Exhibit 31.1

           Servicer's Sarbanes-Oxley Certification (1999 Transactions)

                   BANK OF AMERICA MORTGAGE SECURITIES, INC.,
                       MORTGAGE PASS-THROUGH CERTIFICATES,
                      SERIES SET FORTH ON EXHIBIT I HERETO

      I, Gary K. Bettin, a Senior Vice President of Bank of America, N.A.,
certify that:

1.    I have reviewed the annual reports on Form 10-K for the calendar year 2003
      and all monthly current reports on Form 8-K containing a copy of the
      monthly statement to certificateholders (the "Distribution Date
      Statements") delivered pursuant to Section 5.04(a) of the Pooling and
      Servicing Agreements listed on Exhibit I hereto (each, an "Agreement")
      filed in respect of periods included in the year covered by such annual
      reports of the trusts (each, a "Trust") formed pursuant to such
      Agreements;

2.    Based on my knowledge, with respect to each Trust, the information in
      these reports, 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 light of the circumstances under which such statements
      were made, not misleading as of the last day of the period covered by such
      annual report;

3.    Based on my knowledge, the distribution or servicing information required
      to be provided to the trustee by each servicer under each Agreement for
      inclusion in the related Trust's Distribution Date Statements is included
      in these reports;

4.    I am responsible for reviewing the activities performed by each servicer
      under each Agreement and based upon my knowledge and the annual compliance
      review required under each Agreement, and except as disclosed in the
      reports, each servicer has fulfilled its obligations under each Agreement;

5.    The reports disclose all significant deficiencies relating to each
      servicer's compliance with the minimum servicing standards, based upon the
      reports provided by each independent public accountant after conducting a
      review in compliance with the Uniform Single Attestation Program for
      Mortgage Bankers or similar procedure as set forth in the Agreement that
      is included in these reports; and

6.    In giving the certifications above, I have reasonably relied on
      information provided to me by the following unaffiliated party: The Bank
      of New York.


                                             By:    /s/ Gary K. Bettin
                                                -------------------------------
                                                Name:  Gary K. Bettin
                                                Title:    Senior Vice President
<PAGE>


                                                                       EXHIBIT I


<TABLE>
<CAPTION>
                         PARTIES                              DATE OF POOLING AGREEMENT             SERIES
=========================================================== =============================== ========================
<S>                                                         <C>                                     <C>
Bank of America Mortgage Securities, Inc., Bank of          February 23, 1999                       1999-1
America, N.A., BA Mortgage, LLC and The Bank of New York

Bank of America Mortgage Securities, Inc., Bank of          March 25, 1999                          1999-2
America, N.A., BA Mortgage, LLC and The Bank of New York

Bank of America Mortgage Securities, Inc., Bank of          April 27, 1999                          1999-3
America, N.A., BA Mortgage, LLC and The Bank of New York

Bank of America Mortgage Securities, Inc., Bank of          April 27, 1999                          1999-4
America, N.A., BA Mortgage, LLC and The Bank of New York

Bank of America Mortgage Securities, Inc., Bank of          May 25, 1999                            1999-5
America, N.A., BA Mortgage, LLC and The Bank of New York

Bank of America Mortgage Securities, Inc., Bank of          June 24, 1999                           1999-6
America, N.A., BA Mortgage, LLC and The Bank of New York

Bank of America Mortgage Securities, Inc., Bank of          June 24, 1999                           1999-7
America, N.A., BA Mortgage, LLC and The Bank of New York

Bank of America Mortgage Securities, Inc., BA Mortgage,     July 27, 1999                           1999-8
LLC, Bank of America, N.A. and The Bank of New York

Bank of America Mortgage Securities, Inc., BA Mortgage,     August 26, 1999                         1999-9
LLC, Bank of America, N.A. and The Bank of New York

Bank of America Mortgage Securities, Inc., BA Mortgage,     August 26, 1999                         1999-10
LLC, Bank of America, N.A. and The Bank of New York

Bank of America Mortgage Securities, Inc., BA Mortgage,     September 23, 1999                      1999-11
LLC, Bank of America, N.A. and The Bank of New York

Bank of America Mortgage Securities, Inc., BA Mortgage,     November 23, 1999                       1999-12
LLC, Bank of America, N.A. and The Bank of New York
</TABLE>