**HOME
        LOAN**
 **SERVICES**
  **FORM
        OF OFFICER'S CERTIFICATE OF SERVICER**
   **March
        12, 2007**
   Merrill
        Lynch Mortgage Investors, Inc.
 250
        Vesey
        Street
 4
        World
        Financial Center, 10th Floor
 New
        York,
        New York 10080
  LaSalle
        Bank National Association
 Attn:
        Global Securities and Trust Services MLMI 2006-FF1
 135
        South
        LaSalle Street, Suite 1511
 Chicago,
        IL 60603
  Re:
        Merrill Lynch Mortgage Investors Trust, Series 2006-FF1
  Home
        Loan
        Services, Inc., f/k/a National City Home Loan Services, Inc. (the "Servicer")
        certifies to
        the
        Depositor and the Trustee, and their officers, directors and affiliates,
        and
        with the knowledge and intent
        that they will rely upon this certification, that:
  (1)
        I am
        responsible for reviewing the activities performed by the Servicer under
        the
        Pooling and
        Servicing Agreement and I have reviewed, or persons under my supervision
        have
        reviewed, the servicer
        compliance statement of the Servicer and the compliance statements of each
        Subservicer, if any, engaged
        by the Servicer provided to the Depositor and the Trustee for the Issuing
        Entity's fiscal year 2006
        in
        accordance with Item 1123 of Regulation AB (each a "Compliance Statement"),
        the
        report on assessment
        of the Servicer's compliance with the servicing criteria set forth in Item
        1122(d) of Regulation AB
        (the
        "Servicing Criteria") and reports on assessment of compliance with servicing
        criteria for asset- backed
        securities of the Servicer and of each Subservicer, if any, engaged or utilized
        by the Servicer provided
        to the Depositor and the Trustee for the Issuing Entity's fiscal year 2006
        in
        accordance with Rules
        13a-18 and 15d-18 under Securities Exchange Act of 1934, as amended (the
        "Exchange Act") and Item 1122 of Regulation AB (each a "Servicing Assessment"),
        the registered public accounting firm's attestation
        report provided in accordance with Rules 13a-18 and 15d-18 under the Exchange
        Act and Section 1122(b) of Regulation AB related to each Servicing Assessment
        (each a "Attestation Report"), and
        all
        servicing reports, officer's certificates and other information relating
        to the
        servicing of the Mortgage
        Loans by the Servicer during 2006 that were delivered or caused to be delivered
        by the Servicer pursuant to the Agreement (collectively, the "Servicing
        Information");
   **Loan
        Services**
 P.O.
        Box
        1838
 Pittsburgh,
        PA 15230-1838
  **Merrill
        Lynch**
 Home Loan Services is a subsidiary of Merrill Lynch Bank and Trust Co.,
        FSB
  
  (2)  Based
        on
        my knowledge, and assuming the accuracy of the information provided to
        the Servicer
        by third parties in connection with the performance of the Servicer's duties
        under the Pooling and
        Servicing Agreement, the Servicing Information, taken as a whole, does not
        contain any untrue statement
        of a material fact or omit to state a material fact necessary to make the
        statements made, in the light
        of
        the circumstances under which such statements were made, not misleading with
        respect to the period
        of
        time covered by the Servicing Information;
  (3)  Based
        on
        my knowledge, the servicing information required to be provided to the Trustee by
        the
        Servicer pursuant to the Pooling and Servicing Agreement has been provided
        to
        the Trustee;
  (4)  Based
        on
        my knowledge and the compliance review conducted in preparing each Compliance
        Statement of the Servicer and, if applicable, reviewing each Compliance
        Statement of each Subservicer,
        if any, engaged by the Servicer, and except as disclosed in such Compliance
        Statement, the Servicer
        has fulfilled its obligations under the Pooling and Servicing Agreement in
        all
        material respects.
  (5)  Each
        Servicing Assessment of the Servicer and of each Subservicer, if any, engaged
        or utilized
        by the Servicer and its related Attestation Report required to be included
        in
        the Annual Report in accordance
        with Item 1122 of Regulation AB and Exchange Act Rules 13 a-18 and 15d-18
        has
        been provided
        to the Depositor and the Trustee. Any material instances of non-compliance
        are
        described in any
        such
        Servicing Assessment or Attestation Report.
  Date:
        March 12, 2007
  Home
        Loan
        Services, Inc., f/k/a National City Home Loan Services, Inc., as
        Servicer
  By: 
        /s/ Steven A. Baranet
 Name:
        Steven A. Baranet
 Title:
        Vice President
 (Senior
          Officer in charge of the servicing function of the servicer)