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POOLING AND SERVICING AGREEMENT

Pooling and Servicing Agreement

POOLING AND SERVICING AGREEMENT

 | Document Parties: FIRST HORIZON ASSET SECURITIES INC | FIRST HORIZON HOME LOAN CORPORATION | THE BANK OF NEW YORK You are currently viewing:
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FIRST HORIZON ASSET SECURITIES INC | FIRST HORIZON HOME LOAN CORPORATION | THE BANK OF NEW YORK

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Title: POOLING AND SERVICING AGREEMENT
Governing Law: New York     Date: 1/6/2006

POOLING AND SERVICING AGREEMENT

, Parties: first horizon asset securities inc , first horizon home loan corporation , the bank of new york
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                       FIRST HORIZON ASSET SECURITIES INC.

                                    Depositor

                       FIRST HORIZON HOME LOAN CORPORATION

                                 Master Servicer

                                       and

                              THE BANK OF NEW YORK,

                                     Trustee

              -----------------------------------------------------

                         POOLING AND SERVICING AGREEMENT

                           Dated as of December 1, 2005

              -----------------------------------------------------

          FIRST HORIZON ALTERNATIVE MORTGAGE SECURITIES TRUST 2005-AA12

              MORTGAGE PASS-THROUGH CERTIFICATES, SERIES 2005-AA12

<PAGE>

<TABLE>
<CAPTION>
<S>                                                                                                               <C>
ARTICLE I DEFINITIONS.............................................................................................5

ARTICLE II CONVEYANCE OF MORTGAGE LOANS;   REPRESENTATIONS AND WARRANTIES.........................................34
   SECTION 2.1 Conveyance of Mortgage Loans......................................................................34
   SECTION 2.2 Acceptance by Trustee of the Mortgage Loans.......................................................38
   SECTION 2.3 Representations and Warranties of the Master Servicer;   Covenants of the Seller...................40
   SECTION 2.4 Representations and Warranties of the Depositor as to the Mortgage Loans..........................43
   SECTION 2.5 Delivery of Opinion of Counsel in Connection with Substitutions...................................43
   SECTION 2.6 Execution and Delivery of Certificates............................................................44
   SECTION 2.7 REMIC Matters.....................................................................................44
   SECTION 2.8 Covenants of the Master Servicer..................................................................47

ARTICLE III ADMINISTRATION AND SERVICING OF MORTGAGE LOANS.......................................................47
   SECTION 3.1 Master Servicer to Service Mortgage Loans.........................................................47
   SECTION 3.2 Subservicing; Enforcement of the Obligations of Servicers.........................................48
   SECTION 3.3 Rights of the Depositor and the Trustee in Respect of the Master Servicer.........................49
   SECTION 3.4 Trustee to Act as Master Servicer.................................................................49
   SECTION 3.5 Collection of Mortgage Loan Payments; Certificate Account; Distribution Account...................50
   SECTION 3.6 Collection of Taxes, Assessments and Similar Items; Escrow Accounts...............................53
   SECTION 3.7 Access to Certain Documentation and Information Regarding the Mortgage Loans......................54
   SECTION 3.8 Permitted Withdrawals from the Certificate Account and Distribution Account.......................54
   SECTION 3.9 Maintenance of Hazard Insurance; Maintenance of Primary Insurance Policies........................56
   SECTION 3.10 Enforcement of Due-on-Sale Clauses; Assumption Agreements........................................57
   SECTION 3.11 Realization Upon Defaulted Mortgage Loans; Repurchase of Certain Mortgage Loans..................59
   SECTION 3.12 Trustee to Cooperate; Release of Mortgage Files..................................................61
   SECTION 3.13 Documents Records and Funds in Possession of Master Servicer to be Held for the Trustee..........62
   SECTION 3.14 Master Servicing Compensation....................................................................62
   SECTION 3.15 Access to Certain Documentation..................................................................63
   SECTION 3.16 Annual Statement as to Compliance................................................................63
   SECTION 3.17 Annual Independent Public Accountants'Servicing Statement; Financial Statements..................63
   SECTION 3.18 Errors and Omissions Insurance; Fidelity Bonds...................................................64
   SECTION 3.19 Notification of Adjustments......................................................................64

ARTICLE IV DISTRIBUTIONS AND ADVANCES BY THE MASTER SERVICER.....................................................65
   SECTION 4.1 Advances..........................................................................................65
</TABLE>
                                        i
<PAGE>

<TABLE>
<CAPTION>
<S>                                                                                                               <C>
   SECTION 4.2 Priorities of Distribution........................................................................65
   SECTION 4.3 Method of Distribution............................................................................70
   SECTION 4.4 Allocation of Losses..............................................................................71
   SECTION 4.5 [RESERVED]........................................................................................72
   SECTION 4.6 Monthly Statements to Certificateholders..........................................................72

ARTICLE V THE CERTIFICATES.......................................................................................74
   SECTION 5.1 The Certificates..................................................................................74
   SECTION 5.2 Certificate Register; Registration of Transfer and Exchange of Certificates.......................75
   SECTION 5.3 Mutilated, Destroyed, Lost or Stolen Certificates.................................................81
   SECTION 5.4 Persons Deemed Owners.............................................................................82
   SECTION 5.5 Access to List of Certificateholders'Names and Addresses..........................................82
   SECTION 5.6 Maintenance of Office or Agency...................................................................82

ARTICLE VI THE DEPOSITOR AND THE MASTER SERVICER.................................................................82
   SECTION 6.1 Respective Liabilities of the Depositor and the Master Servicer...................................82
   SECTION 6.2 Merger or Consolidation of the Depositor or the Master Servicer...................................83
   SECTION 6.3 Limitation on Liability of the Depositor, the Master Servicer and Others..........................83
   SECTION 6.4 Limitation on Resignation of Master Servicer......................................................84

ARTICLE VII DEFAULT..............................................................................................84
   SECTION 7.1 Events of Default.................................................................................84
   SECTION 7.2 Trustee to Act; Appointment of Successor..........................................................86
   SECTION 7.3 Notification to Certificateholders................................................................87

ARTICLE VIII CONCERNING THE TRUSTEE..............................................................................88
   SECTION 8.1 Duties of Trustee.................................................................................88
   SECTION 8.2 Certain Matters Affecting the Trustee.............................................................89
   SECTION 8.3 Trustee Not Liable for Certificates or Mortgage Loans.............................................91
   SECTION 8.4 Trustee May Own Certificates......................................................................91
   SECTION 8.5 Trustee's Fees and Expenses.......................................................................91
   SECTION 8.6 Eligibility Requirements for Trustee..............................................................92
   SECTION 8.7 Resignation and Removal of Trustee................................................................92
   SECTION 8.8 Successor Trustee.................................................................................93
   SECTION 8.9 Merger or Consolidation of Trustee................................................................94
   SECTION 8.10 Appointment of Co-Trustee or Separate Trustee....................................................94
   SECTION 8.11 Tax Matters......................................................................................95
   SECTION 8.12 Periodic Filings.................................................................................97

ARTICLE IX TERMINATION...........................................................................................97
   SECTION 9.1 Termination upon Liquidation or Purchase of all Mortgage Loans....................................97
   SECTION 9.2 Final Distribution on the Certificates............................................................98
   SECTION 9.3 Additional Termination Requirements...............................................................99

ARTICLE X [RESERVED]............................................................................................100

ARTICLE XI MISCELLANEOUS PROVISIONS.............................................................................100
   SECTION 11.1 Amendment.......................................................................................100
</TABLE>
                                       ii
<PAGE>

<TABLE>
<CAPTION>
<S>                                                                                                                <C>
   SECTION 11.2 Recordation of Agreement; Counterparts..........................................................101
   SECTION 11.3 Governing Law...................................................................................102
   SECTION 11.4 Intention of Parties............................................................................102
   SECTION 11.5 Notices.........................................................................................103
   SECTION 11.6 Severability of Provisions......................................................................104
   SECTION 11.7 Assignment......................................................................................104
   SECTION 11.8 Limitation on Rights of Certificateholders......................................................104
   SECTION 11.9 Inspection and Audit Rights.....................................................................105
   SECTION 11.10 Certificates Nonassessable and Fully Paid......................................................105
   SECTION 11.11 Limitations on Actions; No Proceedings.........................................................105
   SECTION 11.12 Acknowledgment of Seller.......................................................................106
</TABLE>

                                    SCHEDULES
<TABLE>
<CAPTION>

<S>                                                                                                               <C>
Schedule I:            Mortgage Loan Schedule                                                                  S-I-1
Schedule II:           Representations and Warranties of the Master Servicer                                  S-II-1
Schedule III:          Form of Monthly Master Servicer Report                                                S-III-1
</TABLE>

                                    EXHIBITS

<TABLE>
<CAPTION>
<S>                                                                                                                <C>
Exhibit A:             Form of Senior Certificate                                                                 A-1
Exhibit B:             Form of Subordinated Certificate                                                           B-1
Exhibit C:             Form of Residual Certificate                                                               C-1
Exhibit D:             Form of Reverse of Certificates                                                            D-1
Exhibit E:             Form of Initial Certification                                                               E-1
Exhibit F:             Form of Delay Delivery Certification                                                       F-1
Exhibit G:             Form of Subsequent Certification of Custodian                                               G-1
Exhibit H:             Transfer Affidavit                                                                         H-1
Exhibit I:             Form of Transferor Certificate                                                              I-1
Exhibit J:             Form of Investment Letter [Non-Rule 144A]                                                  J-1
Exhibit K:             Form of Rule 144A Letter                                                                   K-1
Exhibit L:              Request for Release (for Trustee)                                                          L-1
Exhibit M:             Request for Release (Mortgage Loan)                                                        M-1
</TABLE>
                                        iii
<PAGE>

         THIS POOLING AND SERVICING AGREEMENT, dated as of December 1, 2005,
among FIRST HORIZON ASSET SECURITIES INC., a Delaware corporation, as depositor
(the "Depositor"), FIRST HORIZON HOME LOAN CORPORATION, a Kansas corporation, as
master servicer (the "Master Servicer"), and THE BANK OF NEW YORK, a banking
corporation organized under the laws of the State of New York, as trustee (the
"Trustee").

                                 WITNESSETH THAT

         In consideration of the mutual agreements herein contained, the parties
hereto agree as follows:

                              PRELIMINARY STATEMENT

         The Depositor is the owner of the Trust Fund that is hereby conveyed to
the Trustee in return for the Certificates. The Trust Fund for federal income
tax purposes will consist of two separate REMICs. The Certificates will
represent the entire beneficial ownership interest in the Trust Fund. The
Regular Certificates will represent "regular interests" in the Upper REMIC. The
Class I-A-R Certificates will represent the residual interests in the Lower
REMIC and Upper REMIC, as described in Section 2.7. The "latest possible
maturity date" for federal income tax purposes of all REMIC regular interests
created hereby will be the Latest Possible Maturity Date.

         The following table sets forth characteristics of the Certificates,
together with the minimum denominations and integral multiples in excess thereof
in which such Classes shall be issuable (except that one Certificate of each
Class of Certificates may be issued in a different amount and, in addition, one
Residual Certificate representing the Tax Matters Person Certificate may be
issued in a different amount):

                  [Remainder of Page Intentionally Left Blank]


                                       1
<PAGE>

<TABLE>
<CAPTION>
------------------------- ----------------------- --------------------- ---------------------- ---------------------
                              Initial Class              Initial                                   Integral Multiples
   Class Designation        Certificate Balance      Pass Through Rate     Minimum Denomination     in Excess Minimum
------------------------- ----------------------- --------------------- ---------------------- ---------------------
<S>        <C>              <C>                          <C>                <C>                     <C>              
Class I-A-1                $      22,782,000.00          6.0280% (1)        $           25,000       $            1,000
------------------------- ----------------------- --------------------- ---------------------- ---------------------
Class I-A-2                $       1,672,000.00          6.0280% (1)        $           25,000       $            1,000
------------------------- ----------------------- --------------------- ---------------------- ---------------------
Class I-A-R                $             100.00          6.0280% (1)        $              100       $              N/A
------------------------- ----------------------- --------------------- ---------------------- ---------------------
Class II-A-1               $     213,133,000.00          6.0314% (2)        $           25,000       $            1,000
------------------------- ----------------------- --------------------- ---------------------- ---------------------
Class III-A-1              $      67,436,000.00          6.4079% (3)        $           25,000       $            1,000
------------------------- ----------------------- --------------------- ---------------------- ---------------------
Class III-A-2              $       4,950,000.00          6.4079% (3)        $           25,000       $            1,000
------------------------- ----------------------- --------------------- ---------------------- ---------------------
Class B-1                   $      11,319,000.00          6.1190% (4)        $          100,000       $            1,000
------------------------- ----------------------- --------------------- ---------------------- ---------------------
Class B-2                  $       6,199,000.00          6.1190% (4)        $          100,000       $            1,000
------------------------- ----------------------- --------------------- ---------------------- ---------------------
Class B-3                  $       4,852,000.00          6.1190% (4)         $          100,000       $            1,000
------------------------- ----------------------- --------------------- ---------------------- ---------------------
Class B-4                  $       2,484,000.00          6.1190% (4)        $          100,000       $            1,000
------------------------- ----------------------- --------------------- ---------------------- ---------------------
Class B-5                  $       1,822,000.00          6.1190% (4)        $          100,000       $            1,000
------------------------- ----------------------- --------------------- ---------------------- ---------------------
Class B-6                  $       1,324,764.87          6.1190% (4)        $          100,000       $            1,000
------------------------- ----------------------- --------------------- ---------------------- ---------------------
</TABLE>

(1) The Pass-Through Rates for the Class I-A-1, Class I-A-2 and Class I-A-R
Certificates for each subsequent Distribution Date will equal the Weighted
Average Adjusted Net Mortgage Rate for Pool I, as of the first day of the month
immediately prior to the month in which the relevant Distribution Date occurs,
after taking into account scheduled payments of principal on that date and any
Principal Prepayments received on or after such date and distributed to
Certificateholders on the prior Distribution Date.

(2) The Pass-Through Rates for the Class II-A-1 Certificates for each subsequent
Distribution Date will equal the Weighted Average Adjusted Net Mortgage Rate for
Pool II, as of the first day of the month immediately prior to the month in
which the relevant Distribution Date occurs, after taking into account scheduled
payments of principal on that date and any Principal Prepayments received on or
after such date and distributed to Certificateholders on the prior Distribution
Date.

(3) The Pass-Through Rate for the Class III-A-1 and Class III-A-2 Certificates
for each subsequent Distribution Date will equal the Weighted Average Adjusted
Net Mortgage Rate for Pool III, as of the first day of the month immediately
prior to the month in which the relevant Distribution Date occurs, after taking
into account scheduled payments of principal on that date and any Principal
Prepayments received on or after such date and distributed to Certificateholders
on the prior Distribution Date.

(4) The Pass-Through Rates for the Subordinated Certificates for each subsequent
Distribution Date will equal the weighted average of the Weighted Average
Adjusted Net Mortgage Rates for each Mortgage Pool, weighted on the basis of the
Group Subordinate Amount for each Mortgage Pool, as of the first day of the
month immediately prior to the month in which the relevant Distribution Date
occurs, after taking into account scheduled payments of principal on that date
and any Principal Prepayments received on or after such date and distributed to
Certificateholders on the prior Distribution Date.

                                       2
<PAGE>

<TABLE>
<CAPTION>
<S>                                          <C>
Accretion Directed Certificates.......      None.
Accrual Certificates..................      None.
Accrual Components....................      None.
Book-Entry Certificates...............      All Classes of Certificates other than the Physical Certificates.
Certificate Group.....................      With respect to Pool I, the Group I Senior Certificates; with respect to
                                           Pool II, the Group II Senior
                                           Certificates; and with respect to
                                           Pool III, the Group III Senior
                                           Certificates. The Subordinated
                                           Certificates correspond to each
                                            Mortgage Pool.
COFI Certificates.....................      None.
Component Certificates................      None.
Components............................      None.
Delay Certificates....................      All interest-bearing Classes of Certificates other than the Non-Delay
                                           Certificates, if any.
ERISA-Restricted                            Certificates......... The Residual
                                           Certificates, Private Certificates
                                           and Certificates of any Class that no
                                           longer satisfy the applicable rating
                                           requirement of the Underwriters'
                                            Exemption.
Floating Rate Certificates............      None.
Group I Senior Certificates...........      The Class I-A-1, Class I-A-2 and Class I-A-R Certificates.
Group II Senior Certificates..........      The Class II-A-1 Certificates.
Group III Senior Certificates.....            The Class III-A-1 and Class III-A-2 Certificates.
Insured Retail Certificates...........      None.
Inverse Floating Rate Certificates....
                                           None.
LIBOR Certificates....................      None.
Non-Delay Certificates................      None.
Notional Amount Components............      None.
Notional Amount Certificates..........      None.
Offered Certificates..................      All Classes of the Certificates other than the Private Certificates.
Physical Certificates.................      The Residual Certificates and the Private Certificates.
Planned Principal Classes.............      None.
Principal Only Certificates...........      None.
Private Certificates..................      The Class B-4, Class B-5 and Class B-6 Certificates.
Rating Agencies.......................      S&P and Moody's; except that, for the purposes of the Class B-1, Class
                                           B-2, Class B-3, Class B-4 and Class
                                           B-5 Certificates, S&P shall be the
                                           sole Rating Agency. The Class B-6
                                           Certificates will not be rated.
Regular Certificates..................      All Classes of Certificates, other than the Residual Certificates.
</TABLE>

                                       3
<PAGE>

<TABLE>
<CAPTION>
<S>                                         <C>
Residual Certificates.................      The Class I-A-R Certificates.
Scheduled Principal Classes...........      None.
Senior Certificates...................      The Group I Senior Certificates, the Group II Senior Certificates and the
                                           Group III Senior Certificates, collectively.
Senior Mezzanine Certificates.........      The Class I-A-2 and Class III-A-2 Certificates.
Subordinated Certificates.............      The Class B-1, Class B-2, Class B-3, Class B-4, Class B-5 and Class B-6
                                            Certificates.
Super Senior Certificates.............      The Class I-A-1 and Class III-A-1 Certificates.
Support Classes.......................      None.
Targeted Principal Classes............      None.
Underwriter...........................      Bear, Stearns & Co. Inc.
</TABLE>

         With respect to any of the foregoing designations as to which the
corresponding reference is "None," all defined terms and provisions herein
relating solely to such designations shall be of no force or effect, and any
calculations herein incorporating references to such designations shall be
interpreted without reference to such designations and amounts. Defined terms
and provisions herein relating to statistical rating agencies not designated
above as Rating Agencies shall be of no force or effect.

                                       4
<PAGE>

                                    ARTICLE I
                                   DEFINITIONS

         Whenever used in this Agreement, the following words and phrases,
unless the context otherwise requires, shall have the following meanings:

         Accrued Certificate Interest: For any Class of Certificates for any
Distribution Date, the interest accrued during the related Interest Accrual
Period at the applicable Pass-Through Rate on the Class Certificate Balance of
such Class of Certificates immediately prior to such Distribution Date, less
such Class' share of any Net Interest Shortfall, allocable among the outstanding
Classes of Senior Certificates of the related Certificate Group based on the
Accrued Certificate Interest otherwise distributable thereto, and allocable to
the Subordinated Certificates based on interest accrued on their related
Apportioned Principal Balances.

         Adjusted Mortgage Rate: As to each Mortgage Loan, and at any time, the
per annum rate equal to the Mortgage Rate less the Master Servicing Fee Rate.

         Adjusted Net Mortgage Rate: As to each Mortgage Loan, and at any time,
the per annum rate equal to the Mortgage Rate less the related Expense Fee Rate.

         Adjustment Date: A date specified in each Mortgage Note as a date on
which the Mortgage Rate on the related Mortgage Loan will be adjusted.

         Advance: The payment required to be made by the Master Servicer with
respect to any Distribution Date pursuant to Section 4.1, the amount of any such
payment being equal to the aggregate of payments of principal and interest (net
of the Master Servicing Fee and net of any net income in the case of any REO
Property) on the Mortgage Loans that were due on the related Due Date and not
received as of the close of business on the related Determination Date, less the
aggregate amount of any such delinquent payments that the Master Servicer has
determined would constitute a Nonrecoverable Advance if advanced.

         Aggregate Senior Percentage: For any Distribution Date, the percentage
equal to (x) the sum of the Class Certificate Balances of the Senior
Certificates of both Certificate Groups, divided by (y) the aggregate Pool
Principal Balance for both Mortgage Pools on such Distribution Date, in each
case prior to giving effect to any distributions on such Distribution Date.

         Aggregate Subordinated Percentage: For any Distribution Date, the
percentage equal to (x) the sum of the Class Certificate Balances of the
Subordinated Certificates on such Distribution Date, divided by (y) the
aggregate Pool Principal Balance for both Mortgage Pools on such Distribution
Date, in each case prior to giving effect to any distributions on such
Distribution Date.

         Agreement: This Pooling and Servicing Agreement and all amendments or
supplements hereto.

                                       5
<PAGE>

         Allocable Share: With respect to any Class of Subordinated Certificates
on any Distribution Date, such Class' pro rata share (based on the Class
Certificate Balance of each Class entitled thereto) of the Subordinated Optimal
Principal Amount for each Mortgage Pool; provided, that, except as provided in
this Agreement, no Subordinated Certificates (other than the Class of
Subordinated Certificates with the highest priority of distribution) shall be
entitled on any Distribution Date to receive distributions pursuant to clauses
(2), (3) and (5) of the definition of Subordinated Optimal Principal Amount
unless the Class Prepayment Distribution Trigger for such Class is satisfied for
such Distribution Date.

         Alternative Title Product: Any one of the following: (i) Lien
Protection Insurance issued by Integrated Loan Services or ATM Corporation of
America, (ii) a Mortgage Lien Report issued by EPN Solutions/ACRAnet, (iii) a
Property Plus Report issued by Rapid Refinance Service through
SharperLending.com, or (iv) such other alternative title insurance product that
the Seller utilizes in connection with its then current underwriting criteria.

         Amount Held for Future Distribution: As to any Distribution Date, the
aggregate amount held in the applicable subaccount of the Certificate Account at
the close of business on the related Determination Date on account of (i)
Principal Prepayments on the related Mortgage Pool received after the related
Prepayment Period and Liquidation Proceeds in the related Mortgage Pool received
in the month of such Distribution Date and (ii) all Scheduled Payments in the
related Mortgage Pool due after the related Due Date.

         Apportioned Principal Balance: For any Class of Subordinated
Certificates and any Distribution Date, an amount equal to the Class Certificate
Balance of such Class immediately prior to that Distribution Date multiplied by
a fraction, the numerator of which is the applicable Group Subordinate Amount
for such Distribution Date and the denominator of which is the sum of the Group
Subordinate Amounts for such Distribution Date.

         Appraised Value: With respect to any Mortgage Loan, the Appraised Value
of the related Mortgaged Property shall be: (i) with respect to a Mortgage Loan
other than a Refinancing Mortgage Loan, the lesser of (a) the value of the
Mortgaged Property based upon the appraisal made at the time of the origination
of such Mortgage Loan and (b) the sales price of the Mortgaged Property at the
time of the origination of such Mortgage Loan; (ii) with respect to a
Refinancing Mortgage Loan other than a Streamlined Documentation Mortgage Loan,
the value of the Mortgaged Property based upon the appraisal made at the time of
the origination of such Refinancing Mortgage Loan; and (iii) with respect to a
Streamlined Documentation Mortgage Loan, (a) if the loan-to-value ratio with
respect to the Original Mortgage Loan at the time of the origination thereof was
90% or less, the value of the Mortgaged Property based upon the appraisal made
at the time of the origination of the Original Mortgage Loan and (b) if the
loan-to-value ratio with respect to the Original Mortgage Loan at the time of
the origination thereof was greater than 90%, the value of the Mortgaged
Property based upon the appraisal (which may be a drive-by appraisal) made at
the time of the origination of such Streamlined Documentation Mortgage Loan.

         Available Funds: For each Mortgage Pool, with respect to any
Distribution Date, an amount equal to the sum of:

      o      all scheduled installments of interest, net of the Master Servicing
            Fee and the Trustee Fee, and all scheduled installments of principal
            due in respect of the Mortgage Loans in such Mortgage Pool on the
            Due Date in the month in which the Distribution Date occurs and
             received before the related Determination Date, together with any
            Advances in respect thereof;

                                       6
<PAGE>

      o      all Insurance Proceeds, Liquidation Proceeds and Unanticipated
            Recoveries received in respect of the Mortgage Loans in such
            Mortgage Pool during the calendar month before the Distribution
            Date, which in each case is net of unreimbursed expenses incurred in
            connection with a liquidation or foreclosure and unreimbursed
            Advances, if any;

      o      all Principal Prepayments received in respect of the Mortgage Loans
            in such Mortgage Pool during the related Prepayment Period, plus
            interest received thereon, net of any Prepayment Interest Excess;

      o      any Compensating Interest in respect of Principal Prepayments in
            Full received in respect of the Mortgage Loans in such Mortgage Pool
            during the related Prepayment Period (or, in the case of the first
            Distribution Date, from the Cut-off Date); and

      o      any Substitution Adjustment Amount or the Purchase Price for any
            Deleted Mortgage Loan in the related Mortgage Pool or a Mortgage
            Loan in the related Mortgage Pool repurchased by the Seller or the
            Master Servicer as of such Distribution Date, reduced by amounts in
            reimbursement for Advances previously made and other amounts that
            the Master Servicer is entitled to be reimbursed for out of the
            Certificate Account pursuant to this Agreement.

         Bankruptcy Code: The United States Bankruptcy Reform Act of 1978, as
amended.

         Bankruptcy Coverage Termination Date: The date on which the Bankruptcy
Loss Coverage Amount is reduced to zero.

         Bankruptcy Loss: With respect to any Mortgage Loan, a Deficient
Valuation or Debt Service Reduction; provided, however, that a Bankruptcy Loss
shall not be deemed a Bankruptcy Loss hereunder so long as the Master Servicer
has notified the Trustee in writing that the Master Servicer is diligently
pursuing any remedies that may exist in connection with the related Mortgage
Loan and either (A) the related Mortgage Loan is not in default with regard to
payments due thereunder or (B) delinquent payments of principal and interest
under the related Mortgage Loan and any related escrow payments in respect of
such Mortgage Loan are being advanced on a current basis by the Master Servicer,
in either case without giving effect to any Debt Service Reduction or Deficient
Valuation.

         Bankruptcy Loss Coverage Amount: As of any Determination Date, the
Bankruptcy Loss Coverage Amount shall equal the Initial Bankruptcy Coverage
Amount as reduced by (i) the aggregate amount of Bankruptcy Losses allocated to
the Certificates since the Cut-off Date and (ii) any permissible reductions in
the Bankruptcy Loss Coverage Amount as evidenced by a letter of each Rating
Agency to the Trustee to the effect that any such reduction will not result in a
downgrading of the then current ratings assigned to the Classes of Certificates
rated by it. As of any Distribution Date on or after the Cross-over Date, the
Bankruptcy Loss Coverage Amount will be zero.

                                        7
<PAGE>

         Blanket Mortgage: The mortgage or mortgages encumbering the Cooperative
Property.

         Book-Entry Certificates:   As specified in the Preliminary Statement.

         Business Day: Any day other than (i) a Saturday or a Sunday, or (ii) a
day on which banking institutions in the City of Dallas, or the State of Texas
or the city in which the Corporate Trust Office of the Trustee is located are
authorized or obligated by law or executive order to be closed.

          Certificate: Any one of the Certificates executed by the Trustee in
substantially the forms attached hereto as exhibits.

         Certificate Account: The separate Eligible Account or Accounts created
and maintained by the Master Servicer pursuant to Section 3.5 with a depository
institution in the name of the Trustee for the benefit of the Trustee on behalf
of Certificateholders and designated "First Horizon Home Loan Corporation in
trust for the registered holders of First Horizon Asset Securities Inc. Mortgage
Pass-Through Certificates, Series 2005-AA12."

         Certificate Group:   As specified in the Preliminary Statement.

         Certificate Owner: With respect to a Book-Entry Certificate, the Person
who is the beneficial owner of such Book-Entry Certificate.

         Certificate Principal Balance: With respect to any Certificate and as
of any Distribution Date, the Certificate Principal Balance on the date of the
initial issuance of such Certificate, as reduced by:

      (a)    all amounts distributed on previous Distribution Dates on such
            Certificate on account of principal,

      (b)    the principal portion of all Realized Losses previously allocated to
            such Certificate, and

      (c)    in the case of a Subordinated Certificate, such Certificate's pro
            rata share, if any, of the Subordinated Certificate Writedown Amount
            for previous Distribution Dates.

         Certificate Register: The register maintained pursuant to Section 5.2
hereof.

          Certificateholder or Holder: The person in whose name a Certificate is
registered in the Certificate Register, except that, solely for the purpose of
giving any consent pursuant to this Agreement, any Certificate registered in the
name of the Depositor or the Seller or any affiliate or agent of the Depositor
or the Seller shall be deemed not to be Outstanding and the Percentage Interest
evidenced thereby shall not be taken into account in determining whether the
requisite amount of Percentage Interests necessary to effect such consent has
been obtained; provided, however, that if any such Person (including the
Depositor) owns 100% of the Percentage Interests evidenced by a Class of
Certificates, such Certificates shall be deemed to be Outstanding for purposes
of any provision hereof that requires the consent of the Holders of Certificates
of a particular Class as a condition to the taking of any action hereunder. The
Trustee is entitled to rely conclusively on a certification of the Depositor or
any affiliate of the Depositor in determining which Certificates are registered
in the name of an affiliate of the Depositor.

                                       8
<PAGE>

         Class: All Certificates bearing the same class designation as set forth
in the Preliminary Statement.

         Class Certificate Balance: With respect to any Class of Certificates
and as of any Distribution Date the aggregate of the Certificate Principal
Balances of all Certificates of such Class as of such date, plus the amount of
any Unanticipated Recoveries added to the Class Certificate Balance of such
Class of Certificate pursuant to Section 4.2(h).

         Class Prepayment Distribution Trigger: For a Class of Subordinated
Certificates (other than the Class of Subordinated Certificates with the highest
priority of distribution), a trigger that is satisfied on any Distribution Date
on which a fraction (expressed as a percentage), the numerator of which is the
aggregate Class Certificate Balance of such Class and each Class subordinate
thereto, if any, and the denominator of which is the aggregate Pool Principal
Balance for all the Mortgage Pools with respect to such Distribution Date,
equals or exceeds such percentage calculated as of the Closing Date.

         Closing Date:   December 29, 2005.

         Code: The Internal Revenue Code of 1986, including any successor or
amendatory provisions.

         COFI:   Not applicable.

         COFI Certificates:   Not applicable.

         Compensating Interest: As to any Distribution Date and any Principal
Prepayment in respect of a Mortgage Loan that is received during the period from
the sixteenth day of the month (or, in the case of the first Distribution Date,
from the Cut-off Date) prior to the month of such Distribution Date through the
last day of such month, an additional payment to the related Mortgage Pool made
by the Master Servicer, to the extent funds are available from the Master
Servicing Fee, equal to the amount of interest at the Adjusted Net Mortgage Rate
for that Mortgage Loan from the date of the prepayment to the related Due Date;
provided that the aggregate of all such payments as to the Mortgage Loans in a
Mortgage Pool shall not exceed 0.0083% of the Pool Principal Balance of such
Mortgage Pool as of the related Determination Date, and provided further that if
a partial Principal Prepayment is applied on or after the first day of the month
following the month of receipt, no additional payment is required for such
Principal Prepayment.

         Component:   Not applicable.

         Component Balance:   Not applicable.

                                       9
<PAGE>

         Component Certificates:   Not applicable.

         Cooperative Corporation: The entity that holds title (fee or an
acceptable leasehold estate) to the real property and improvements constituting
the Cooperative Property and which governs the Cooperative Property, which
Cooperative Corporation must qualify as a Cooperative Housing Corporation under
Section 216 of the Code.

         Coop Shares:   Shares issued by a Cooperative Corporation.

         Cooperative Loan: Any Mortgage Loan secured by Coop Shares and a
Proprietary Lease.

         Cooperative Property: The real property and improvements owned by the
Cooperative Corporation, including the allocation of individual dwelling units
to the holders of the Coop Shares of the Cooperative Corporation.

         Cooperative Unit: A single family dwelling located in a Cooperative
Property.

         Corporate Trust Office: The designated office of the Trustee in the
State of New York 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 The Bank of New York, 101
Barclay Street, 8W, New York, New York 10286 (Attn: Corporate Trust
Mortgage-Backed Securities Group, First Horizon Asset Securities Inc. Series
2005-AA12), facsimile no. (212) 815-3986, and which is the address to which
notices to and correspondence with the Trustee should be directed.

         Corresponding Classes: As to any Lower REMIC Interest identified in
Section 2.7, the Class or Classes that are identified in Section 2.7 as
corresponding to such Lower REMIC Interest.

         Cross-over Date: The Distribution Date on which the respective Class
Certificate Balances of each Class of Subordinated Certificates have been
reduced to zero.

         Custodial Agreement: The Custodial Agreement dated as of December 29,
2005 by and among the Trustee, the Master Servicer and the Custodian.

         Custodian: First Tennessee Bank National Association, a national
banking association, and its successors and assigns, as custodian under the
Custodial Agreement.

         Cut-off Date:   December 1, 2005.

         Cut-off Date Pool Principal Balance: With respect to Pool I,
$26,126,394.93; with respect to Pool II, $227,705,694.14; and with respect to
Pool III, $77,335,775.80.

         Cut-off Date Principal Balance: As to any Mortgage Loan, the Stated
Principal Balance thereof as of the close of business on the Cut-off Date.

         Debt Service Reduction: With respect to any Mortgage Loan, a reduction
by a court of competent jurisdiction in a proceeding under the Bankruptcy Code
in the Scheduled Payment for such Mortgage Loan which became final and
non-appealable, except such a reduction resulting from a Deficient Valuation or
any reduction that results in a permanent forgiveness of principal.

                                       10
<PAGE>

         Defective Mortgage Loan: Any Mortgage Loan which is required to be
repurchased pursuant to Section 2.2 or 2.3.

         Deficient Valuation: With respect to any Mortgage Loan, a valuation by
a court of competent jurisdiction of the Mortgaged Property in an amount less
than the then-outstanding indebtedness under the Mortgage Loan, or any reduction
in the amount of principal to be paid in connection with any Scheduled Payment
that results in a permanent forgiveness of principal, which valuation or
reduction results from an order of such court which is final and non-appealable
in a proceeding under the Bankruptcy Code.

         Definitive Certificates: Any Certificate evidenced by a Physical
Certificate and any Certificate issued in lieu of a Book-Entry Certificate
pursuant to Section 5.2(e).

         Delay Certificates:   As specified in the Preliminary Statement.

         Delay Delivery Mortgage Loans: The Mortgage Loans for which all or a
portion of a related Mortgage File is not delivered to Trustee on the Closing
Date. The number of Delay Delivery Mortgage Loans shall not exceed 25% of the
aggregate number of Mortgage Loans as of the Closing Date.

         Deleted Mortgage Loan:   As defined in Section 2.3(b) hereof.

         Denomination: With respect to each Certificate, the amount set forth on
the face thereof as the "Initial Certificate Balance of this Certificate" or the
Percentage Interest appearing on the face thereof.

         Depositor: First Horizon Asset Securities Inc., a Delaware corporation,
or its successor in interest.

         Depository: The initial Depository shall be The Depository Trust
Company, the nominee of which is CEDE & Co., as the registered Holder of the
Book-Entry Certificates. The Depository shall at all times be a "clearing
corporation" as defined in Section 8-102(a)(5) of the Uniform Commercial Code of
the State of New York.

         Depository Participant: A broker, dealer, bank or other financial
institution or other Person for whom from time to time a Depository effects
book-entry transfers and pledges of securities deposited with the Depository.

         Determination Date: As to any Distribution Date, the earlier of (i) the
third Business Day after the 15th day of each month, and (ii) the second
Business Day prior to the related Distribution Date.

         Distribution Account: The separate Eligible Account created and
maintained by the Trustee pursuant to Section 3.5 in the name of the Trustee for
the benefit of the Certificateholders and designated "The Bank of New York, in
trust for registered Holders of First Horizon Asset Securities Inc. Mortgage
Pass-Through Certificates, Series 2005-AA12." Funds in the Distribution Account
shall be held in trust for the Certificateholders for the uses and purposes set
forth in this Agreement.

                                        11
<PAGE>

         Distribution Account Deposit Date: As to any Distribution Date, 1:30
p.m. Central time on the Business Day immediately preceding such Distribution
Date.

         Distribution Date: The 25th day of each calendar month after the
initial issuance of the Certificates, or if such 25th day is not a Business Day,
the next succeeding Business Day, commencing in January 2006.

         Due Date: With respect to any Distribution Date, the first day of the
month in which the related Distribution Date occurs.

         Eligible Account: Any of (i) an account or accounts maintained with a
federal or state chartered depository institution or trust company the
short-term unsecured debt obligations of which (or, in the case of a depository
institution or trust company that is the principal subsidiary of a holding
company, the debt obligations of such holding company) have the highest
short-term ratings of each Rating Agency at the time any amounts are held on
deposit therein, or (ii) an account or accounts in a depository institution or
trust company in which such accounts are insured by the FDIC or the SAIF (to the
limits established by the FDIC or the SAIF, as applicable) and the uninsured
deposits in which accounts are otherwise secured such that, as evidenced by an
Opinion of Counsel delivered to the Trustee and to each Rating Agency, the
Certificateholders have a claim with respect to the funds in such account or a
perfected first priority security interest against any collateral (which shall
be limited to Permitted Investments) securing such funds that is superior to
claims of any other depositors or creditors of the depository institution or
trust company in which such account is maintained, or (iii) a trust account or
accounts maintained with (a) the trust department of a federal or state
chartered depository institution or (b) a trust company, acting in its fiduciary
capacity or (iv) any other account acceptable to each Rating Agency. Eligible
Accounts may bear interest, and may include, if otherwise qualified under this
definition, accounts maintained with the Trustee.

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

         ERISA-Qualifying Underwriting: With respect to any ERISA-Restricted
Certificate, a best efforts or firm commitment underwriting or private placement
that meets the requirements of the Underwriters' Exemption.

         ERISA-Restricted Certificate: As specified in the Preliminary
Statement.

         Escrow Account: The Eligible Account or Accounts established and
maintained pursuant to Section 3.6(a) hereof.

         Event of Default:   As defined in Section 7.1 hereof.

         Excess Loss: The amount of any (i) Fraud Loss realized after the Fraud
Loss Coverage Termination Date, (ii) Special Hazard Loss realized after the
Special Hazard Coverage Termination Date or (iii) Deficient Valuation realized
after the Bankruptcy Coverage Termination Date.

                                       12
<PAGE>

         Excess Proceeds: With respect to any Liquidated Mortgage Loan, the
amount, if any, by which the sum of any Liquidation Proceeds, Insurance Proceeds
and/or Unanticipated Recoveries in respect of such Mortgage Loan received in the
calendar month in which such Mortgage Loan became a Liquidated Mortgage Loan,
net of any amounts previously reimbursed to the Master Servicer as
Nonrecoverable Advance(s) with respect to such Mortgage Loan pursuant to Section
3.8(a)(iii), exceeds (i) the unpaid principal balance of such Liquidated
Mortgage Loan as of the Due Date in the month in which such Mortgage Loan became
a Liquidated Mortgage Loan plus (ii) accrued interest at the Mortgage Rate from
the Due Date as to which interest was last paid or advanced (and not reimbursed)
to Certificateholders up to the Due Date applicable to the Distribution Date
immediately following the calendar month during which such liquidation occurred.

         Expense Fee Rate: As to each Mortgage Loan, the sum of the related
Master Servicing Fee Rate and the Trustee Fee Rate.

         FDIC: The Federal Deposit Insurance Corporation, or any successor
thereto.

         FHLMC: The Federal Home Loan Mortgage Corporation, a corporate
instrumentality of the United States created and existing under Title III of the
Emergency Home Finance Act of 1970, as amended, or any successor thereto.

         FIRREA: The Financial Institutions Reform, Recovery, and Enforcement
Act of 1989.

         First Horizon: First Horizon Home Loan Corporation, a Kansas
corporation and an indirect wholly owned subsidiary of First Horizon National
Corporation, a Tennessee corporation.

         Fitch: Fitch Ratings and its successors and/or assigns. If Fitch is
designated as a Rating Agency in the Preliminary Statement, for purposes of
Section 11.5(b) the address for notices to Fitch shall be Fitch, Inc., One State
Street Plaza, New York, New York 10004, Attention: Residential Mortgage
Surveillance Group, or such other address as Fitch may hereafter furnish to the
Depositor and the Master Servicer.

         FNMA: The Federal National Mortgage Association, a federally chartered
and privately owned corporation organized and existing under the Federal
National Mortgage Association Charter Act, or any successor thereto.

         Fraud Loan: A Liquidated Mortgage Loan as to which a Fraud Loss has
occurred.

         Fraud Loss Coverage Amount: As of the Closing Date, $6,623,357. As of
any Distribution Date from the first anniversary of the Cut-off Date and prior
to the fifth anniversary of the Cut-off Date, the Fraud Loss Coverage Amount
shall equal $3,311,678 minus the aggregate amount of Fraud Losses that would
have been allocated to the Subordinated Certificates in the absence of the Loss
Allocation Limitation since the Cut-off Date. As of any Distribution Date on or
after the earlier of the Cross-over Date or the fifth anniversary of the Cut-off
Date, the Fraud Loss Coverage Amount shall be zero.

                                       13
<PAGE>

         Fraud Loss Coverage Termination Date: The date on which the Fraud Loss
Coverage Amount is reduced to zero.

         Fraud Losses: Realized Losses on Mortgage Loans as to which a loss is
sustained by reason of a default arising from fraud, dishonesty or
misrepresentation in connection with the related Mortgage Loan, including a loss
by reason of the denial of coverage under any related Primary Insurance Policy
because of such fraud, dishonesty or misrepresentation.

         Group I Senior Certificates: As specified in the Preliminary Statement.

         Group II Senior Certificates: As specified in the Preliminary
Statement.

         Group III Senior Certificates: As specified in the Preliminary
Statement

         Group Subordinate Amount: For a Mortgage Pool and any Distribution
Date; the excess of (a) the Pool Principal Balance of such Mortgage Pool for the
immediately preceding Distribution Date, over (b) the aggregate Class
Certificate Balance of the Senior Certificates of the related Certificate Group
immediately prior to that Distribution Date.

         Index:   Not applicable.

         Indirect Participant: A broker, dealer, bank or other financial
institution or other Person that clears through or maintains a custodial
relationship with a Depository Participant.

          Initial Bankruptcy Coverage Amount:   $150,000.

         Initial Component Balance:   Not applicable.

         Insurance Policy: With respect to any Mortgage Loan included in the
Trust Fund, any insurance policy, including all riders and endorsements thereto
in effect, including any replacement policy or policies for any Insurance
Policies.

         Insurance Proceeds: Proceeds paid by an insurer pursuant to any
Insurance Policy, in each case other than any amount included in such Insurance
Proceeds in respect of Insured Expenses.

         Insured Expenses: Expenses covered by an Insurance Policy or any other
insurance policy with respect to the Mortgage Loans.

         Insured Retail Certificates:   Not applicable.

         Interest Accrual Period: With respect to each Class of Delay
Certificates and any Distribution Date, the calendar month prior to the month of
such Distribution Date. With respect to any Non-Delay Certificates and any
Distribution Date, the one month period commencing 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.

                                       14
<PAGE>

         Interest Determination Date:   Not applicable.

         Latest Possible Maturity Date: As to each Class of Subordinated
Certificates, each Class of Senior Certificates and each Lower REMIC Interest,
the Distribution Date following the third anniversary of the scheduled maturity
date of the Mortgage Loan having the latest scheduled maturity date as of the
Cut-off Date.

         Lender PMI Mortgage Loan:   Not applicable.

         LIBOR:   Not applicable.

         LIBOR Certificates:   Not applicable.

         Liquidated Mortgage Loan: With respect to any Distribution Date, a
defaulted Mortgage Loan (including any REO Property) which was liquidated in the
calendar month preceding the month of such Distribution Date and as to which the
Master Servicer has determined (in accordance with this Agreement) that it has
received all amounts it expects to receive in connection with the liquidation of
such Mortgage Loan, including the final disposition of an REO Property.

         Liquidation Proceeds: All cash amounts, other than Insurance Proceeds
and Unanticipated Recoveries, received in connection with the partial or
complete liquidation of defaulted Mortgage Loans, whether through trustee's
sale, foreclosure sale or otherwise or amounts received in connection with any
condemnation or partial release of a Mortgaged Property and any other proceeds
received in connection with an REO Property, less the sum of related
unreimbursed Master Servicing Fees, Servicing Advances and Advances.

         Loan-to-Value Ratio: With respect to any Mortgage Loan and as to any
date of determination, the fraction (expressed as a percentage) the numerator of
which is the principal balance of the related Mortgage Loan at such date of
determination and the denominator of which is the Appraised Value of the related
Mortgaged Property.

         Loss Allocation Limitation:   As defined in Section 4.4(g).

         Lost Mortgage Note: Any Mortgage Note the original of which was
permanently lost or destroyed and has not been replaced.

         Lower REMIC: The segregated pool of assets consisting of the Trust Fund
but excluding the Lower REMIC Interests, the RL Interest and the RU Interest.

         Lower REMIC Interests: The REMIC regular interests, within the meaning
of the REMIC Provisions, issued by the Lower REMIC as set forth in Section 2.7.

         Maintenance: With respect to any Cooperative Unit, the rent paid by the
Mortgagor to the Cooperative Corporation pursuant to the Proprietary Lease.

                                       15
<PAGE>

         Majority in Interest: As to any Class of Regular Certificates, the
Holders of Certificates of such Class evidencing, in the aggregate, at least 51%
of the Percentage Interests evidenced by all Certificates of such Class.

         Master Servicer: First Horizon Home Loan Corporation, a Kansas
corporation, and its successors and assigns, in its capacity as master servicer
hereunder.

         Master Servicer Advance Date: As to any Distribution Date, 1:30 p.m.
Central time on the Business Day immediately preceding such Distribution Date.

         Master Servicing Fee: As to each Mortgage Loan and any Distribution
Date, an amount payable out of each full payment of interest received on such
Mortgage Loan and equal to one-twelfth of the Master Servicing Fee Rate
multiplied by the Stated Principal Balance of such Mortgage Loan as of the Due
Date in the month of such Distribution Date (prior to giving effect to any
Scheduled Payments due on such Mortgage Loan on such Due Date), subject to
reduction as provided in Section 3.14.

         Master Servicing Fee Rate: A per annum rate equal to 0.369%.

         MERS: Mortgage Electronic Registration Systems, Inc., a corporation
organized and existing under the laws of the State of Delaware, or any successor
thereto.

         MERS Mortgage Loan: Any Mortgage Loan registered with MERS on the MERS
System.

         MERS(R) System: The system of recording transfers of mortgages
electronically maintained by MERS.

         MIN: The Mortgage Identification Number for any MERS Mortgage Loan.

         MLPA: The Mortgage Loan Purchase Agreement dated as of December 29,
2005, by and between First Horizon Home Loan Corporation, as seller, and First
Horizon Asset Securities Inc., as purchaser, as related to the transfer, sale
and conveyance of the Mortgage Loans.

         MOM Loan: Any Mortgage Loan as to which MERS is acting as mortgagee,
solely as nominee for the originator of such Mortgage Loan and its successors
and assigns.

         Monthly Statement: The statement delivered to the Certificateholders
pursuant to Section 4.6.

         Moody's: Moody's Investors Service, Inc., and its successors and/or
assigns. If Moody's is designated as a Rating Agency in the Preliminary
Statement, for purposes of Section 11.5(b) the address for notices to Moody's
shall be Moody's Investors Service, Inc., 99 Church Street, New York, New York
10007, Attention: Residential Pass-Through Monitoring, or such other address as
Moody's may hereafter furnish to the Depositor or the Master Servicer.

         Mortgage: The mortgage, deed of trust or other instrument creating a
first lien on an estate in fee simple or leasehold interest in real property
securing a Mortgage Note.

                                       16
<PAGE>

         Mortgage File: The mortgage documents listed in Section 2.1(b) hereof
pertaining to a particular Mortgage Loan and any additional documents delivered
to the Trustee to be added to the Mortgage File pursuant to this Agreement.

         Mortgage Loan Schedule: The list of Mortgage Loans (as from time to
time amended by the Master Servicer to reflect the addition of Substitute
Mortgage Loans and the deletion of Deleted Mortgage Loans pursuant to the
provisions of this Agreement) transferred to the Trustee as part of the Trust
Fund and from time to time subject to this Agreement, attached hereto as
Schedule I, setting forth the following information with respect to each
Mortgage Loan:

            (1)    the loan number;

            (2)    the Mortgagor's name and the street address of the Mortgaged
                   Property, including the zip code;

            (3)    the maturity date;

            (4)    the original principal balance;

            (5)    the Cut-off Date Principal Balance;

            (6)    the first payment date of the Mortgage Loan;

            (7)    the Scheduled Payment in effect as of the Cut-off Date;

            (8)    the Loan-to-Value Ratio at origination;

            (9)    a code indicating whether the residential dwelling at the time
                  of origination was represented to be owner-occupied;

            (10)   a code indicating whether the residential dwelling is either
                  (a) a detached single family dwelling (b) a dwelling in a de
                  minimis PUD, (c) a condominium unit or PUD (other than a de
                  minimis PUD), (d) a two-to-four unit residential property or
                  (e) a Cooperative Unit;

            (11)   the Mortgage Rate;

            (12)   the purpose for the Mortgage Loan;

            (13)   the type of documentation program pursuant to which the
                  Mortgage Loan was originated;

            (14)   the Master Servicing Fee for the Mortgage Loan; and

            (15)   a code indicating whether the Mortgage Loan is a MERS Mortgage
                   Loan.

                                       17
<PAGE>

         Such schedule shall also set forth the total of the amounts described
under (4) and (5) above for all of the Mortgage Loans.

         Mortgage Loans: Such of the mortgage loans transferred and assigned to
the Trustee pursuant to the provisions hereof as from time to time are held as a
part of the Trust Fund (including any REO Property), the mortgage loans so held
being identified in the Mortgage Loan Schedule, notwithstanding foreclosure or
other acquisition of title of the related Mortgaged Property.

         Mortgage Note: The original executed note or other evidence of
indebtedness evidencing the indebtedness of a Mortgagor under a Mortgage Loan.

         Mortgage Pool:   Either Pool I, Pool II or Pool III.

         Mortgage Rate: The annual rate of interest borne by a Mortgage Note
from time to time, net of any insurance premium charged by the mortgagee to
obtain or maintain any Primary Insurance Policy.

         Mortgaged Property: The underlying property securing a Mortgage Loan,
which, with respect to a Cooperative Loan, is the related Coop Shares and
Proprietary Lease.

         Mortgagor:   The obligor(s) on a Mortgage Note.

         National Cost of Funds Index: The National Monthly Median Cost of Funds
Ratio to SAIF-Insured Institutions published by the Office of Thrift
Supervision.

         Net Interest Shortfall: For any Distribution Date and each Mortgage
Pool, the sum of (a) the amount of interest which would otherwise have been
received for any Mortgage Loan in such Mortgage Pool that was the subject of (x)
a Relief Act Reduction or (y) a Special Hazard Loss, Fraud Loss, or Deficient
Valuation, after the exhaustion of the respective amounts of coverage for those
types of losses provided by the Subordinated Certificates; and (b) any Net
Prepayment Interest Shortfalls in respect of such Mortgage Pool.

         Net Prepayment Interest Shortfalls: As to any Distribution Date and
each Mortgage Pool, the amount by which the aggregate of Prepayment Interest
Shortfalls in respect of the Mortgage Loans or such Mortgage Pool during the
related Prepayment Period exceeds an amount equal to the Compensating Interest
paid in respect of such Mortgage Loans, if any, for such Distribution Date.

         Non-Delay Certificates:   As specified in the Preliminary Statement.

         Non-Excess Loss:   Any Realized Loss other than an Excess Loss.

         Nonrecoverable Advance: Any portion of an Advance previously made or
proposed to be made by the Master Servicer that, in the good faith judgment of
the Master Servicer, will not be ultimately recoverable by the Master Servicer
from the related Mortgagor, related Liquidation Proceeds or otherwise.

                                       18
<PAGE>

         Notice of Final Distribution: The notice to be provided pursuant to
Section 9.2 to the effect that final distribution on any of the Certificates
shall be made only upon presentation and surrender thereof.

         Notional Amount:   Not applicable.

         Notional Amount Component:   Not applicable.

         Notional Amount Certificates:   Not applicable.

         Offered Certificates:   As specified in the Preliminary Statement.

         Officer's Certificate: A Certificate (i) signed by the Chairman of the
Board, the Vice Chairman of the Board, the President, a Managing Director, a
Vice President (however denominated), an Assistant Vice President, the
Treasurer, the Secretary, or one of the Assistant Treasurers or Assistant
Secretaries of the Depositor or the Master Servicer, or (ii), if provided for in
this Agreement, signed by a Servicing Officer, as the case may be, and delivered
to the Depositor and the Trustee, as the case may be, as required by this
Agreement.

         Opinion of Counsel: A written opinion of counsel, who may be counsel
for the Depositor or the Master Servicer, including, in-house counsel,
reasonably acceptable to the Trustee; provided, however, that with respect to
the interpretation or application of the REMIC Provisions, such counsel must (i)
in fact be independent of the Depositor and the Master Servicer, (ii) not have
any direct financial interest in the Depositor or the Master Servicer or in any
affiliate of either, and (iii) not be connected with the Depositor or the Master
Servicer as an officer, employee, promoter, underwriter, trustee, partner,
director or person performing similar functions.

         Optional Termination: The termination of the trust created hereunder in
connection with the purchase of the Mortgage Loans pursuant to Section 9.1(a)
hereof.

         Original Subordinated Principal Balance: The aggregate Class
Certificate Balance of the Subordinated Certificates as of the Closing Date.

         Original Mortgage Loan: The Mortgage Loan refinanced in connection with
the origination of a Refinancing Mortgage Loan.

         OTS:   The Office of Thrift Supervision.

         Outside Reference Date:   Not applicable.

         Outstanding: With respect to the Certificates as of any date of
determination, all Certificates theretofore executed and authenticated under
this Agreement except:

                           (i) Certificates theretofore canceled by the Trustee
                  or delivered to the Trustee for cancellation; and

                                        19
<PAGE>

                           (ii) Certificates in exchange for which or in lieu of
                  which other Certificates have been executed and delivered by
                  the Trustee pursuant to this Agreement.

          Outstanding Mortgage Loan: As of any Due Date, a Mortgage Loan with a
Stated Principal Balance greater than zero which was not the subject of a
Principal Prepayment in Full prior to such Due Date and which did not become a
Liquidated Mortgage Loan prior to such Due Date.

         Ownership Interest: As to any Residual Certificate, any ownership
interest in such Certificate including any interest in such Certificate as the
Holder thereof and any other interest therein, whether direct or indirect, legal
or beneficial.

         Pass-Through Rate: For any Class of Certificates, the per annum rate
set forth or calculated in the manner described in the Preliminary Statement.

         Percentage Interest: As to any Certificate, the percentage interest
evidenced thereby in distributions required to be made on the related Class,
such percentage interest being set forth on the face thereof or equal to the
percentage obtained by dividing the Denomination of such Certificate by the
aggregate of the Denominations of all Certificates of the same Class.

         Permitted Investments: At any time, any one or more of the following
obligations and securities:

                           (i) obligations of the United States or any agency
                  thereof, provided such obligations are backed by the full
                  faith and credit of the United States;

                           (ii) general obligations of or obligations guaranteed
                  by any state of the United States or the District of Columbia
                  receiving the highest long-term debt rating of each Rating
                  Agency;

                           (iii) commercial or finance company paper which is
                  then receiving the highest commercial or finance company paper
                  rating of each Rating Agency;

                           (iv) certificates of deposit, demand or time
                  deposits, or bankers' acceptances issued by any depository
                  institution or trust company incorporated under the laws of
                  the United States or of any state thereof and subject to
                  supervision and examination by federal and/or state banking
                  authorities, provided that the commercial paper and/or long
                  term unsecured debt obligations of such depository institution
                  or trust company (or in the case of the principal depository
                  institution in a holding company system, the commercial paper
                   or long-term unsecured debt obligations of such holding
                  company, but only if Moody's is not a Rating Agency) are then
                  rated one of the two highest long-term and/or the highest
                  short-term ratings of each Rating Agency for such securities;

                           (v) demand or time deposits or certificates of
                  deposit issued by any bank or trust company or savings
                  institution to the extent that such deposits are fully insured
                  by the FDIC and receiving the highest short-term debt rating
                  of each Rating Agency;

                                       20
<PAGE>

                           (vi) guaranteed reinvestment agreements issued by any
                  bank, insurance company or other corporation and receiving the
                  highest short-term debt rating of each Rating Agency and
                  containing, at the time of the issuance of such agreements,
                   such terms and conditions as will not result in the
                  downgrading or withdrawal of the rating then assigned to the
                  Certificates by either Rating Agency;

                           (vii) repurchase obligations with respect to any
                  security described in clauses (i) and (ii) above, in either
                  case entered into with a depository institution or trust
                  company (acting as principal) described in clause (iv) above;

                           (viii) securities (other than stripped bonds,
                  stripped coupons or instruments sold at a purchase price in
                  excess of 115% of the face amount thereof) bearing interest or
                  sold at a discount issued by any corporation incorporated
                  under the laws of the United States or any state thereof
                  which, at the time of such investment, have one of the two
                  highest ratings of each Rating Agency (except if the Rating
                  Agency is Moody's or S&P, such rating shall be the highest
                  commercial paper rating of Moody's or S&P, as applicable, for
                  any such securities);

                           (ix) units of a taxable money-market portfolio having
                  the highest rating assigned by each Rating Agency (except if
                  Fitch is a Rating Agency and has not rated the portfolio, the
                  highest rating assigned by Moody's) and restricted to
                  obligations issued or guaranteed by the United States of
                  America or entities whose obligations are backed by the full
                  faith and credit of the United States of America and
                   repurchase agreements collateralized by such obligations; and

                           (x) such other investments bearing interest or sold
                  at a discount acceptable to each Rating Agency as will not
                  result in the downgrading or withdrawal of the rating then
                  assigned to the Certificates by either Rating Agency, as
                  evidenced by a signed writing delivered by each Rating Agency;

provided that no such instrument shall be a Permitted Investment if such
instrument evidences the right to receive interest only payments with respect to
the obligations underlying such instrument.

                                       21
<PAGE>

         Permitted Transferee: Any person other than (i) the United States, any
State or political subdivision thereof, or any agency or instrumentality of any
of the foregoing, (ii) a foreign government, International Organization or any
agency or instrumentality of either of the foregoing, (iii) an organization
(except certain farmers' cooperatives described in section 521 of the Code)
which is exempt from tax imposed by Chapter 1 of the Code (including the tax
imposed by section 511 of the Code on unrelated business taxable income) on any
excess inclusions (as defined in section 860E(c)(l) of the Code) with respect to
any Residual Certificate, (iv) rural electric and telephone cooperatives
described in section 1381(a)(2)(C) of the Code, (v) an "electing large
partnership" as defined in section 775 of the Code, (vi) a Person that is not
(a) a citizen or resident of the United States, (b) a corporation, partnership,
or other entity created or organized in or under the laws of the United States,
any state thereof or the District of Columbia, (c) an estate whose income from
sources without the United States is includible in gross income for United
States federal income tax purposes regardless of its connection with the conduct
of a trade or business within the United States or (d) a trust if a court within
the United States is able to exercise primary supervision over the
administration of the trust and one or more United States persons have the
authority to control all substantial decisions of the trust, unless such Person
has furnished the transferor and the Trustee with a duly completed Internal
Revenue Service Form W-8ECI or any applicable successor form, and (vii) any
other Person so designated by the Depositor based upon an Opinion of Counsel
that the Transfer of an Ownership Interest in a Residual Certificate to such
Person may cause any REMIC created hereunder to fail to qualify as a REMIC at
any time that the Certificates are outstanding; provided, however, that if a
person is classified as a partnership under the Code, such person shall only be
a Permitted Transferee if all of its beneficial owners are described in
subclauses (a), (b), (c) or (d) of clause (vi) and the governing documents of
such person prohibits a transfer of any interest in such person to any person
described in clause (vi). The terms "United States," "State" and "International
Organization" shall have the meanings set forth in section 7701 of the Code or
successor provisions. A corporation will not be treated as an instrumentality of
the United States or of any State or political subdivision thereof for these
purposes if all of its activities are subject to tax and, with the exception of
the Federal Home Loan Mortgage Corporation, a majority of its board of directors
is not selected by such government unit.

         Person: Any individual, corporation, partnership, joint venture,
association, joint-stock company, trust, unincorporated organization or
government, or any agency or political subdivision thereof.

         Physical Certificate:   As specified in the Preliminary Statement.

          Planned Balance:   Not applicable.

         Planned Principal Classes:   Not applicable.

         Pool I: The aggregate of the Mortgage Loans identified on the Mortgage
Loan Schedule as being included in Pool I.

         Pool II: The aggregate of the Mortgage Loans identified on the Mortgage
Loan Schedule as being included in Pool II.

         Pool III: The aggregate of the Mortgage Loans identified on the
Mortgage Loan Schedule as being included in Pool III.

                                       22
<PAGE>

         Pool Principal Balance: For a Mortgage Pool, with respect to any
Distribution Date, the aggregate of the Stated Principal Balances of the
Mortgage Loans in such Mortgage Pool which were Outstanding Mortgage Loans on
the Due Date in the month preceding the month of such Distribution Date, and for
the first Distribution Date, as of the Closing Date, less any Principal
Prepayments received on or after such Due Date and distributed to
Certificateholders on the prior Distribution Date.

          Prepayment Interest Excess: As to any Principal Prepayment received by
the Master Servicer from the first day through the fifteenth day of any calendar
month (other than the calendar month in which the Cut-off Date occurs), all
amounts paid by the related Mortgagor in respect of interest on such Principal
Prepayment. All Prepayment Interest Excess shall be paid to the Master Servicer
as additional master servicing compensation.

         Prepayment Interest Shortfall: As to any Distribution Date, Mortgage
Loan and Principal Prepayment received (a) during the period from the sixteenth
day of the month preceding the month of such Distribution Date (or, in the case
of the first Distribution Date, from the Cut-off Date) through the last day of
such month, in the case of a Principal Prepayment in Full, or (b) during the
month preceding the month of such Distribution Date, in the case of a partial
Principal Prepayment, the amount, if any, by which one month's interest at the
related Adjusted Mortgage Rate on such Principal Prepayment exceeds the amount
of interest actually paid by the Mortgagor in connection with such Principal
Prepayment.

         Prepayment Period: (a) With respect to any Principal Prepayments in
Full and any Distribution Date, the period from the sixteenth day of the month
preceding the month of such Distribution Date (or, in the case of the first
Distribution Date, from the Cut-off Date) through the fifteenth day of the month
of such Distribution Date, and (b) with respect to any other Principal
Prepayments and any Distribution Date, the month preceding the month of such
Distribution Date.

         Primary Insurance Policy: Each policy of primary mortgage guaranty
insurance or any replacement policy therefor with respect to any Mortgage Loan.

         Principal Balance Schedules:   Not applicable.

         Principal Prepayment: Any payment of principal by a Mortgagor on a
Mortgage Loan that is received in advance of its scheduled Due Date and is not
accompanied by an amount representing scheduled interest due on any date or
dates in any month or months subsequent to the month of prepayment. Partial
Principal Prepayments shall be applied by the Master Servicer in accordance with
the terms of the related Mortgage Note.

         Principal Prepayment in Full: Any Principal Prepayment made by a
Mortgagor of the entire principal balance of a Mortgage Loan.

         Private Certificate:   As specified in the Preliminary Statement.

         Proprietary Lease: With respect to any Cooperative Unit, a lease or
occupancy agreement between a Cooperative Corporation and a holder of related
Coop Shares.

         PUD:   Planned Unit Development.

                                       23
<PAGE>

         Purchase Price: With respect to any Mortgage Loan required to be
purchased by the Seller pursuant to Section 2.2 or 2.3 hereof or purchased at
the option of the Master Servicer pursuant to Section 3.11, an amount equal to
the sum of (i) 100% of the unpaid principal balance of the Mortgage Loan on the
date of such purchase, (ii) accrued interest thereon at the applicable Mortgage
Rate (or at the applicable Adjusted Mortgage Rate if the purchaser is the Master
Servicer) from the date through which interest was last paid by the Mortgagor to
the Due Date in the month in which the Purchase Price is to be distributed to
Certificateholders, and (iii) any costs and damages incurred by the Trust in
connection with the noncompliance of such Mortgage Loan with any specifically
applicable predatory or abusive lending law.

          Qualified Insurer: A mortgage guaranty insurance company duly qualified
as such under the laws of the state of its principal place of business and each
state having jurisdiction over such insurer in connection with the insurance
policy issued by such insurer, duly authorized and licensed in such states to
transact a mortgage guaranty insurance business in such states and to write the
insurance provided by the insurance policy issued by it, approved as a
FNMA-approved mortgage insurer and having a claims paying ability rating of at
least "AA" or equivalent rating by a nationally recognized statistical rating
organization. Any replacement insurer with respect to a Mortgage Loan must have
at least as high a claims paying ability rating as the insurer it replaces had
on the Closing Date.

         Rating Agency: Each of the Rating Agencies specified in the Preliminary
Statement. If any such organization or a successor is no longer in existence,
"Rating Agency" shall be such nationally recognized statistical rating
organization, or other comparable Person, as is designated by the Depositor,
notice of which designation shall be given to the Trustee. References herein to
a given rating category of a Rating Agency shall mean such rating category
without giving effect to any modifiers.

         Realized Loss: With respect to each Liquidated Mortgage Loan, an amount
(not less than zero or more than the Stated Principal Balance of the Mortgage
Loan) as of the date of such liquidation, equal to (i) the Stated Principal
Balance of the Liquidated Mortgage Loan as of the date of such liquidation, plus
(ii) interest at the Adjusted Net Mortgage Rate from the Due Date as to which
interest was last paid or advanced (and not reimbursed) to Certificateholders up
to the Due Date in the month in which Liquidation Proceeds are required to be
distributed on the Stated Principal Balance of such Liquidated Mortgage Loan
from time to time, minus (iii) any Liquidation Proceeds, Insurance Proceeds
and/or Unanticipated Recoveries received during the month in which such
liquidation occurred (or during the calendar month preceding the related
Distribution Date, as applicable), to the extent applied as recoveries of
interest at the Adjusted Net Mortgage Rate and to principal of the Liquidated
Mortgage Loan. With respect to each Mortgage Loan which has become the subject
of a Deficient Valuation, if the principal amount due under the related Mortgage
Note has been reduced, the difference between the principal balance of the
Mortgage Loan outstanding immediately prior to such Deficient Valuation and the
principal balance of the Mortgage Loan as reduced by the Deficient Valuation.

         Recognition Agreement: With respect to any Cooperative Loan, an
agreement between the Cooperative Corporation and the originator of such
Mortgage Loan which establishes the rights of such originator in the Cooperative
Property.

         Record Date: With respect to any Distribution Date, the close of
business on the last Business Day of the month preceding the month in which such
Distribution Date occurs.

         Reference Bank:   Not applicable.

                                       24
<PAGE>

         Refinancing Mortgage Loan: Any Mortgage Loan originated in connection
with the refinancing of an existing mortgage loan.

         Regular Certificates: As specified in the Preliminary Statement.

         Relief Act: The Servicemembers Civil Relief Act, or any similar state
or local legislation or regulations.

         Relief Act Reductions: With respect to any Distribution Date and any
Mortgage Loan as to which there has been a reduction in the amount of interest
collectible thereon for the most recently ended calendar month as a result of
the application of the Relief Act, the amount, if any, by which interest
collectible on such Mortgage Loan for the most recently ended calendar month is
less than interest accrued thereon for such month pursuant to the Mortgage Note.

         REMIC: A "real estate mortgage investment conduit" within the meaning
of section 860D of the Code.

         REMIC Change of Law: Any proposed, temporary or final regulation,
revenue ruling, revenue procedure or other official announcement or
interpretation relating to REMICs and the REMIC Provisions issued after the
Closing Date.

         REMIC Pool:   Either the Lower REMIC or the Upper REMIC.

         REMIC Provisions: Provisions of the federal income tax law relating to
real estate mortgage investment conduits, which appear at sections 860A through
860G of Subchapter M of Chapter 1 of the Code, and related provisions, and
regulations promulgated thereunder, as the foregoing may be in effect from time
to time as well as provisions of applicable state laws.

         REO Property: A Mortgaged Property acquired by the Trust Fund through
foreclosure or deed-in-lieu of foreclosure in connection with a defaulted
Mortgage Loan.

         Request for Release: The Request for Release submitted by the Master
Servicer to the Trustee, substantially in the form of Exhibits L and M, as
appropriate.

         Required Insurance Policy: With respect to any Mortgage Loan, any
insurance policy that is required to be maintained from time to time under this
Agreement.

         Required Recordation States: The states of Florida, Maryland and
Mississippi.

         Residual Certificates: As specified in the Preliminary Statement.

         Responsible Officer: When used with respect to the Trustee, any Vice
President, any Assistant Vice President, the Secretary, any Assistant Secretary,
any Trust Officer or any other officer of the Trustee customarily performing
functions similar to those performed by any of the above designated officers and
having direct responsibility for the administration of this Agreement and also
to whom, with respect to a particular matter, such matter is referred because of
such officer's knowledge of and familiarity with the particular subject.

                                       25
<PAGE>

         RL Interest: The REMIC residual interest, within the meaning of the
REMIC Provisions, issued by the Lower REMIC, which shall be represented by the
Class I-A-R Certificate.

         RU Interest: The REMIC residual interest, within the meaning of the
REMIC Provisions, issued by the Upper REMIC, which shall be represented by the
Class I-A-R Certificate.

         Scheduled Balances:   Not applicable.

         Scheduled Certificates:   Not applicable.

         Scheduled Payment: The scheduled monthly payment on a Mortgage Loan due
on any Due Date allocable to principal and/or interest on such Mortgage Loan
which, unless otherwise specified herein, shall give effect to any related Debt
Service Reduction and any Deficient Valuation that affects the amount of the
monthly payment due on such Mortgage Loan.

         Scheduled Principal Classes:   Not applicable.

         Securities Act:   The Securities Act of 1933, as amended.

         Security Agreement: The security agreement with respect to a
Cooperative Loan.

         Seller: First Horizon Home Loan Corporation, a Kansas corporation, and
its successors and assigns, in its capacity as seller of the Mortgage Loans
pursuant to the MLPA.

         Senior Certificates:   As specified in the Preliminary Statement.

         Senior Final Distribution Date: For each Certificate Group, the
Distribution Date on which the Class Certificate Balance of each Class of
related Senior Certificates has been reduced to zero.

         Senior Mezzanine Certificates: As specified in the Preliminary
Statement.

         Senior Optimal Principal Amount: As to a Mortgage Pool and with respect
to each Distribution Date, an amount equal to the sum of:

                  (1) the related Senior Percentage of all Scheduled Payments of
principal due on each Mortgage Loan in such Mortgage Pool on the first day of
the month in which the Distribution Date occurs, as specified in the
amortization schedule at the time applicable thereto after adjustment for
previous principal prepayments and the principal portion of Debt Service
Reductions after the Bankruptcy Loss Coverage Amount has been reduced to zero,
but before any adjustment to such amortization schedule by reason of any other
bankruptcy or similar proceeding or any moratorium or similar waiver or grace
period;

                  (2) the related Senior Prepayment Percentage of the Stated
Principal Balance of each Mortgage Loan in such Mortgage Pool which was the
subject of a Principal Prepayment in Full received by the Master Servicer during
the applicable Prepayment Period;

                                       26
<PAGE>

                  (3) the related Senior Prepayment Percentage of the sum of (a)
all partial Principal Prepayments in respect of each Mortgage Loan in such
Mortgage Pool received during the applicable Prepayment Period and (b) all
Unanticipated Recoveries received in respect of each Mortgage Loan in the
related Mortgage Pool during the calendar month prior to such Distribution Date;

                  (4) the lesser of:

                           (a) the related Senior Prepayment Percentage of the
                   sum of (x) the Liquidation Proceeds allocable to principal on
                  each Mortgage Loan in such Mortgage Pool which became a
                  Liquidated Mortgage Loan during the related Prepayment Period,
                  other than Mortgage Loans described in clause (y), and (y) the
                  principal balance of each Mortgage Loan in such Mortgage Pool
                  that was purchased by a private mortgage insurer during the
                  related Prepayment Period as an alternative to paying a claim
                  under the related Insurance Policy; and

                           (b)(i) the related Senior Percentage of the sum of
                  (x) the Stated Principal Balance of each Mortgage Loan in such
                  Mortgage Pool which became a Liquidated Mortgage Loan during
                  the related Prepayment Period, other than Mortgage Loans
                  described in clause (y), and (y) the Stated Principal Balance
                  of each Mortgage Loan in such Mortgage Pool that was purchased
                  by a private mortgage insurer during the related Prepayment
                  Period as an alternative to paying a claim under the related
                  Insurance Policy minus (ii) the related Senior Percentage of
                  the principal portion of Excess Losses (other than Debt
                  Service Reductions) for such Mortgage Pool during the related
                  Prepayment Period; and

                  (5) the related Senior Prepayment Percentage of the sum of (a)
the Stated Principal Balance of each Mortgage Loan in such Mortgage Pool which
was repurchased by the seller in connection with such Distribution Date and (b)
the difference, if any, between the Stated Principal Balance of a Mortgage Loan
in such Mortgage Pool that has been replaced by the seller with a Substitute
Mortgage Loan pursuant to this Agreement in connection with such Distribution
Date and the Stated Principal Balance of such Substitute Mortgage Loan.

         Senior Percentage: On any Distribution Date for a Certificate Group,
the lesser of 100% and the percentage (carried to six places rounded up)
obtained by dividing the aggregate Class Certificate Balances of all Classes of
Senior Certificates of such Certificate Group immediately preceding such
Distribution Date by the Pool Principal Balance of the related Mortgage Pool for
the immediately preceding Distribution Date.

         Senior Prepayment Percentage: On any Distribution Date occurring during
the periods set forth below, and as to each Certificate Group, the Senior
Prepayment Percentages, described below:

                                       27
<PAGE>

<TABLE>
<CAPTION>
--------------------------------------- ----------------------------------------------------------------------
Period (Dates Inclusive)                 Senior Prepayment Percentage
--------------------------------------- ----------------------------------------------------------------------
       Period (Dates Inclusive)                              Senior Prepayment Percentage
--------------------------------------- ----------------------------------------------------------------------
<S>                                      <C>
January 2006 - December 2012              100%
--------------------------------------- ----------------------------------------------------------------------
                                        The related Senior Percentage plus 70% of the related Subordinated
January 2013 - December 2013             Percentage
--------------------------------------- ----------------------------------------------------------------------
                                        The related Senior Percentage plus 60% of the related Subordinated
January 2014 - December 2014             Percentage
--------------------------------------- ----------------------------------------------------------------------
                                        The related Senior Percentage plus 40% of the related Subordinated
January 2015 - December 2015             Percentage
--------------------------------------- ----------------------------------------------------------------------
                                        The related Senior Percentage plus 20% of the related Subordinated
January 2016 - December 2016             Percentage
--------------------------------------- ----------------------------------------------------------------------
January 2017 and thereafter              The related Senior Percentage
--------------------------------------- ----------------------------------------------------------------------
</TABLE>

provided however, (i) if on any Distribution Date, the Aggregate Senior
Percentage exceeds such percentage calculated as of the Closing Date, then the
Senior Prepayment Percentage for all Certificate Groups for such Distribution
Date will equal 100%, (ii) if on any Distribution Date prior to the January 2009
Distribution Date, the Aggregate Subordinated Percentage is greater than or
equal to twice such percentage calculated as of the Closing Date, then the
Senior Prepayment Percentage for each Certificate Group for such Distribution
Date will equal the Senior Percentage for such Certificate Group plus 50% of the
Subordinated Percentage for such Certificate Group and (iii) if on or after the
January 2009 Distribution Date, the Aggregate Subordinated Percentage is greater
than or equal to twice such percentage calculated as of the Closing Date, then
the Senior Prepayment Percentage for each Certificate Group for such
Distribution Date will equal the Senior Percentage for such Certificate Group.

         The reductions in the Senior Prepayment Percentage for each Certificate
Group described above will not occur, and the Senior Prepayment Percentage or
each Certificate Group for such prior period will be calculated without regard
to clause (ii) or (iii) of the paragraph above, unless both of the following
step-down conditions are satisfied with respect to each Mortgage Pool as of the
last day of the month preceding the Distribution Date:

         (1)       the aggregate Stated Principal Balance of Mortgage Loans in
                  all the Mortgage Pools delinquent 60 days or more (including
                  for this purpose any Mortgage Loans in foreclosure or subject
                  to bankruptcy proceedings and Mortgage Loans with respect to
                  which the related Mortgaged Property, including REO Property,
                  has been acquired by the Trust Fund) does not exceed 50% of
                   the aggregate Class Certificate Balances of the Subordinated
                  Certificates as of that date; and

         (2)       cumulative Realized Losses on the Mortgage Loans in all the
                  Mortgage Pools do not exceed:

                  (a) 20% of the Original Subordinated Principal Balance if such
                  Distribution Date occurs between and including January 2006
                  and December 2008; and

                  (b) 30% of the Original Subordinated Principal Balance if such
                  Distribution Date occurs on or after January 2009.

                                       28
<PAGE>


         Servicing Advances: All customary, reasonable and necessary "out of
pocket" costs and expenses incurred in the performance by the Master Servicer of
its servicing obligations, including, but not limited to, the cost of (i) the
preservation, restoration and protection of a Mortgaged Property, (ii) any
expenses reimbursable to the Master Servicer pursuant to Section 3.11 and any
enforcement or judicial proceedings, including foreclosures, (iii) the
management and liquidation of any REO Property and (iv) compliance with the
obligations under Section 3.9.

         Servicing Agreement: The servicing agreement, dated as of November 26,
2002 by and between First Horizon Asset Securities Inc. and its assigns, as
owner, and First Tennessee Mortgage Services, Inc., as servicer.

         Servicing Officer: Any officer of the Master Servicer involved in, or
responsible for, the administration and servicing of the Mortgage Loans whose
name and facsimile signature appear on a list of servicing officers furnished to
the Trustee by the Master Servicer on the Closing Date pursuant to this
Agreement, as such list may from time to time be amended.

         Servicing Rights Transfer and Subservicing Agreement: The servicing
rights transfer and subservicing agreement, dated as of November 26, 2002, by
and between First Horizon Home Loan Corporation, as transferor and subservicer,
and First Tennessee Mortgage Services, Inc., as transferee and servicer.

         Special Hazard Coverage Termination Date: The date on which the Special
Hazard Loss Coverage Amount is reduced to zero.

         Special Hazard Loss: Any Realized Loss suffered by a Mortgaged Property
on account of direct physical loss but not including (i) any loss of a type
covered by a hazard insurance policy or a flood insurance policy required to be
maintained with respect to such Mortgaged Property pursuant to Section 3.9 to
the extent of the amount of such loss covered thereby, or (ii) any loss caused
by or resulting from:

                  (1) normal wear and tear;

                  (2) fraud, conversion or other dishonest act on the part of
the Trustee, the Master Servicer or any of their agents or employees (without
regard to any portion of the loss not covered by any errors and omissions
policy);

                  (3) errors in design, faulty workmanship or faulty materials,
unless the collapse of the property or a part thereof ensues and then only for
the ensuing loss;

                  (4) nuclear or chemical reaction or nuclear radiation or
radioactive or chemical contamination, all whether controlled or uncontrolled,
and whether such loss be direct or indirect, proximate or remote or be in whole
or in part caused by, contributed to or aggravated by a peril covered by the
definition of the term "Special Hazard Loss";

                  (5) hostile or warlike action in time of peace and war,
including action in hindering, combating or defending against an actual,
impending or expected attack:

                                       29
<PAGE>

                           (i) by any government or sovereign power, de jure or
                  de facto, or by any authority maintaining or using military,
                  naval or air forces;

                           (ii) by military, naval or air forces; or

                           (iii) by an agent of any such government, power,
authority or forces;

                   (6) any weapon of war employing nuclear fission, fusion or
other radioactive force, whether in time of peace or war; or

                  (7) insurrection, rebellion, revolution, civil war, usurped
power or action taken by governmental authority in hindering, combating or
defending against such an occurrence, seizure or destruction under quarantine or
customs regulations, confiscation by order of any government or public authority
or risks of contraband or illegal transportation or trade.

          Special Hazard Loss Coverage Amount: Upon the initial issuance of the
Certificates, $3,640,000. As of any Distribution Date, the Special Hazard Loss
Coverage Amount shall equal the greater of

                  (a) 1.00% (or if greater than 1.00%, the highest percentage of
Mortgage Loans by principal balance secured by Mortgaged Properties in any
single California zip code) of the outstanding principal balance of all the
Mortgage Loans as of the related Determination Date; and

                  (b) twice the outstanding principal balance of the Mortgage
Loan which has the largest outstanding principal balance as of the related
Determination Date,

less, in each case, the aggregate amount of Special Hazard Losses that would
have been previously allocated to the Subordinated Certificates in the absence
of the Loss Allocation Limitation. As of any Distribution Date on or after the
Cross-over Date, the Special Hazard Loss Coverage Amount shall be zero.

         Special Hazard Mortgage Loan: A Liquidated Mortgage Loan as to which a
Special Hazard Loss has occurred.

         S&P: Standard & Poor's, a division of The McGraw-Hill Companies, Inc.,
and its successors and/or assigns. If S&P is designated as a Rating Agency in
the Preliminary Statement, for purposes of Section 11.5(b) the address for
notices to S&P shall be Standard & Poor's, 55 Water Street, 41st Floor, New
York, New York 10041, Attention: Mortgage Surveillance Monitoring, or such other
address as S&P may hereafter furnish to the Depositor and the Master Servicer.

         Startup Day:   The Closing Date.

         Stated Principal Balance: As to any Mortgage Loan and Due Date, the
unpaid principal balance of such Mortgage Loan as of such Due Date as specified
in the amortization schedule at the time relating thereto (before any adjustment
to such amortization schedule by reason of any moratorium or similar waiver or
grace period) after giving effect to any previous partial Principal Prepayments
and Liquidation Proceeds allocable to principal (other than with respect to any
Liquidated Mortgage Loan) and to the payment of principal due on such Due Date
and irrespective of any delinquency in payment by the related Mortgagor.

                                       30
<PAGE>

         Streamlined Documentation Mortgage Loan: Any Mortgage Loan originated
pursuant to the Seller's Streamlined Loan Documentation Program then in effect.

         Subordinated Certificates:   As specified in the Preliminary Statement.

         Subordinated Certificate Writedown Amount: As of any Distribution Date,
the amount by which (a) the sum of the Class Certificate Balances of all of the
Certificates, after giving effect to the distribution of principal and the
allocation of Realized Losses in reduction of the Class Certificate Balances of
all of the Certificates on such Distribution Date, exceeds (b) the aggregate of
the Pool Principal Balances for each Mortgage Pool on the first day of the month
of such Distribution Date, less any Deficient Valuations occurring before the
Bankruptcy Loss Coverage Amount has been reduced to zero.

         Subordinated Optimal Principal Amount: With respect to each Mortgage
Pool and each Distribution Date, an amount equal to the sum of the following
(but in no event greater than the aggregate Class Certificate Balances of the
Subordinated Certificates immediately prior to such Distribution Date):

                  (1) the related Subordinated Percentage of all Scheduled
Payments of principal due on each outstanding Mortgage Loan in the related
Mortgage Pool on the first day of the month in which the Distribution Date
occurs, as specified in the amortization schedule at the time applicable
thereto, after adjustment for previous principal prepayments and the principal
portion of Debt Service Reductions after the Bankruptcy Loss Coverage Amount has
been reduced to zero, but before any adjustment to such amortization schedule by
reason of any other bankruptcy or similar proceeding or any moratorium or
similar waiver or grace period;

                   (2) the related Subordinated Prepayment Percentage of the
Stated Principal Balance of each Mortgage Loan in the related Mortgage Pool
which was the subject of a Principal Prepayment in Full received by the Master
Servicer during the related Prepayment Period;

                  (3) the related Subordinated Prepayment Percentage of the sum
of (a) all partial Principal Prepayments received in respect of each Mortgage
Loan in the related Mortgage Pool during the related Prepayment Period, (b) all
Unanticipated Recoveries received in respect of each Mortgage Loan in the
related Mortgage Pool during the calendar month prior to such Distribution Date,
and (c) on the Senior Final Distribution Date, 100% of any related Senior
Optimal Principal Amount remaining undistributed on such date;

                  (4) the amount, if any, by which the sum of (a) the net
Liquidation Proceeds allocable to principal received during the related
Prepayment Period in respect of each Liquidated Mortgage Loan in the related
Mortgage Pool, other than Mortgage Loans described in clause (b), and (b) the
principal balance of each Mortgage Loan in the related Mortgage Pool that was
purchased by a private mortgage insurer during the related Prepayment Period as
an alternative to paying a claim under the related Insurance Policy exceeds (c)
the sum of the amounts distributable to the Senior Certificateholders under
clause (4) of the definition of applicable Senior Optimal Principal Amount on
such Distribution Date; and

                                        31
<PAGE>

                  (5) the related Subordinated Prepayment Percentage of the sum
of (a) the Stated Principal Balance of each Mortgage Loan in the related
Mortgage Pool which was repurchased by the seller in connection with such
Distribution Date and (b) the difference, if any, between the Stated Principal
Balance of each Mortgage Loan in the related Mortgage Pool that has been
replaced by the seller with a Substitute Mortgage Loan pursuant to this
Agreement in connection with such Distribution Date and the Stated Principal
Balance of each such Substitute Mortgage Loan.

         Subordinated Percentage: For any Distribution Date and each Certificate
Group, 100% minus the related Senior Percentage.

         Subordinated Prepayment Percentage: For any Distribution Date, 100%
minus the Senior Prepayment Percentage.

         Subservicer: Any person to whom the Master Servicer has contracted for
the servicing of all or a portion of the Mortgage Loans pursuant to Section 3.2
hereof.

         Substitute Mortgage Loan: A Mortgage Loan substituted by the Seller for
a Deleted Mortgage Loan which must, on the date of such substitution, as
confirmed in a Request for Release, substantially in the form of Exhibit L, (i)
have a Stated Principal Balance, after deduction of the principal portion of the
Scheduled Payment due in the month of substitution, not in excess of, and not
more than 10% less than the Stated Principal Balance of the Deleted Mortgage
Loan; (ii) have an Adjusted Net Mortgage Rate not lower than the Adjusted Net
Mortgage Rate of the Deleted Mortgage Loan, provided that the Master Servicing
Fee for the Substitute Mortgage Loan shall be equal to or greater than that of
the Deleted Mortgage Loan; (iii) have a maximum mortgage rate not more than 1%
per annum higher or lower than the maximum mortgage rate of the Deleted Mortgage
Loan; (iv) have a minimum mortgage rate specified in its related Mortgage Note
not more than 1% per annum higher or lower than the minimum mortgage rate of the
Deleted Mortgage Loan; (v) have the same mortgage index, reset period and
periodic rate as the Deleted Mortgage Loan and a gross margin not more than 1%
per annum higher or lower than that of the Deleted Mortgage Loan (vi) be
accruing interest at a rate no lower than and not more than 1% per annum higher
than, that of the Deleted Mortgage Loan; (iv) have a Loan-to-Value Ratio no
higher than that of the Deleted Mortgage Loan; (vii) have a remaining term to
maturity no greater than (and not more than one year less than that of) the
Deleted Mortgage Loan; (viii) not be a Cooperative Loan unless the Deleted
Mortgage Loan was a Cooperative Loan and (ix) comply with each representation
and warranty set forth in Section 2.3 hereof.

         Substitution Adjustment Amount: The meaning ascribed to such term
pursuant to Section 2.3.

         Super Senior Certificates:   As specified in the Preliminary Statement.

         Super Senior Support Certificates:   Not applicable.

                                        32
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         Support Classes:   Not applicable.

         Targeted Balances:   Not applicable.

         Targeted Principal Classes:   Not applicable.

         Tax Matters Person: The person designated as "tax matters person" in
the manner provided under Treasury regulation ss. 1.860F-4(d) and Treasury
regulation ss. 301.6231(a)(7)-1. Initially, the Tax Matters Person shall be the
Trustee.

         Tax Matters Person Certificate: The Class I-A-R Certificates with a
Denomination of $0.01.

         Transfer: Any direct or indirect transfer or sale of any Ownership
Interest in a Residual Certificate.

         Trust Fund: The corpus of the trust created hereunder consisting of (i)
the Mortgage Loans and all interest and principal received on or with respect
thereto after the Cut-off Date to the extent not applied in computing the
Cut-off Date Principal Balance thereof; (ii) all of the Depositor's rights as
purchaser under the MLPA; (iii) the Certificate Account and the Distribution
Account and all amounts deposited therein pursuant to the applicable provisions
of this Agreement; (iv) property that secured a Mortgage Loan and has been
acquired by foreclosure, deed-in-lieu of foreclosure or otherwise; and (v) all
proceeds of the conversion, voluntary or involuntary, of any of the foregoing.

         Trustee: The Bank of New York and its successors and, if a successor
trustee is appointed hereunder, such successor.

         Trustee Fee: As to any Distribution Date and a Mortgage Pool, an amount
equal to one-twelfth of the Trustee Fee Rate multiplied by the applicable Pool
Principal Balance with respect to such Distribution Date.

         Trustee Fee Rate: With respect to each Mortgage Loan, the per annum
rate agreed upon in writing on or prior to the Closing Date by the Trustee and
the Depositor.

         Unanticipated Recovery:   As defined in Section 4.2(h).

         Undercollateralization Distribution:   As defined in Section 4.2(i).

         Undercollateralized Group: With respect to any Distribution Date, the
Senior Certificates of any Certificate Group as to which the aggregate
Certificate Principal Balance thereof, after giving effect to distributions
pursuant to Section 4.2(a) on such date, is greater than the Pool Principal
Balance of the related Mortgage Pool for such Distribution Date.

         Underwriter: As specified in the Preliminary Statement.

                                       33
<PAGE>

         Underwriters' Exemption: An individual administrative exemption granted
by the U.S. Department of Labor to the Underwriter providing exceptions from
some of the prohibited transaction rules of ERISA with respect to the initial
purchase, the holding and the subsequent resale by employee benefit plans in
certificates in pass-through trusts having assets and meeting conditions
described therein, as amended by Prohibited Transaction Exemption 2000-58 (65
Fed. Reg. 67765, November 13, 2000), as amended, and Prohibited Transaction
Exemption 2002-41 (67 Fed. Reg. 54487, August 22, 2002), as amended (or any
successor thereto), or any substantially similar administrative exemption
granted by the U.S. Department of Labor.

         Upper REMIC: The segregated pool of assets consisting of the Lower
REMIC Interests.

         Voting Rights: The portion of the voting rights of all of the
Certificates which is allocated to any Certificate. As of any date of
determination, (a) 99.0% of all Voting Rights will be allocated among all
Holders of the Certificates, other than the Class I-A-R Certificates, in
proportion to their then outstanding Class Certificate Balance; and (b) 1.0% of
all Voting Rights will be allocated to the Holders of the Class I-A-R
Certificates (such Voting Rights to be allocated among the Holders of
Certificates of each such Class in accordance with their respective Percentage
Interests).

         Weighted Average Adjusted Net Mortgage Rate: For a Mortgage Pool, the
average of the Adjusted Net Mortgage Rates of the Mortgage Loans in the related
Loan Group, weighted on the basis of the Stated Principal Balances thereof.

                                   ARTICLE II
                          CONVEYANCE OF MORTGAGE LOANS;
                         REPRESENTATIONS AND WARRANTIES

            SECTION 2.1 Conveyance of Mortgage Loans.

      (a)    The Depositor, concurrently with the execution and delivery hereof,
            hereby sells, transfers, assigns, sets over and otherwise conveys to
            the Trustee for the benefit of the Certificateholders, without
            recourse, all the right, title and interest of the Depositor in and
            to the Trust Fund together with (i) the Depositor's right to (A)
            require the Seller to cure any breach of a representation or
            warranty made by the Seller pursuant to the MLPA, or (B) repurchase
            or substitute for any affected Mortgage Loan in accordance herewith,
            and (ii) all right, title and interest of the Depositor in, to and
            under the Servicing Agreement, which right has been assigned to the
            Depositor pursuant to the MLPA.

      (b)    In connection with the transfer and assignment set forth in clause
            (a) above, the Depositor has delivered or caused to be delivered to
            the Trustee or the Custodian on its behalf (or, in the case of the
            Delay Delivery Mortgage Loans, will deliver or cause to be delivered
            to the Trustee or the Custodian on its behalf within thirty (30)
            days following the Closing Date) for the benefit of the
            Certificateholders the following documents or instruments with
            respect to each Mortgage Loan so assigned:

      (i)    (A) the original Mortgage Note endorsed by manual or facsimile
            signature in blank in the following form: "Pay to the order of
            ________________, without recourse," with all intervening
            endorsements showing a complete chain of endorsement from the
            originator to the Person endorsing the Mortgage Note (each such
             endorsement being sufficient to transfer all right, title and
            interest of the party so endorsing, as noteholder or assignee
            thereof, in and to that Mortgage Note); or

                                       34
<PAGE>

            (B) with respect to any Lost Mortgage Note, a lost note affidavit
            from the Seller stating that the original Mortgage Note was lost or
            destroyed, together with a copy of such Mortgage Note;

      (ii)   except as provided below and for each Mortgage Loan that is not a
            MERS Mortgage Loan, the original recorded Mortgage or a copy of such
            Mortgage certified by the Seller as being a true and complete copy
            of the Mortgage, and in the case of each MERS Mortgage Loan, the
            original recorded Mortgage, noting the presence of the MIN of the
            Mortgage Loans and either language indicating that the Mortgage Loan
            is a MOM Loan if the Mortgage Loan is a MOM Loan or if the Mortgage
            Loan was not a MOM Loan at origination, the original Mortgage and
            the assignment thereof to MERS, with evidence of recording indicated
            thereon, or a copy of the Mortgage certified by the Seller as being
            a true and complete copy of the Mortgage;

      (iii) in the case of a Mortgage Loan that is not a MERS Mortgage Loan, a
            duly executed assignment of the Mortgage, or a copy of such
            assignment certified by the Seller as being a true and complete copy
            of the assignment, in blank (which may be included in a blanket
            assignment or assignments), together with, except as provided below,
            all interim recorded assignments, or copies of such interim
            assignments certified by the Seller as being true and complete
            copies of the interim assignments, of such Mortgage (each such
            assignment, when duly and validly completed, to be in recordable
            form and sufficient to effect the assignment of and transfer to the
            assignee thereof, under the Mortgage to which the assignment
            relates); provided that, if the related Mortgage has not been
            returned from the applicable public recording office, such
            assignment of the Mortgage may exclude the information to be
            provided by the recording office;

      (iv)   the original or copies of each assumption, modification, written
            assurance or substitution agreement, if any;

       (v)    either the original or duplicate original title policy, or a copy of
            such title policy certified by the Seller as being a true and
            complete copy of the title policy (including all riders thereto),
            with respect to the related Mortgaged Property, if available,
            provided that the title policy (including all riders thereto) will
            be delivered as soon as it becomes available, and if the title
            policy is not available, and to the extent required pursuant to the
            second paragraph below or otherwise in connection with the rating of
            the Certificates, a written commitment or interim binder or
            preliminary report of the title issued by the title insurance or
            escrow company with respect to the Mortgaged Property, or in lieu
            thereof, an Alternative Title Product or a copy of such Alternative
            Title Product certified by the Seller as being a true and complete
            copy of the Alternative Title Product; and

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<PAGE>

      (vi)   in the case of a Cooperative Loan, the originals of the following
            documents or instruments:

            (A)    The Coop Shares, together with a stock power in blank;

            (B)    The executed Security Agreement;

            (C)    The executed Proprietary Lease;

            (D)    The executed Recognition Agreement;

            (E)    The executed UCC-1 financing statement with evidence of
                  recording thereon which have been filed in all places required
                  to perfect the Seller's interest in the Coop Shares and the
                  Proprietary Lease; and

            (F)    Executed UCC-3 financing statements or other appropriate UCC
                  financing statements required by state law, evidencing a
                  complete and unbroken line from the mortgagee to the Trustee
                  with evidence of recording thereon (or in a form suitable for
                  recordation).

         In the event that in connection with any Mortgage Loan that is not a
MERS Mortgage Loan the Depositor cannot deliver (a) the original recorded
Mortgage or (b) all interim recorded assignments satisfying the requirements of
clause (ii) or (iii) above, respectively, concurrently with the execution and
delivery hereof because such document or documents have not been returned from
the applicable public recording office, the Depositor shall promptly deliver or
cause to be delivered to the Trustee or the Custodian on its behalf such
original Mortgage or such interim assignment, as the case may be, with evidence
of recording indicated thereon upon receipt thereof from the public recording
office, or a copy thereof, certified, if appropriate, by the relevant recording
office, but in no event shall any such delivery of the original Mortgage and
each such interim assignment or a copy thereof, certified, if appropriate, by
the relevant recording office, be made later than one year following the Closing
Date; provided, however, in the event the Depositor is unable to deliver or
cause to be delivered by such date each Mortgage and each such interim
assignment by reason of the fact that any such documents have not been returned
by the appropriate recording office, or, in the case of each such interim
assignment, because the related Mortgage has not been returned by the
appropriate recording office, the Depositor shall deliver or cause to be
delivered such documents to the Trustee or the Custodian on its behalf as
promptly as possible upon receipt thereof and, in any event, within 720 days
following the Closing Date. The Depositor shall forward or cause to be forwarded
to the Trustee or the Custodian on its behalf (a) from time to time additional
original documents evidencing an assumption or modification of a Mortgage Loan
and (b) any other documents required to be delivered by the Depositor or the
Master Servicer to the Trustee. In the event that the original Mortgage is not
delivered and in connection with the payment in full of the related Mortgage
Loan and the public recording office requires the presentation of a "lost
instruments affidavit and indemnity" or any equivalent document, because only a
copy of the Mortgage can be delivered with the instrument of satisfaction or
reconveyance, the Master Servicer shall execute and deliver or cause to be
executed and delivered such a document to the public recording office. In the
case where a public recording office retains the original recorded Mortgage or
in the case where a Mortgage is lost after recordation in a public recording
office, the Depositor shall deliver or cause to be delivered to the Trustee or
the Custodian on its behalf a copy of such Mortgage certified by such public
recording office to be a true and complete copy of the original recorded
Mortgage.

                                       36
<PAGE>

         In addition, in the event that in connection with any Mortgage Loan the
Depositor cannot deliver or cause to be delivered the original or duplicate
original lender's title policy (together with all riders thereto), satisfying
the requirements of clause (v) above, concurrently with the execution and
delivery hereof because the related Mortgage has not been returned from the
applicable public recording office, the Depositor shall promptly deliver or
cause to be delivered to the Trustee or the Custodian on its behalf such
original or duplicate original lender's title policy (together with all riders
thereto) upon receipt thereof from the applicable title insurer, but in no event
shall any such delivery of the original or duplicate original lender's title
policy be made later than one year following the Closing Date; provided,
however, in the event the Depositor is unable to deliver or cause to be
delivered by such date the original or duplicate original lender's title policy
(together with all riders thereto) because the related Mortgage has not been
returned by the appropriate recording office, the Depositor shall deliver or
cause to be delivered such documents to the Trustee or the Custodian on its
behalf as promptly as possible upon receipt thereof and, in any event, within
720 days following the Closing Date; provided further, however, that the
Depositor shall not be required to deliver an original or duplicate lender's
title policy (together with all riders thereto) if the Depositor delivers an
Alternative Title Product in lieu thereof. Notwithstanding the preceding, in
connection with any Mortgage Loan for which either the original or duplicate
original title policy has not been delivered to the Trust, if at any time during
the term of this Agreement the parent company of the Seller does not have a long
term senior debt rating of A- or higher from S&P and A- or higher from Fitch (if
rated by Fitch), then the Depositor shall within 30 days deliver or cause to be
delivered to the Trustee or the Custodian on its behalf (if it has not
previously done so) a written commitment or interim binder or preliminary report
of the title issued by the title insurance or escrow company with respect to the
Mortgaged Property.

         Subject to the immediately following sentence, as promptly as
practicable subsequent to such transfer and assignment, and in any event, within
thirty (30) days thereafter, the Master Servicer shall (i) complete each
assignment of Mortgage, as follows: "First Horizon Mortgage Pass-Through
Certificates, Series 2005-AA12, The Bank of New York, as trustee for the holders
of the Certificates", (ii) cause such assignment to be in proper form for
recording in the appropriate public office for real property records and (iii)
cause to be delivered for recording in the appropriate public office for real
property records the assignments of the Mortgages to the Trustee, except that,
with respect to any assignments of Mortgage as to which the Master Servicer has
not received the information required to prepare such assignment in recordable
form, the Master Servicer's obligation to do so and to deliver the same for such
recording shall be as soon as practicable after receipt of such information and
in any event within thirty (30) days after receipt thereof. Notwithstanding the
foregoing, the Master Servicer need not cause to be recorded any assignment
which relates to a Mortgage Loan in any state other than the Required
Recordation States.

                                       37
<PAGE>

         In the case of Mortgage Loans that have been prepaid in full as of the
Closing Date, the Depositor, in lieu of delivering the above documents to the
Trustee or the Custodian on its behalf, will deposit in the Certificate Account
the portion of such payment that is required to be deposited in the Certificate
Account pursuant to Section 3.8 hereof.

         Notwithstanding anything to the contrary in this Agreement, within
thirty days after the Closing Date, the Depositor shall either (i) deliver or
cause to be delivered to the Trustee or the Custodian on its behalf the Mortgage
File as required pursuant to this Section 2.1 for each Delay Delivery Mortgage
Loan or (ii) (A) substitute or cause to be substituted a Substitute Mortgage
Loan for the Delay Delivery Mortgage Loan or (B) repurchase or cause to be
repurchased the Delay Delivery Mortgage Loan, which substitution or repurchase
shall be accomplished in the manner and subject to the conditions set forth in
Section 2.3 (treating each Delay Delivery Mortgage Loan as a Deleted Mortgage
Loan for purposes of such Section 2.3), provided, however, that if the Depositor
fails to deliver a Mortgage File for any Delay Delivery Mortgage Loan within the
thirty-day period provided in the prior sentence, the Depositor shall use its
best reasonable efforts to effect or cause to be effected a substitution, rather
than a repurchase of, such Deleted Mortgage Loan and provided further that the
cure period provided for in Section 2.2 or in Section 2.3 shall not apply to the
initial delivery of the Mortgage File for such Delay Delivery Mortgage Loan, but
rather the Depositor shall have five (5) Business Days to cure or cause to be
cured such failure to deliver. At the end of such thirty-day period, the Trustee
or the Custodian, on its behalf shall send a Delay Delivery Certification for
the Delay Delivery Mortgage Loans delivered during such thirty-day period in
accordance with the provisions of Section 2.2. Notwithstanding anything to the
contrary contained in this Agreement, none of the Mortgage Loans in the Trust
Fund is or will be Delay Delivery Mortgage Loans.

            SECTION 2.2 Acceptance by Trustee of the Mortgage Loans.

         The Trustee or the Custodian, on behalf of the Trustee, acknowledges
receipt of the documents identified in the Initial Certification in the form
annexed hereto as Exhibit E and declares that it or the Custodian holds and will
hold such documents and the other documents delivered to it or the Custodian, as
applicable, constituting the Mortgage Files, and that it or the Custodian, as
applicable, holds or will hold such other assets as are included in the Trust
Fund, in trust for the exclusive use and benefit of all present and future
Certificateholders. The Trustee acknowledges that the Custodian will maintain
possession of the Mortgage Notes in the State of Texas, unless otherwise
permitted by the Rating Agencies.

          The Trustee agrees to execute and deliver or to cause the Custodian to
execute and deliver on the Closing Date to the Depositor and the Master Servicer
an Initial Certification in the form annexed hereto as Exhibit E. Based on its
or the Custodian's review and examination, and only as to the documents
identified in such Initial Certification, the Custodian, on behalf of the
Trustee, acknowledges that such documents appear regular on their face and
relate to such Mortgage Loan. Neither the Trustee nor the Custodian shall be
under any duty or obligation to inspect, review or examine said documents,
instruments, certificates or other papers to determine that the same are
genuine, enforceable or appropriate for the represented purpose or that they
have actually been recorded in the real estate records or that they are other
than what they purport to be on their face.

                                       38
<PAGE>

         On or about the thirtieth (30th) day after the Closing Date, the
Trustee shall deliver or shall cause the Custodian to deliver to the Depositor
and the Master Servicer a Delay Delivery Certification in the form annexed
hereto as Exhibit F, with any applicable exceptions noted thereon.
Notwithstanding anything to the contrary contained in this Agreement, none of
the Mortgage Loans in the Trust Fund is or will be Delay Delivery Mortgage
Loans.

         Not later than 90 days after the Closing Date, the Trustee shall
deliver or shall cause the Custodian to deliver to the Depositor and the Master
Servicer a Subsequent Certification in the form annexed hereto as Exhibit G,
with any applicable exceptions noted thereon.

         If, in the course of such review, the Trustee or the Custodian, on
behalf of the Trustee, finds any document constituting a part of a Mortgage File
which does not meet the requirements of Section 2.1, the Trustee shall list or
shall cause the Custodian to list such as an exception in the Subsequent
Certification; provided, however that neither the Trustee nor the Custodian
shall make any determination as to whether (i) any endorsement is sufficient to
transfer all right, title and interest of the party so endorsing, as noteholder
or assignee thereof, in and to that Mortgage Note or (ii) any assignment is in
recordable form or is sufficient to effect the assignment of and transfer to the
assignee thereof under the mortgage to which the assignment relates. The Seller
shall promptly correct or cure such defect within 90 days from the date it was
so notified of such defect and, if the Seller does not correct or cure such
defect within such period, the Seller shall either (a) substitute for the
related Mortgage Loan a Substitute Mortgage Loan, which substitution shall be
accomplished in the manner and subject to the conditions set forth in Section
2.3, or (b) purchase such Mortgage Loan from the Trustee within 90 days from the
date the Seller was notified of such defect in writing at the Purchase Price of
such Mortgage Loan; provided, however, that in no event shall such substitution
or purchase occur more than 540 days from the Closing Date, except that if the
substitution or purchase of a Mortgage Loan pursuant to this provision is
required by reason of a delay in delivery of any documents by the appropriate
recording office, and there is a dispute between either the Master Servicer or
the Seller and the Trustee over the location or status of the recorded document,
then such substitution or purchase shall occur within 720 days from the Closing
Date. The Trustee shall deliver or shall cause the Custodian to deliver written
notice to each Rating Agency within 270 days from the Closing Date indicating
each Mortgage Loan (a) which has not been returned by the appropriate recording
office or (b) as to which there is a dispute as to location or status of such
Mortgage Loan. Such notice shall be delivered every 90 days thereafter until the
related Mortgage Loan is returned to the Trustee or the Custodian on its behalf.
Any such substitution pursuant to (a) above or purchase pursuant to (b) above
shall not be effected prior to the delivery to the Trustee of the Opinion of
Counsel required by Section 2.5 hereof, if any, and any substitution pursuant to
(a) above shall not be effected prior to the additional delivery to the Trustee
of a Request for Release substantially in the form of Exhibit L. No substitution
is permitted to be made in any calendar month after the Determination Date for
such month. The Purchase Price for any such Mortgage Loan shall be deposited by
the Seller in the Certificate Account on or prior to the Distribution Account
Deposit Date for the Distribution Date in the month following the month of
repurchase and, upon receipt of such deposit and certification with respect
thereto in the form of Exhibit M hereto, the Trustee shall cause the Custodian
to release the related Mortgage File to the Seller and shall execute and deliver
at the Seller's request such instruments of transfer or assignment prepared by
the Seller, in each case without recourse, as shall be necessary to vest in the
Seller, or a designee, the Trustee's interest in any Mortgage Loan released
pursuant hereto. If pursuant to the foregoing provisions the Seller repurchases
a Mortgage Loan that is a MERS Mortgage Loan, the Master Servicer shall either
(i) cause MERS to execute and deliver an assignment of the Mortgage in
recordable form to transfer the Mortgage from MERS to the Seller and shall cause
such Mortgage to be removed from registration on the MERS(R) System in
accordance with MERS' rules and regulations or (ii) cause MERS to designate on
the MERS(R) System the Seller as the beneficial holder of such Mortgage Loan.

                                       39
<PAGE>

         The Trustee shall retain or shall cause the Custodian to retain
possession and custody of each Mortgage File in accordance with and subject to
the terms and conditions set forth herein. The Master Servicer shall promptly
deliver to the Trustee or the Custodian on its behalf, upon the execution or
receipt thereof, the originals of such other documents or instruments
constituting the Mortgage File as come into the possession of the Master
Servicer from time to time.

         It is understood and agreed that the obligation of the Seller to
substitute for or to purchase any Mortgage Loan which does not meet the
requirements of Section 2.1 above shall constitute the sole remedy respecting
such defect available to the Trustee, the Depositor and any Certificateholder
against the Seller.

         The mortgage loans permitted by the terms of this Agreement to be
included in the Trust Fund are limited to (i) the Mortgage Loans (which the
Depositor acquired pursuant to the MLPA, which contains, among other
representations and warranties, a representation and warranty of the Seller that
no Mortgage Loan is a "high cost loan" as defined by the specific applicable
local, state or federal predatory and abusive lending laws, and (ii) Substitute
Mortgage Loans (which, by definition as set forth in this Agreement and referred
to in the MLPA, are required to conform to, among other representations and
warranties, a representation and warranty of the Seller set forth in the MLPA
that no Substitute Mortgage Loan is a "high cost loan" as defined by the
specific applicable local, state or federal predatory and abusive lending laws).
It is therefore understood and agreed by the parties hereto that it is not
intended that any Mortgage Loan be included in the Trust Fund that is a "high
cost loan" as defined by the specific applicable local, state or federal
predatory and abusive lending laws.

            SECTION 2.3 Representations and Warranties of the Master Servicer;
Covenants of the Seller.

      (a)    The Master Servicer hereby makes the representations and warranties
            set forth in Schedule II hereto and by this reference incorporated
            herein, to the Depositor and the Trustee, as of the Closing Date, or
            if so specified therein, as of the Cut-off Date.

                                       40
<PAGE>

      (b)    Upon discovery by any of the parties hereto of a breach of a
            representation or warranty made pursuant to Schedule B to the MLPA
            that materially and adversely affects the interests of the
            Certificateholders in any Mortgage Loan, the party discovering such
            breach shall give prompt notice thereof to the other parties. The
            Seller hereby covenants that within 90 days of the earlier of its
            discovery or its receipt of written notice from any party of a
             breach of any representation or warranty made pursuant to Schedule B
            to the MLPA which materially and adversely affects the interests of
            the Certificateholders in any Mortgage Loan, it shall cure such
            breach in all material respects, and if such breach is not so cured,
            shall, (i) if such 90-day period expires prior to the second
            anniversary of the Closing Date, remove such Mortgage Loan (a
            "Deleted Mortgage Loan") from the Trust Fund and substitute in its
            place a Substitute Mortgage Loan, in the manner and subject to the
            conditions set forth in this Section; or (ii) repurchase the
            affected Mortgage Loan or Mortgage Loans from the Trustee at the
             Purchase Price in the manner set forth below; provided, however,
            that any such substitution pursuant to (i) above shall not be
            effected prior to the delivery to the Trustee of the Opinion of
            Counsel required by Section 2.5 hereof, if any, and any such
            substitution pursuant to (i) above shall not be effected prior to
            the additional delivery to the Trustee or the Custodian on its
            behalf of a Request for Release substantially in the form of Exhibit
            M and the Mortgage File for any such Substitute Mortgage Loan. The
            Seller shall promptly reimburse the Master Servicer and the Trustee
            for any expenses reasonably incurred by the Master Servicer or the
            Trustee in respect of enforcing the remedies for such breach. With
            respect to the representations and warranties described in this
            Section which are made to the best of the Seller's knowledge, if it
            is discovered by either the Depositor, the Seller or the Trustee
            that the substance of such representation and warranty is inaccurate
            and such inaccuracy materially and adversely affects the value of
            the related Mortgage Loan or the interests of the Certificateholders
            therein, notwithstanding the Seller's lack of knowledge with respect
            to the substance of such representation or warranty, such inaccuracy
            shall be deemed a breach of the applicable representation or
            warranty.

         With respect to any Substitute Mortgage Loan or Loans, the Seller shall
deliver to the Trustee or the Custodian on its behalf for the benefit of the
Certificateholders the Mortgage Note, the Mortgage, the related assignment of
the Mortgage, and such other documents and agreements as are required by Section
2.1, with the Mortgage Note endorsed and the Mortgage assigned as required by
Section 2.1. No substitution is permitted to be made in any calendar month after
the Determination Date for such month. Scheduled Payments due with respect to
Substitute Mortgage Loans in the month of substitution shall not be part of the
Trust Fund and will be retained by the Seller on the next succeeding
Distribution Date. For the month of substitution, distributions to
Certificateholders will include the monthly payment due on any Deleted Mortgage
Loan for such month and thereafter the Seller shall be entitled to retain all
amounts received in respect of such Deleted Mortgage Loan. The Master Servicer
shall amend the Mortgage Loan Schedule for the benefit of the Certificateholders
to reflect the removal of such Deleted Mortgage Loan and the substitution of the
Substitute Mortgage Loan or Loans and the Master Servicer shall deliver the
amended Mortgage Loan Schedule to the Trustee. Upon such substitution, the
Substitute Mortgage Loan or Loans shall be subject to the terms of this
Agreement in all respects, and the Seller shall be deemed to have made with
respect to such Substitute Mortgage Loan or Loans, as of the date of
substitution, the representations and warranties made pursuant to Schedule B to
the MLPA with respect to such Mortgage Loan. Upon any such substitution and the
deposit to the Certificate Account of the amount required to be deposited
therein in connection with such substitution as described in the following
paragraph, the Trustee shall release or shall cause the Custodian to release the
Mortgage File held for the benefit of the Certificateholders relating to such
Deleted Mortgage Loan to the Seller and shall execute and deliver at the
Seller's direction such instruments of transfer or assignment prepared by the
Seller, in each case without recourse, as shall be necessary to vest title in
the Seller, or its designee, the Trustee's interest in any Deleted Mortgage Loan
substituted for pursuant to this Section 2.3.



                                       41
<PAGE>

         For any month in which the Seller substitutes one or more Substitute
Mortgage Loans for one or more Deleted Mortgage Loans, the Master Servicer will
determine the amount (if any) by which the aggregate principal balance of all
such Substitute Mortgage Loans as of the date of substitution is less than the
aggregate Stated Principal Balance of all such Deleted Mortgage Loans (after
application of the scheduled principal portion of the monthly payments due in
the month of substitution). The amount of such shortage (the "Substitution
Adjustment Amount") plus an amount equal to the aggregate of any unreimbursed
Advances with respect to such Deleted Mortgage Loans shall be deposited in the
Certificate Account by the Seller on or before the Distribution Account Deposit
Date for the Distribution Date in the month succeeding the calendar month during
which the related Mortgage Loan became required to be purchased or replaced
hereunder.

         In the event that the Seller shall have repurchased a Mortgage Loan,
the Purchase Price therefor shall be deposited in the Certificate Account
pursuant to Section 3.5 on or before the Distribution Account Deposit Date for
the Distribution Date in the month following the month during which the Seller
became obligated hereunder to repurchase or replace such Mortgage Loan and upon
such deposit of the Purchase Price, the delivery of the Opinion of Counsel
required by Section 2.5 and receipt of a Request for Release in the form of
Exhibit M hereto, the Trustee shall release or shall cause the Custodian to
release the related Mortgage File held for the benefit of the Certificateholders
to such Person, and the Trustee shall execute and deliver or shall cause the
Custodian to execute and deliver at such Person's direction such instruments of
transfer or assignment prepared by such Person, in each case without recourse,
as shall be necessary to transfer title from the Trustee. It is understood and
agreed that the obligation under this Agreement of the Seller to cure,
repurchase or replace any Mortgage Loan as to which a breach has occurred and is
continuing shall constitute the sole remedy against the Seller respecting such
breach available to Certificateholders, the Depositor or the Trustee on their
behalf.

         After giving effect to the sale of the Certificates by the Depositor to
the Underwriter, and thereafter, so long as any Certificates remain outstanding,
the Seller, its affiliates and agents, collectively, shall not beneficially own
Certificates the aggregate fair value of which would represent 90% or more of
the beneficial interests in the Trust Fund.

         The representations and warranties made pursuant to this Section 2.3
shall survive delivery of the respective Mortgage Files to the Trustee or the
Custodian for the benefit of the Certificateholders.

                                       42
<PAGE>

            SECTION 2.4 Representations and Warranties of the Depositor as to
the Mortgage Loans.

         The Depositor hereby represents and warrants to the Trustee with
respect to each Mortgage Loan as of the date hereof or such other date set forth
herein that as of the Closing Date, and following the transfer of the Mortgage
Loans to it pursuant to the MLPA and immediately prior to the conveyance of the
Mortgage Loans by it to the Trustee pursuant to Section 2.1(a) hereof, the
Depositor had good title to the Mortgage Loans and the Mortgage Notes were
subject to no offsets, defenses or counterclaims.

         It is understood and agreed that the representations and warranties set
forth in this Section 2.4 shall survive delivery of the Mortgage Files to the
Trustee. Upon discovery by the Depositor or the Trustee of a breach of any of
the foregoing representations and warranties set forth in this Section 2.4
(referred to herein as a "breach"), which breach materially and adversely
affects the interest of the Certificateholders, the party discovering such
breach shall give prompt written notice to the others and to each Rating Agency.

SECTION 2.5 Delivery of Opinion of Counsel in Connection with Substitutions.

      (a)    Notwithstanding any contrary provision of this Agreement, no
            substitution pursuant to Section 2.2 or Section 2.3 shall be made
            more than 90 days after the Closing Date unless the Depositor
            delivers to the Trustee an Opinion of Counsel, which Opinion of
            Counsel shall not be at the expense of either the Trustee or the
            Trust Fund, addressed to the Trustee, to the effect that such
            substitution will not (i) result in the imposition of the tax on
            "prohibited transactions" on the Trust Fund or contributions after
            the Startup Date, as defined in Sections 860F(a)(2) and 860G(d) of
            the Code, respectively, or (ii) cause any REMIC created hereunder to
            fail to qualify as a REMIC at any time that any Certificates are
            outstanding.

      (b)    Upon discovery by the Depositor, the Master Servicer or the Trustee
            that any Mortgage Loan does not constitute a "qualified mortgage"
            within the meaning of Section 860G(a)(3) of the Code, the party
            discovering such fact shall promptly (and in any event within five
            (5) Business Days of discovery) give written notice thereof to the
            other parties. In connection therewith, the Trustee shall require
            the Depositor to cause the Seller, pursuant to the MLPA and at the
            Seller's option, to either (i) substitute, if the conditions in
            Section 2.3(b) with respect to substitutions are satisfied, a
            Substitute Mortgage Loan for the affected Mortgage Loan, or (ii)
            repurchase the affected Mortgage Loan within 90 days of such
            discovery in the same manner as it would a Mortgage Loan for a
            breach of representation or warranty made pursuant to Section 2.3.
            The Trustee shall reconvey or shall cause the Custodian to reconvey
            to the Seller the Mortgage Loan to be released pursuant hereto in
            the same manner, and on the same terms and conditions, as it would a
            Mortgage Loan repurchased for breach of a representation or warranty
            contained in Section 2.3.

                                       43
<PAGE>

            SECTION 2.6 Execution and Delivery of Certificates.

         The Trustee acknowledges the transfer and assignment to it of the Trust
Fund and, concurrently with such transfer and assignment, has executed and
delivered to or upon the order of the Depositor, the Certificates in authorized
denominations evidencing directly or indirectly the entire ownership of the
Trust Fund. The Trustee agrees to hold the Trust Fund and exercise the rights
referred to above for the benefit of all present and future Holders of the
Certificates and to perform the duties set forth in this Agreement to the best
of its ability, to the end that the interests of the Holders of the Certificates
may be adequately and effectively protected.

            SECTION 2.7 REMIC Matters.

         The Preliminary Statement sets forth the "latest possible maturity
date" for federal income tax purposes of all REMIC regular interests created
hereby.

         The assets of the Lower REMIC shall be as set forth in the definition
thereof. Each interest identified in the first table below by a designation
beginning with "L" shall be a "regular interest" in the Lower REMIC and a Lower
REMIC Interest, and the RL Interests shall be the sole class of residual
interest in the Lower REMIC. The Lower REMIC Interests shall be uncertificated
and shall be held by the Trustee as assets of the Upper REMIC.

         The assets of the Upper REMIC shall be as set forth in the definition
thereof. The Regular Certificates shall represent "regular interests" in the
Upper REMIC. The RU Interest shall be the sole class of residual interest in the
Upper REMIC. The Class I-A-R Certificate shall represent ownership of the RL
Interest and RU Interest.

         The "Startup Day" for purposes of the REMIC Provisions for each REMIC
hereunder shall be the Closing Date. The Tax Matters Person with respect to each
REMIC hereunder shall be the Trustee and the Trustee shall hold the Tax Matters
Person Certificate. Each REMIC's taxable year shall be the calendar year and its
accounts shall be maintained using the accrual method.

<TABLE>
<CAPTION>
------------------ ---------------------- -------------------------- ----------------------------------------
   Lower REMIC                                                           Corresponding Class of Upper REMIC
   Interest or           Lower REMIC               Lower REMIC                              Interests
    Residual           Interest Balance           Interest Rate                                      
------------------ ---------------------- -------------------------- ----------------------------------------
                                                                            Interest             Principal
------------------ ---------------------- -------------------------- ------------------------ ---------------
<S>                 <C>                                 <C>                        <C>                  <C>
L-I-A-1             $         15,050.65                 (2)                        (1)                  (1)
------------------ ---------------------- -------------------------- ------------------------ ---------------
L-I-A-2             $          1,672.29                 (2)                        (1)                  (1)
------------------ ---------------------- -------------------------- ------------------------ ---------------
L-I-A-ZZZ            $     26,109,671.99                 (2)                        (1)                  (1)
------------------ ---------------------- -------------------------- ------------------------ ---------------
RL                  $              0.00                 N/A                        N/A                  N/A
------------------ ---------------------- -------------------------- ------------------------ ---------------
L-II-A-1            $        131,154.25                 (3)                        (1)                   (1)
------------------ ---------------------- -------------------------- ------------------------ ---------------
L-II-A-2            $         14,572.69                 (3)                        (1)                  (1)
------------------ ---------------------- -------------------------- ------------------------ ---------------
L-II-A-ZZZ          $    227,559,967.20                 (3)                        (1)                  (1)
------------------ ---------------------- -------------------------- ------------------------ ---------------
L-III-A-1           $         44,547.98                 (4)                        (1)                  (1)
------------------ ---------------------- -------------------------- ------------------------ ---------------
L-III-A-2            $          4,949.78                 (4)                        (1)                  (1)
------------------ ---------------------- -------------------------- ------------------------ ---------------
L-III-A-ZZZ         $     77,286,278.04                 (4)                        (1)                  (1)
------------------ ---------------------- -------------------------- ------------------------ ---------------
                   $    331,167,864.87                                 Total
------------------ ---------------------- -------------------------- ------------------------ ---------------
</TABLE>

                                       44
<PAGE>


(1) The Lower REMIC Interest L-I-A-1, Lower REMIC Interest L-I-A-2 and Lower
REMIC Interest L-I-A-ZZZ shall be Corresponding Classes to these Classes of
Certificates: I-A-1, I-A-2, I-A-R, B-1, B-2, B-3, B-4, B-5 and B-6 (provided
that with respect to B-1, B-2, B-3, B-4, B-5 and B-6, such Lower REMIC Interests
shall only correspond to the portion supported by Pool I). The Lower REMIC
Interest L-II-A-1, Lower REMIC L-II-A-2 and Lower REMIC Interest L-II-A-ZZZ
shall be Corresponding Classes to these Classes of Certificates: II-A-1, B-1,
B-2, B-3, B-4, B-5 and B-6 (provided that with respect to B-1, B-2, B-3, B-4,
B-5 and B-6, such Lower REMIC Interests shall only correspond to the portion
supported by Pool II). The Lower REMIC Interest L-III-A-1, Lower REMIC L-III-A-2
and Lower REMIC Interest L-III-A-ZZZ shall be Corresponding Classes to these
Classes of Certificates: III-A-1, III-A-2, B-1, B-2, B-3, B-4, B-5 and B-6
(provided that with respect to B-1, B-2, B-3, B-4, B-5 and B-6, such Lower REMIC
Interests shall only correspond to the portion supported by Pool III).

(2) The Lower REMIC Interest Rate for the Lower REMIC Interest L-I-A-1, L-I-A-2
and L-I-A-ZZZ will equal the Weighted Average Adjusted Net Mortgage Rate for
Pool I.

(3) The Lower REMIC Interest Rate for the Lower REMIC Interest L-II-A-1,
L-II-A-2 and L-II-A-ZZZ will equal the Weighted Average Adjusted Net Mortgage
Rate for Pool II.

(3) The Lower REMIC Interest Rate for the Lower REMIC Interest L-III-A-1,
L-III-A-2 and L-III-A-ZZZ will equal the Weighted Average Adjusted Net Mortgage
Rate for Pool III.

         "L1 Interests" refers to the L-I-A-1 Lower REMIC Interest, the L-II-A-1
Lower REMIC Interests and L-III-A-1 Lower REMIC Interests. "L2 Interests" refers
to the L-I-A-2 Lower REMIC Interest, L-II-A-2 Lower REMIC Interest and L-III-A-2
Lower REMIC Interest. "LZZZ Interests" refers to L-I-A-ZZZ Lower REMIC Interest,
L-II-A-ZZZ Lower REMIC Interest and L-III-A-ZZZ Lower REMIC Interest. Each L1
Interest shall have a principal balance initially equal to 0.9% of the Group
Subordinate Amount of its corresponding Mortgage Pool. Each L2 Interest shall
have a principal balance initially equal to 0.1% of the Group Subordinate Amount
of its corresponding Mortgage Pool. The initial principal balance of each LZZZ
Interest shall equal the excess of the Pool Principal Balance of its
corresponding Mortgage Pool over the sum of the initial principal balances of
the L1 Interests and L2 Interests corresponding to such Mortgage Pool.

         Unless a Cross-over Situation (as defined below) exists, principal and
Realized Losses arising with respect to each Mortgage Pool shall be allocated
first to cause the L1 and L2 Interests corresponding to such Mortgage Pool to
equal 0.9% and 0.1% of the Group Subordinate Amount of such Mortgage Pool as of
such Distribution Date (after distributions of principal and allocation of
Realized Losses are made) and all excess principal and Realized Losses shall be
allocated to the LZZZ Interest corresponding to such Mortgage Pool. A L1, L2 or
LZZZ Interest that is allocated principal on any Distribution Date shall receive
such principal, and have its principal balance reduced by the amount of such
principal, on such Distribution Date. Similarly, a L1, L2 or LZZZ Interest that
is allocated a Realized Loss on any Distribution Date shall have its principal
balance reduced by the amount of such Realized Loss on such Distribution Date.

                                       45
<PAGE>

         A "Cross-over Situation" exists if on any Distribution Date (after
taking into account distributions of principal and allocations of Realized
Losses on such Distribution Date) the L1 and L2 Interests corresponding to any
Mortgage Pool are in the aggregate less than 1% of the Group Subordinate Amount
of the corresponding Mortgage Pool. If a Cross-over Situation exists on any
Distribution Date, and the weighted average interest rate of the outstanding L1
and L2 Interests is less than the Pass-Through Rate for any Class of Subordinate
Certificates for the following Distribution Date, a Principal Reallocation
Payment (as defined below) shall be made proportionately to the outstanding L1
Interests prior to any other distributions of principal from each such Mortgage
Pool so that the Calculation Rate equals the Pass-Through Rate for each Class of
Subordinate Certificates. If a Cross-over Situation exists on any Distribution
Date, and the weighted average rate of the outstanding L1 and L2 Interests is
greater than the Pass-Through Rate for any Class of Subordinate Certificates for
the following Distribution Date, a Principal Reallocation Payment shall be made
proportionately to the outstanding L2 Interests prior to any other distributions
of principal from each such Mortgage Pool so that the Calculation Rate equals
the Pass-Through Rate for each Class of Subordinate Certificates. A "Principal
Reallocation Payment" is a distribution of the minimum amount of principal that
causes the Calculation Rate (as defined below) with respect to the outstanding
L1 and L2 Interests to equal the Pass-Through Rate for each Class of Subordinate
Certificates. The "Calculation Rate" shall equal the product of (i) 10 and (ii)
the weighted average interest rate of the outstanding L1 and L2 Interests,
treating each L1 Interest as capped at zero or reduced by a fixed percentage of
100% of the interest accruing on such class. Principal Reallocation Payments
shall be made from principal received on the Mortgage Loans from a Mortgage Pool
and shall also consist of a proportionate allocation of Realized Losses from the
Mortgage Loans of a Mortgage Pool. For purposes of making Principal Reallocation
Payments, to the extent that the principal received during the applicable
collection period from the related Mortgage Pool and related Realized Losses are
insufficient to make the necessary reduction of principal, then interest shall
accrue on the LZZZ Interest (and be added to its principal balance) of the
related Mortgage Pool to allow the necessary Principal Reallocation Payment to
be made. The Calculation Rate is designed to always equal the Pass-Through Rate
of each Class of Subordinated Certificates.

          If a Cross-over Situation exists, the aggregate principal balances of
the outstanding L1 and L2 Interests of all of the Mortgage Pools shall not be
reduced below one percent of the aggregate Pool Principal Balance of all of the
Mortgage Pools for the following Distribution Date in excess of the Senior
Certificates as of the related Distribution Date (after taking into account
distributions of principal and allocations of Realized Losses on such
Distribution Date). To the extent this limitation prevents the distribution of
principal to the L1 and L2 Interests of a Mortgage Pool and the related LZZZ
Interest has already been reduced to zero, such excess principal from such
Mortgage Pool shall be paid proportionately to the LZZZ Interests of the
Mortgage Pool or Pools whose aggregate L1 and L2 Interests are less than one
percent of the Group Subordinate Amount. Any such shortfall as a result of the
Mortgage Pool receiving the extra payment having a Weighted Average Adjusted Net
Mortgage Rate lower than the Weighted Average Adjusted Net Mortgage Rate of the
Mortgage Pool from which the payment was reallocated shall be treated as a
Realized Loss and if excess arises as result of the Mortgage Pool receiving the
extra payment having a Weighted Average Adjusted Net Mortgage Rate higher than
the Mortgage Pool from which the payment was reallocated it shall reimburse the
Upper REMIC for prior Realized Losses. If on any Distribution Date, the L1
Interest or L2 Interest remains outstanding after the related Pool Principal
Balance is at zero as of the beginning of the Accrual Period corresponding to
such Distribution Date, their Lower REMIC Interest Rate shall be the Weighted
Average Adjusted Net Mortgage Rate of the Mortgage Pool with the lowest Weighted
Average Adjusted Net Mortgage Rate that remains outstanding and the excess of
interest at the Pass-Through Rate for the Subordinated Certificates over
interest at such Weighted Average Adjusted Net Mortgage Rate shall be treated as
paid from Lower REMIC to the Upper REMIC as reimbursement for prior Realized
Losses.

                                       46
<PAGE>

         The foregoing REMIC structure is intended to cause all of the cash from
the Mortgage Loans to flow through to the Upper REMIC as cash flow on a REMIC
regular interest, without creating any shortfall-actual or potential (other than
for credit losses) to any REMIC regular interest. To the extent that the
structure is believed to diverge from such intention the Trustee shall resolve
ambiguities to accomplish such result and shall to the extent necessary rectify
any drafting errors or seek clarification to the structure without
Certificateholder approval (but with guidance of counsel) to accomplish such
intention.

            SECTION 2.8 Covenants of the Master Servicer.

         The Master Servicer hereby covenants to the Depositor and the Trustee
as follows:

      (a)    the Master Servicer shall comply in the performance of its
            obligations under this Agreement with all reasonable rules and
            requirements of the insurer under each Required Insurance Policy;
            and

      (b)    no written information, certificate of an officer, statement
            furnished in writing or written report delivered to the Depositor,
             any affiliate of the Depositor or the Trustee and prepared by the
            Master Servicer pursuant to this Agreement will contain any untrue
            statement of a material fact or omit to state a material fact
            necessary to make such information, certificate, statement or report
            not misleading.

                                  ARTICLE III
                 ADMINISTRATION AND SERVICING OF MORTGAGE LOANS

            SECTION 3.1 Master Servicer to Service Mortgage Loans.

         For and on behalf of the Certificateholders, the Master Servicer shall
service and administer the Mortgage Loans in accordance with the terms of (i)
the Servicing Rights Transfer and Subservicing Agreement, pursuant to which
First Tennessee Mortgage Services, Inc. engaged the Master Servicer to
subservice the Mortgage Loans, (ii) this Agreement and (iii) the customary and
usual standards of practice of prudent mortgage loan servicers; provided that if
there is a conflict between the terms of the Servicing Agreement and the
Servicing Rights Transfer and Subservicing Agreement, on the one hand, and this
Agreement, on the other hand, the terms of this Agreement shall prevail. In
connection with such servicing and administration, the Master Servicer shall
have full power and authority, acting alone and/or through Subservicers as
provided in Section 3.2 hereof, to do or cause to be done any and all things
that it may deem necessary or desirable in connection with such servicing and
administration, including but not limited to, the power and authority, subject
to the terms hereof (i) to execute and deliver, on behalf of the
Certificateholders and the Trustee, customary consents or waivers and other
instruments and documents, (ii) to consent to transfers of any Mortgaged
Property and assumptions of the Mortgage Notes and related Mortgages (but only
in the manner provided in this Agreement), (iii) to collect any Insurance
Proceeds and other Liquidation Proceeds, and (iv) to effectuate foreclosure or
other conversion of the ownership of the Mortgaged Property securing any
Mortgage Loan; provided that the Master Servicer shall not take any action that
is inconsistent with or prejudices the interests of the Trust Fund or the
Certificateholders in any Mortgage Loan or the rights and interests of the
Depositor, the Trustee and the Certificateholders under this Agreement. The
Master Servicer shall represent and protect the interests of the Trust Fund in
the same manner as it protects its own interests in mortgage loans in its own
portfolio in any claim, proceeding or litigation regarding a Mortgage Loan, and
shall not make or permit any modification, waiver or amendment of any Mortgage
Loan which would cause any REMIC created hereunder to fail to qualify as a REMIC
or result in the imposition of any tax under Section 860F(a) or Section 860G(d)
of the Code. Without limiting the generality of the foregoing, the Master
Servicer, in its own name or in the name of the Depositor and the Trustee, is
hereby authorized and empowered by the Depositor and the Trustee, when the
Master Servicer believes it appropriate in its reasonable judgment, to execute
and deliver, on behalf of the Trustee, the Depositor, the Certificateholders or
any of them, any and all instruments of satisfaction or cancellation, or of
partial or full release or discharge and all other comparable instruments, with
respect to the Mortgage Loans, and with respect to the Mortgaged Properties held
for the benefit of the Certificateholders. The Master Servicer shall prepare and
deliver to the Depositor and/or the Trustee such documents requiring execution
and delivery by either or both of them as are necessary or appropriate to enable
the Master Servicer to service and administer the Mortgage Loans to the extent
that the Master Servicer is not permitted to execute and deliver such documents
pursuant to the preceding sentence. Upon receipt of such documents, the
Depositor and/or the Trustee shall execute such documents and deliver them to
the Master Servicer. The Master Servicer further is authorized and empowered by
the Trustee, on behalf of the Certificateholders and the Trustee, in its own
name or in the name of the Subservicer, when the Master Servicer or the
Subservicer as the case may be, believes it appropriate in its best judgment to
register any Mortgage Loan on the MERS(R) System, or cause the removal from the
registration of any Mortgage Loan on the MERS(R) System, to execute and deliver,
on behalf of the Trustee and the Certificateholders or any of them, any and all
instruments of assignment and other comparable instruments with respect to such
assignment or re-recording of a Mortgage in the name of MERS, solely as nominee
for the Trustee and its successors and assigns.

                                       47
<PAGE>

         In accordance with the standards of the preceding paragraph, the Master
Servicer shall advance or cause to be advanced funds as necessary for the
purpose of effecting the payment of taxes and assessments on the Mortgaged
Properties, which advances shall be reimbursable in the first instance from
related collections from the Mortgagors pursuant to Section 3.6, and further as
provided in Section 3.8. The costs incurred by the Master Servicer, if any, in
effecting the timely payments of taxes and assessments on the Mortgaged
Properties and related insurance premiums shall not, for the purpose of
calculating monthly distributions to the Certificateholders, be added to the
Stated Principal Balances of the related Mortgage Loans, notwithstanding that
the terms of such Mortgage Loans so permit.

            SECTION 3.2 Subservicing; Enforcement of the Obligations of
Servicers.

      (a)    The Master Servicer may arrange for the subservicing of any Mortgage
            Loan by a Subservicer pursuant to a subservicing agreement;
            provided, however, that such subservicing arrangement and the terms
            of the related subservicing agreement must provide for the servicing
            of such Mortgage Loans in a manner consistent with the servicing
            arrangements contemplated hereunder. 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. Notwithstanding the provisions of any subservicing
            agreement, any of the provisions of this Agreement relating to
            agreements or arrangements between the Master Servicer and a
            Subservicer or reference to actions taken through a Subservicer or
            otherwise, the Master Servicer shall remain obligated and liable to
            the Depositor, the Trustee and the Certificateholders for the
            servicing and administration of the Mortgage Loans in accordance
            with the provisions of this Agreement without diminution of such
            obligation or liability by virtue of such subservicing agreements or
             arrangements or by virtue of indemnification from the Subservicer
            and to the same extent and under the same terms and conditions as if
            the Master Servicer alone were servicing and administering the
            Mortgage Loans. All actions of each Subservicer performed pursuant
            to the related subservicing agreement shall be performed as an agent
            of the Master Servicer with the same force and effect as if
            performed directly by the Master Servicer.

                                       48
<PAGE>

      (b)    For purposes of this Agreement, the Master Servicer shall be deemed
            to have received any collections, recoveries or payments with
            respect to the Mortgage Loans that are received by a Subservicer
            regardless of whether such payments are remitted by the Subservicer
            to the Master Servicer.

            SECTION 3.3 Rights of the Depositor and the Trustee in Respect of
the Master Servicer.

          The Depositor may, but is not obligated to, enforce the obligations of
the Master Servicer hereunder and may, but is not obligated to, perform, or
cause a designee to perform, any defaulted obligation of the Master Servicer
hereunder and in connection with any such defaulted obligation to exercise the
related rights of the Master Servicer hereunder; provided that the Master
Servicer shall not be relieved of any of its obligations hereunder by virtue of
such performance by the Depositor or its designee. Neither the Trustee nor the
Depositor shall have any responsibility or liability for any action or failure
to act by the Master Servicer nor shall the Trustee or the Depositor be
obligated to supervise the performance of the Master Servicer hereunder or
otherwise.

            SECTION 3.4 Trustee to Act as Master Servicer.

         In the event that the Master Servicer shall for any reason no longer be
the Master Servicer hereunder (including by reason of an Event of Default), the
Trustee or its successor shall thereupon assume all of the rights and
obligations of the Master Servicer hereunder arising thereafter (except that the
Trustee shall not be (i) liable for losses of the Master Servicer pursuant to
Section 3.9 hereof or any acts or omissions of the predecessor Master Servicer
hereunder), (ii) obligated to make Advances if it is prohibited from doing so by
applicable law, (iii) obligated to effectuate repurchases or substitutions of
Mortgage Loans hereunder including, but not limited to, repurchases or
substitutions of Mortgage Loans pursuant to Section 2.2 or 2.3 hereof, (iv)
responsible for expenses of the Master Servicer pursuant to Section 2.3 or (v)
deemed to have made any representations and warranties of the Master Servicer
hereunder). Any such assumption shall be subject to Section 7.2 hereof. If the
Master Servicer shall for any reason no longer be the Master Servicer (including
by reason of any Event of Default), the Trustee or its successor shall succeed
to any rights and obligations of the Master Servicer under each subservicing
agreement.

                                       49
<PAGE>

         The Master Servicer shall, upon request of the Trustee, but at the
expense of the Master Servicer, deliver to the assuming party all documents and
records relating to each subservicing agreement or substitute subservicing
agreement and the Mortgage Loans then being serviced thereunder and an
accounting of amounts collected or held by it and otherwise use its best efforts
to effect the orderly and efficient transfer of the substitute subservicing
agreement to the assuming party.

            SECTION 3.5 Collection of Mortgage Loan Payments; Certificate
Account; Distribution Account.

      (a)    The Master Servicer shall make reasonable efforts in accordance with
            the customary and usual standards of practice of prudent mortgage
            servicers to collect all payments called for under the terms and
            provisions of the Mortgage Loans to the extent such procedures shall
             be consistent with this Agreement and the terms and provisions of
            any related Required Insurance Policy. Consistent with the
            foregoing, the Master Servicer may in its discretion (i) waive any
            late payment charge or any prepayment charge or penalty interest in
            connection with the prepayment of a Mortgage Loan and (ii) extend
            the due dates for payments due on a Mortgage Note for a period not
            greater than 180 days; provided, however, that the Master Servicer
            cannot extend the maturity of any such Mortgage Loan past the date
            on which the final payment is due on the latest maturing Mortgage
            Loan as of the Cut-off Date. In the event of any such arrangement,
            the Master Servicer shall make Advances on the related Mortgage Loan
            in accordance with the provisions of Section 4.1 during the
            scheduled period in accordance with the amortization schedule of
            such Mortgage Loan without modification thereof by reason of such
            arrangements. The Master Servicer shall not be required to institute
            or join in litigation with respect to collection of any payment
            (whether under a Mortgage, Mortgage Note or otherwise or against any
            public or governmental authority with respect to a taking or
            condemnation) if it reasonably believes that enforcing the provision
            of the Mortgage or other instrument pursuant to which such payment
            is required is prohibited by applicable law.

      (b)    The Master Servicer shall establish and maintain the Certificate
            Account. The Certificate Account shall consist of three separate
            subaccounts, each of which shall relate to a particular Mortgage
            Pool. The Master Servicer shall deposit or cause to be deposited
            into the appropriate subaccount of the Certificate Account no later
            than two Business Days after receipt, except as otherwise
            specifically provided herein, the following payments and collections
            remitted by Subservicers or received by it in respect of the
            Mortgage Loans subsequent to the Cut-off Date (other than in respect
             of principal and interest due on the Mortgage Loans on or before the
            Cut-off Date) and the following amounts required to be deposited
            hereunder:

                                       50
<PAGE>

            (i)    all payments on account of principal on the Mortgage Loans in
                  the related Mortgage Pool, including Principal Prepayments;

            (ii)   all payments on account of interest on the Mortgage Loans in
                  the related Mortgage Pool, net of the related Master Servicing
                  Fee and any Prepayment Interest Excess;

            (iii) all Insurance Proceeds and Liquidation Proceeds in respect of
                  the related Mortgage Loans in the related Mortgage Pool, other
                  than proceeds to be applied to the restoration or repair of
                  the Mortgaged Property or released to the Mortgagor in
                  accordance with the Master Servicer's normal servicing
                  procedures;

             (iv)   any amount required to be deposited by the Master Servicer in
                  respect of the related Mortgage Pool pursuant to Section
                  3.5(c) in connection with any losses on Permitted Investments;

            (v)    any amounts required to be deposited by the Master Servicer in
                  respect of the related Mortgage Pool pursuant to Section
                  3.9(b) and 3.9(d);

            (vi)   all Substitution Adjustment Amounts in respect of the related
                   Mortgage Pool;

            (vii) all Advances in respect of the related Mortgage Pool made by
                  the Master Servicer pursuant to Section 4.1; and

            (viii) any other amounts required to be deposited hereunder in
                   respect of the related Mortgage Pool.

                  In addition, with respect to any Mortgage Loan that is subject
         to a buydown agreement, on each Due Date for such Mortgage Loan, in
         addition to the monthly payment remitted by the Mortgagor, the Master
         Servicer shall cause funds to be deposited into the applicable
         subaccount of the Certificate Account in an amount required to cause an
         amount of interest to be paid with respect to such Mortgage Loan equal
         to the amount of interest that has accrued on such Mortgage Loan from
         the preceding Due Date at the related Adjusted Mortgage Rate on such
         date.

                  The foregoing requirements for remittance by the Master
         Servicer shall be exclusive, it being understood and agreed that,
         without limiting the generality of the foregoing, payments in the
         nature of prepayment penalties, late payment charges, assumption fees
         or amounts attributable to reimbursements of Advances, if collected,
         need not be remitted by the Master Servicer. In the event that the
         Master Servicer shall remit any amount not required to be remitted, it
         may at any time withdraw or direct the institution maintaining the
         Certificate Account to withdraw such amount from the Certificate
         Account, any provision herein to the contrary notwithstanding. Such
         withdrawal or direction may be accomplished by delivering written
         notice thereof to the Trustee or such other institution maintaining the
         Certificate Account which describes the amounts deposited in error in
         the Certificate Account. The Master Servicer shall maintain adequate
         records with respect to all withdrawals made pursuant to this Section.
         All funds deposited in the Certificate Account shall be held in trust
         for the Certificateholders until withdrawn in accordance with Section
         3.8.

                                        51
<PAGE>

      (c)    The Trustee shall establish and maintain, on behalf of the
            Certificateholders, the Distribution Account. The Distribution
            Account shall consist of three separate subaccounts, each of which
             shall relate to a particular Mortgage Pool. The Trustee shall,
            promptly upon receipt, deposit in the Distribution Account and
            retain therein the following:

            (i)    the aggregate amount remitted by the Master Servicer to the
                  Trustee in respect of a Mortgage Pool pursuant to Section
                  3.8(a)(ix);

            (ii)   any amount deposited by the Master Servicer pursuant to this
                  Section 3.5(c) in connection with any losses on Permitted
                  Investments; and

            (iii) any other amounts deposited hereunder which are required to be
                  deposited in the Distribution Account.

                  In the event that the Master Servicer shall remit any amount
         not required to be remitted, it may at any time direct the Trustee to
         withdraw such amount from the applicable subaccount of the Distribution
         Account, any provision herein to the contrary notwithstanding. Such
          direction may be accomplished by delivering an Officer's Certificate to
         the Trustee which describes the amounts deposited in error in the
         Distribution Account. All funds deposited in the Distribution Account
         shall be held by the Trustee in trust for the related
         Certificateholders until disbursed in accordance with this Agreement or
         withdrawn in accordance with Section 3.8. In no event shall the Trustee
         incur liability for withdrawals from the Distribution Account at the
         direction of the Master Servicer.

            (iv)   The institutions at which the Certificate Account and the
                  Distribution Account are maintained shall invest funds as
                  directed by the Master Servicer in Permitted Investments which
                  in both cases shall mature not later than (i) in the case of
                  the Certificate Account, the second Business Day next
                  preceding the related Distribution Account Deposit Date
                  (except that if such Permitted Investment is an obligation of
                  the institution that maintains such account, then such
                  Permitted Investment shall mature not later than the Business
                   Day next preceding such Distribution Account Deposit Date) and
                  (ii) in the case of the Distribution Account, the Business Day
                  next preceding the Distribution Date (except that if such
                  Permitted Investment is an obligation of the institution that
                  maintains such fund or account, then such Permitted Investment
                  shall mature not later than such Distribution Date) and, in
                  each case, shall not be sold or disposed of prior to its
                  maturity. If the Master Servicer does not provide such prior
                  written investment direction, the funds in such accounts will
                  be held uninvested. All such Permitted Investments shall be
                  made in the name of the Trustee, for the benefit of the
                  Certificateholders. All income and gain net of any losses
                  realized from any such investment of funds on deposit in the
                   Certificate Account shall be for the benefit of the Master
                  Servicer as servicing compensation and all income and gain net
                  of any losses realized from any such investment of funds on
                  deposit in the Distribution Account shall be for the benefit
                  of the Trustee. The amount of any Realized Losses in the
                  Certificate Account in respect of any such investments shall
                  promptly be deposited by the Master Servicer in the
                  Certificate Account and the amount of any Realized Losses in
                  the Distribution Account in respect of any such investments
                  shall promptly be deposited by the Trustee into the
                   Distribution Account. All reinvestment income earned on
                  amounts on deposit in the Distribution Account shall be for
                  the benefit of the Trustee. The Trustee in its fiduciary
                  capacity shall not be liable for the amount of any loss
                  incurred in respect of any investment or lack of investment of
                  funds held in the Certificate Account and made in accordance
                  with this Section 3.5.

                                        52
<PAGE>

            (v)    The Master Servicer shall give notice to the Trustee, the
                  Seller, each Rating Agency and the Depositor of any proposed
                  change of the location of the Certificate Account prior to any
                  change thereof. The Trustee shall give notice to the Master
                  Servicer, the Seller, each Rating Agency and the Depositor of
                  any proposed change of the location of the Distribution
                  Account prior to any change thereof.

            SECTION 3.6 Collection of Taxes, Assessments and Similar Items;
Escrow Accounts.

      (a)    To the extent required by the related Mortgage Note and not
            violative of current law, the Master Servicer shall establish and
            maintain one or more accounts (each, an "Escrow Account") and
            deposit and retain therein all collections from the Mortgagors (or
            advances by the Master Servicer) for the payment of taxes,
             assessments, hazard insurance premiums or comparable items for the
            account of the Mortgagors. Nothing herein shall require the Master
            Servicer to compel a Mortgagor to establish an Escrow Account in
            violation of applicable law.

      (b)    Withdrawals of amounts so collected from the Escrow Accounts may be
            made only to effect timely payment of taxes, assessments, hazard
            insurance premiums, condominium or PUD association dues, or
            comparable items, to reimburse the Master Servicer out of related
            collections for any payments made pursuant to Sections 3.1 hereof
            (with respect to taxes and assessments and insurance premiums) and
            3.9 hereof (with respect to hazard insurance), to refund to any
            Mortgagors any sums determined to be overages, to pay interest, if
            required by law or the terms of the related Mortgage or Mortgage
            Note, to Mortgagors on balances in the Escrow Account or to clear
            and terminate the Escrow Account at the termination of this
            Agreement in accordance with Section 9.1 hereof. The Escrow Accounts
            shall not be a part of the Trust Fund.

                                        53
<PAGE>

      (c)    The Master Servicer shall advance any payments referred to in
            Section 3.6(a) that are not timely paid by the Mortgagors on the
            date when the tax, premium or other cost for which such payment is
             intended is due, but the Master Servicer shall be required so to
            advance only to the extent that such advances, in the good faith
            judgment of the Master Servicer, will be recoverable by the Master
            Servicer out of Insurance Proceeds, Liquidation Proceeds or
            otherwise.

            SECTION 3.7 Access to Certain Documentation and Information
Regarding the Mortgage Loans.

         The Master Servicer shall afford the Depositor and the Trustee
reasonable access to all records and documentation regarding the Mortgage Loans
and all accounts, insurance information and other matters relating to this
Agreement, such access being afforded without charge, but only upon reasonable
request and during normal business hours at the office designated by the Master
Servicer.

         Upon reasonable advance notice in writing, the Master Servicer will
provide to each Certificateholder or Certificate Owner which is a savings


 
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