to the amount of Accrued Certificate Interest and by operation of the
definition of "Accrued Certificate   Interest" and by operation of the provisions
of Section   4.02(a).   Allocations   of the   interest   portion of a Realized   Loss
resulting   from an   interest   rate   reduction   in   connection   with a   Servicing
Modification   shall be made by operation of the   provisions of Section   4.02(a).
Allocations of the principal portion of Debt Service Reductions shall be made by
operation of the   provisions   of Section   4.02(a).   All Realized   Losses and all
other losses   allocated to a Class of   Certificates   hereunder will be allocated
among the   Certificates of such Class in proportion to the Percentage   Interests
evidenced thereby; provided that if any Subclasses of the Class A-V Certificates
have been issued   pursuant to Section   5.01(c),   such Realized   Losses and other
losses   allocated to the Class A-V   Certificates   shall be allocated   among such
Subclasses   in   proportion   to the   respective   amounts of   Accrued   Certificate
Interest payable on such   Distribution Date that would have resulted absent such
reductions.

Section 4.06 Reports of Foreclosures and Abandonment of Mortgaged Property. (See
        Section 4.06 of the Standard Terms)

Section 4.07 Optional Purchase of Defaulted Mortgage Loans. (See Section 4.07 of
        the Standard Terms)

Section 4.08    Surety Bond.   (See Section 4.08 of the Standard Terms)

Section 4.09    The Yield Maintenance Agreement.

(a) On the Closing Date, the Trustee is hereby directed to enter into, on behalf
of the Trust Fund, the Yield Maintenance   Agreement for the benefit of the Class
A-11 Certificates with the Yield Maintenance Agreement Provider.

(b) The Trustee shall deposit or cause to be deposited any amount received under
the Yield Maintenance Agreement into the Reserve Fund on the date such amount is
received   from   the   Yield   Maintenance    Agreement   Provider   under   the   Yield
Maintenance    Agreement   (including   Yield   Maintenance    Agreement   Termination
Payments,   if any).   All Yield   Maintenance   Payments   received   under any Yield
Maintenance   Agreement   and   amounts   on deposit   in the   Reserve   Fund shall be
distributed to the Certificate   Account and then to the Class A-11   Certificates
in an   amount up to the   Yield   Supplement   Amount   for such   Distribution   Date
pursuant to Section 4.02(f) hereof,   whereas,   all Yield   Maintenance   Agreement
Termination   Payments   received   under any of the Yield   Maintenance   Agreements
shall be used as set forth in Section 4.09(c) hereof.   Any amounts   remaining in
the Reserve Fund on any Distribution   Date following the distribution   described
in Section   4.02(f)   shall   remain on deposit   in the   Reserve   Fund and will be
available on any future   Distribution   Date to cover any   shortfall   between the
Yield   Supplement   Amount   and   Yield   Maintenance   Payment,   if any,   for   such
Distribution   Date. None of the Yield Maintenance   Agreement,   Yield Maintenance
Payments (including any Yield Maintenance   Termination Payments) nor the Reserve
Fund constitute a part of any REMIC created hereunder.

(c)   Any   amounts   on   deposit   in the   Reserve   Fund on the   Distribution   Date
immediately following the earlier of (i) the Distribution Date in September 2016
and (ii) the date on which the Certificate   Principal   Balance of the Class A-11
Certificates is reduced to zero,   will be distributed to BNP Paribas   Securities
Corp.   and will not be   available   for   payment   to any holder of the Class A-11
Certificates.

(d) In the   event   that the   Yield   Maintenance   Agreement,   or any   replacement
thereof, terminates prior to the Distribution Date in September 2016, the Master
Servicer, but at no expense to the Master Servicer, on behalf of the Trustee, to
the extent that the termination value under such Yield Maintenance   Agreement is
sufficient   therefor and only to the extent of the Yield   Maintenance   Agreement
Termination   Payment   received from the Yield   Maintenance   Agreement   Provider,
shall (i) cause a new yield   maintenance   provider to assume the   obligations of
such terminated yield maintenance   agreement   provider or (ii) cause a new yield
maintenance   agreement   provider   to   enter   into   a   new   interest   rate   yield
maintenance   agreement with the Trust Fund having substantially similar terms as
those   set   forth in such   terminated   Yield   Maintenance   Agreement.   Any Yield
Maintenance   Agreement   Termination   Payment having a termination value which is
not sufficient to comply with clauses (i) and (ii) of this Section 4.09(c) shall
be deposited   into the Reserve Fund and may be   distributed   pursuant to Section
4.02(f) and Section 4.09(c) herein.

Section 4.10    Reserve Fund.

(a) On or before the Closing Date, the Trustee shall establish a Reserve Fund on
behalf of the Holders of the Class A-11   Certificates.   The Reserve Fund must be
an Eligible Account. The Reserve Fund shall be entitled "Reserve Fund, U.S. Bank
National   Association,   as Trustee   for the   benefit   of holders of   Residential
Funding Mortgage Securities I, Inc., Mortgage Pass-Through Certificates,   Series
2006-S8".   The Trustee   shall demand   payment of all money   payable by the Yield
Maintenance   Agreement   Provider under any of the Yield Maintenance   Agreements.
The Trustee shall   deposit in the Reserve Fund all payments   received by it from
the Yield   Maintenance   Agreement   Provider   pursuant   to any Yield   Maintenance
Agreement.   On each Distribution   Date, the Trustee shall remit amounts received
by it from the Yield Maintenance   Agreement Provider to the Holders of the Class
A-11 Certificates,   as applicable,   in the manner provided in Section 4.02(f) as
it is directed by the Master Servicer.

(b) The Reserve Fund is an "outside reserve fund" within the meaning of Treasury
Regulation   ss.1.860G-2(h)   and shall be an asset of the   Trust   Fund but not an
asset of any   REMIC.   The   Trustee on behalf of the Trust   shall be the   nominal
owner of the Reserve Fund. BNP Paribas   Securities Corp. shall be the beneficial
owner of the Reserve Fund, including for federal income tax purposes, subject to
the power of the Trustee to distribute   amounts under Sections 4.02(f) and 4.09.
Amounts in the Reserve Fund shall be held   uninvested   in a trust account of the
Trustee with no liability for interest or other compensation thereon.


<PAGE>



ARTICLE V

                                THE CERTIFICATES


                      (SEE ARTICLE V OF THE STANDARD TERMS)


<PAGE>

ARTICLE VI

                       THE COMPANY AND THE MASTER SERVICER

Section 6.01   Respective   Liabilities of the Company and Master   Servicer.   (See
        Section 6.01 of the Standard Terms.)

Section 6.02   Merger   or   Consolidation   of   the   Company   or   Master   Servicer;
        Assignment of Rights and Delegation of Duties by Master Servicer.

(a) (See Section 6.02(a) of the Standard Terms).

(b) (See Section 6.02(b) of the Standard Terms).

(c) (See Section 6.02(c) of the Standard Terms).

(d) The conversion of Residential   Funding   Corporation's or Residential Funding
Mortgage   Securities   I,   Inc.'s    organizational    structure   from   a   Delaware
corporation to a limited   liability company shall not require the consent of any
party or notice to any party   and   shall   not in any way   affect   the   rights or
obligations of Residential   Funding   Corporation or Residential Funding Mortgage
Securities I, Inc. hereunder.

(e) The Master