Payment Date: 03/25/00


          ------------------------------------------------------------
                   BANK OF AMERICA MORTGAGE SECURITIES, INC.
               MORTGAGE PASS-THROUGH CERTIFICATES, Series 1999-12
                     Bank of America, FSB, Master Servicer
          ------------------------------------------------------------



Class Information                                Current Payment Information

- ----------------------------------------------------------------------------------------------------------------------------------
                                 Beginning       Pass Thru     Principal       Interest      Total           Principal  Interest
Type       Class Code   Name     Cert. Bal.      Rate          Dist. Amt.      Dist. Amt.    Dist.           Losses     Shortfalls
- ----------------------------------------------------------------------------------------------------------------------------------
                                                                                             
Senior                  A1        166,443,034.33    7.500000%       946,804.69  1,040,268.96    1,987,073.66       0.00       0.00
                        A2          3,092,000.00    7.500000%             0.00     19,325.00       19,325.00       0.00       0.00
                        A3          2,542,000.00    7.500000%             0.00     15,887.50       15,887.50       0.00       0.00
                        A4          2,043,000.00    7.500000%             0.00     12,768.75       12,768.75       0.00       0.00
                        A5         10,000,000.00    7.500000%             0.00     62,500.00       62,500.00       0.00       0.00
                        A6         22,500,000.00    7.500000%             0.00    140,625.00      140,625.00       0.00       0.00
                        APO         1,821,180.35    0.000000%         5,053.25          0.00        5,053.25       0.00       0.00
Residual                AR                  0.00    7.500000%             0.00          0.00            0.00       0.00       0.00
- ----------------------------------------------------------------------------------------------------------------------------------
Subordinate             B1          5,838,716.53    7.500000%             0.00     26,670.82       26,670.82       0.00       0.00
                        B2          1,684,456.25    7.500000%             0.00      7,694.47        7,694.47       0.00       0.00
                        B3          1,010,873.33    7.500000%             0.00      4,617.59        4,617.59       0.00       0.00
                        B4            674,580.82    7.500000%             0.00      3,081.43        3,081.43       0.00       0.00
                        B5            450,053.18    7.500000%             0.00      2,055.81        2,055.81       0.00       0.00
                        B6            449,762.08    7.500000%             0.00      2,054.48        2,054.48       0.00       0.00
- ----------------------------------------------------------------------------------------------------------------------------------
- ----------------------------------------------------------------------------------------------------------------------------------
Totals          -        -        218,549,656.87     -              951,857.95  1,337,549.82    2,289,407.76     -          -
- ----------------------------------------------------------------------------------------------------------------------------------
Class Information

- --------------------------------------------------------------------------------
                                             Ending Cert.          Unpaid
Type             Class Code     Name         Notional Bal.         Interest
- --------------------------------------------------------------------------------
Senior                          A1        165,496,229.63              0.00
                                A2          3,092,000.00              0.00
                                A3          2,542,000.00              0.00
                                A4          2,043,000.00              0.00
                                A5         10,000,000.00              0.00
                                A6         22,500,000.00              0.00
                                APO         1,816,127.09              0.00
Residual                        AR                  0.00              0.00
- --------------------------------------------------------------------------------
Subordinate                     B1          5,838,716.53          9,821.16
                                B2          1,684,456.25          2,833.38
                                B3          1,010,873.33          1,700.37
                                B4            674,580.82          1,134.70
                                B5            450,053.18            757.02
                                B6            449,762.08            756.53
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
Totals            -              -        217,597,798.92         17,003.16
- --------------------------------------------------------------------------------



                             Payment Date: 03/25/00


          ------------------------------------------------------------
                   BANK OF AMERICA MORTGAGE SECURITIES, INC.
               MORTGAGE PASS-THROUGH CERTIFICATES, Series 1999-12
                     Bank of America, FSB, Master Servicer
          ------------------------------------------------------------



Class Information                                Current Payment Information

                                                      Factors per $1,000

- ------------------------------------------------------------------------------------------------------------------------
                                   Beginning     Pass Thru    CUSIP       Principal     Interest    Ending Cert./
Type        Class Code    Name   Cert. Bal.(Face)  Rate       Numbers       Dist.         Dist.     Notional Bal.
- ------------------------------------------------------------------------------------------------------------------------
                                                                            
- ------------------------------------------------------------------------------------------------------------------------
Senior                     A1    166,443,034.33     7.500000% 060506KM3     5.476658      6.017289    957.289621
                           A2      3,092,000.00     7.500000% 060506KN1     0.000000      6.250000  1,000.000000
                           A3      2,542,000.00     7.500000% 060506KP6     0.000000      6.250000  1,000.000000
                           A4      2,043,000.00     7.500000% 060506KQ4     0.000000      6.250000  1,000.000000
                           A5     10,000,000.00     7.500000% 060506KR2     0.000000      6.250000  1,000.000000
                           A6     22,500,000.00     7.500000% 060506KS0     0.000000      6.250000  1,000.000000
                           APO     1,821,180.35     0.000000% 060506KT8     2.765981      0.000000    994.086940
Residual                   AR              0.00     7.500000% 060506KU5     0.000000      0.000000      0.000000
- ------------------------------------------------------------------------------------------------------------------------
Subordinate                B1      5,838,716.53     7.500000% 060506KV3     0.000000      4.558335    997.900621
                           B2      1,684,456.25     7.500000% 060506KW1     0.000000      4.558335    997.900621
                           B3      1,010,873.33     7.500000% 060506KX9     0.000000      4.558335    997.900622
                           B4        674,580.82     7.500000% 060506KY7     0.000000      4.558335    997.900625
                           B5        450,053.18     7.500000% 060506KZ4     0.000000      4.558335    997.900627
                           B6        449,762.08     7.500000% 060506LA8     0.000000      4.558335    997.900613
- ------------------------------------------------------------------------------------------------------------------------
- ------------------------------------------------------------------------------------------------------------------------
Totals       -             -     218,549,656.87       -            -           -             -           -
- ------------------------------------------------------------------------------------------------------------------------
- ------------------------------------------------------------------------------------------------------------------------





          ------------------------------------------------------------
                   BANK OF AMERICA MORTGAGE SECURITIES, INC.
               MORTGAGE PASS-THROUGH CERTIFICATES, Series 1999-12
                     Bank of America, FSB, Master Servicer
          ------------------------------------------------------------

- --------------------------------------------------------------------------------
                             COLLATERAL INFORMATION
- --------------------------------------------------------------------------------
                                                             Total
                                                             -----
Aggregated stated principal balance  217,590,704.21   217,590,704.21
Aggregated loan count                           598              598
Aggregated average loan rate              7.962335%             7.96
Aggregated prepayment amount             802,494.99       802,494.99

- --------------------------------------------------------------------------------
                                FEES AND ADVANCES
- --------------------------------------------------------------------------------
                                                             Total
                                                             -----
Monthly master servicing fees             93,276.90        93,276.90
Monthly sub servicer fees                 24,098.59        24,098.59
Monthly trustee fees                         819.56           819.56


Aggregate advances                              N/A              N/A
Advances this periods                          0.00             0.00

- --------------------------------------------------------------------------------
                          LOSSES & INSURANCE COVERAGES
- --------------------------------------------------------------------------------

                                                             Total
                                                             -----
Net realized losses (this period)              0.00             0.00
Cumulative losses (from Cut-Off)               0.00             0.00

Coverage Amounts                                             Total
- ----------------                                             -----
Bankruptcy                                     0.00             0.00
Fraud                                  4,500,274.76     4,500,274.76
Special Hazard                                 0.00             0.00


                         Aggregate Certificate Information
   -----------------------------------------------------------------------------
   Class            Aggregate           Aggregate                     Aggregate
   Type            Percentage           Prepay Pct.              End Cert. Bal.
   -----------------------------------------------------------------------------
   Senior           95.374762%           100.000000%            208,441,214.67
   -----------------------------------------------------------------------------
   Junior            4.625238%             0.000000%             10,108,442.20
   -----------------------------------------------------------------------------

- --------------------------------------------------------------------------------
                          DELINQUENCY INFORMATION
- --------------------------------------------------------------------------------
Period                             Loan Count    Ending Stated Balance
- ------                             ----------    ---------------------
30 to 59 days                           0                         0.00
60 to 89 days                           0                         0.00
90 or more                              0                         0.00
Foreclosure                             0                         0.00

Totals:                                 0                         0.00
- --------------------------------------------------------------------------------



- --------------------------------------------------------------------------------
                                REO INFORMATION
- --------------------------------------------------------------------------------
   REO Date        Loan Number     Ending Stated Balance          Book Value
   --------        -----------     ---------------------          ----------
   N/A              #                   0                            N/A
   N/A              #                   0                            N/A
   N/A              #                   0                            N/A
   N/A              #                   0                            N/A
   N/A              #                   0                            N/A
   N/A              #                   0                            N/A
   N/A              #                   0                            N/A
   N/A              #                   0                            N/A
   Totals:                              0                            N/A

Current Total Outstanding Balance:                                      0.00
Current Total Outstanding Number of Loans:                                 0




- --------------------------------------------------------------------------------
                               OTHER INFORMATION
- --------------------------------------------------------------------------------
                                  Amount/Withdrawal     Total/Ending Bal.
                                  -----------------     -----------------
Available remittance amount            2,289,407.76          2,289,407.76
Principal remittance amount              951,857.95            951,857.95
Interest remittance amount             1,337,549.82          1,337,549.82