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|  | Wells      Fargo Home MortgageOne      Home CampusDes      Moines,IA 50328-0001 |
|--|--------------------------------------------------------------------------------------|

|   | Wells Fargo Home      Mortgage               |
|--------|----------------------------------------------|
|   | is a division of      Wells Fargo Bank, N.A. |

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|   |                 |   | Exhibit A             |   |         |   |                                     |
|--------|----------------------|--------|-----------------------|--------|--------------|--------|------------------------------------------|
|   |                 |   |                  |   |         |   |                                     |
|   |                 |   | Transaction      Name |   | Date      of |   | Aurora      Loan Services  As: |
|   | Mortgage Loan Seller |   | and Number            |   | Transaction  |   |                                     |
|   |                 |   |                  |   |         |   |                                     |
| 1      | Lehman               |   | LMT      2007-10      |   | 11/30/2007   |   | ALS      as Master Servicer              |
|   |                 |   |                  |   |         |   |                                     |
| 2      | Lehman               |   | LMT      2007-7       |   | 7/30/2007    |   | ALS      as Master Servicer              |
|   |                 |   |                  |   |         |   |                                     |
| 3      | Lehman               |   | SASCO      2007-BC2   |   | 2/28/2007    |   | ALS      as Master Servicer              |
|   |                 |   |                  |   |         |   |                                     |
| 4      | Lehman               |   | SASCO      2007-BC4   |   | 1/11/2008    |   | ALS      as Master Servicer              |
|   |                 |   |                  |   |         |   |                                     |
| 5      | Lehman               |   | SASCO      2007-BNC1  |   | 10/31/2007   |   | ALS      as Master Servicer              |
|   |                 |   |                  |   |         |   |                                     |
| 6      | Lehman               |   | BNC      2007-1       |   | 2/28/2007    |   | ALS      as Master Servicer              |
|   |                 |   |                  |   |         |   |                                     |
| 7      | Lehman               |   | LXS      2007-1       |   | 1/31/2007    |   | ALS      as Master Servicer              |
|   |                 |   |                  |   |         |   |                                     |
| 8      | Lehman               |   | LXS      2007-11      |   | 6/29/2007    |   | ALS      as Master Servicer              |
|   |                 |   |                  |   |         |   |                                     |
| 9      | Lehman               |   | LXS      2007-3       |   | 2/28/2007    |   | ALS      as Master Servicer              |
|   |                 |   |                  |   |         |   |                                     |
| 10     | Lehman               |   | LXS      2007-6       |   | 5/11/2007    |   | ALS      as Master Servicer              |
|   |                 |   |                  |   |         |   |                                     |
| 11     | Lehman               |   | LXS      2007-9       |   | 5/31/2007    |   | ALS      as Master Servicer              |
|   |                 |   |                  |   |         |   |                                     |
| 12     | Lehman               |   | SARM      2007-09     |   | 9/28/2007    |   | ALS      as Master Servicer              |
|   |                 |   |                  |   |         |   |                                     |
| 13     | Lehman               |   | SASCO      2007-BC3   |   | 5/31/2007    |   | ALS      as Master Servicer              |
|   |                 |   |                  |   |         |   |                                     |
| 14     | Lehman               |   | SASCO      2007-EQ1   |   | 4/30/2007    |   | ALS      as Master Servicer              |
|   |                 |   |                  |   |         |   |                                     |
| 15     | Lehman               |   | SASCO      2007-GEL1  |   | 2/9/2007     |   | ALS      as Master Servicer              |
|   |                 |   |                  |   |         |   |                                     |
| 16     | Lehman               |   | SASCO      2007-GEL2  |   | 5/7/2007     |   | ALS      as Master Servicer              |
|   |                 |   |                  |   |         |   |                                     |
| 17     | Lehman               |   | SASCO      2007-RF1   |   | 3/30/2007    |   | ALS      as Master Servicer              |
|   |                 |   |                  |   |         |   |                                     |
| 18     | Lehman               |   | SASCO      2007-RF2   |   | 11/30/2007   |   | ALS      as Master Servicer              |
|   |                 |   |                  |   |         |   |                                     |
| 19     | Lehman               |   | SASCO      2007-TC1   |   | 6/29/2007    |   | ALS      as Master Servicer              |
|   |                 |   |                  |   |         |   |                                     |
| 20     | Lehman               |   | SASCO      2007-WF1   |   | 3/30/2007    |   | ALS      as Master Servicer              |
|   |                 |   |                  |   |         |   |                                     |
| 21     | Lehman               |   | SASCO      2007-WF2   |   | 8/30/2007    |   | ALS      as Master Servicer              |
|   |                 |   |                  |   |         |   |                                     |
| 22     | Lehman               |   | BNC      2007-1       |   | 2/28/2007    |   | SASCO      as Depositor                  |
|   |                 |   |                  |   |         |   |                                     |
| 23     | Lehman               |   | LMT      2007-10      |   | 11/30/2007   |   | SASCO      as Depositor                  |
|   |                 |   |                  |   |         |   |                                     |
| 24     | Lehman               |   | LMT      2007-7       |   | 7/30/2007    |   | SASCO      as Depositor                  |
|   |                 |   |                  |   |         |   |                                     |
| 25     | Lehman               |   | LXS      2007-1       |   | 1/31/2007    |   | SASCO      as Depositor                  |
|   |                 |   |                  |   |         |   |                                     |
| 26     | Lehman               |   | LXS      2007-11      |   | 6/29/2007    |   | SASCO      as Depositor                  |
|   |                 |   |                  |   |         |   |                                     |
| 27     | Lehman               |   | LXS      2007-3       |   | 2/28/2007    |   | SASCO      as Depositor                  |
|   |                 |   |                  |   |         |   |                                     |
| 28     | Lehman               |   | LXS      2007-6       |   | 5/11/2007    |   | SASCO      as Depositor                  |
|   |                 |   |                  |   |         |   |                                     |
| 29     | Lehman               |   | LXS      2007-9       |   | 5/31/2007    |   | SASCO      as Depositor                  |
|   |                 |   |                  |   |         |   |                                     |
| 30     | Lehman               |   | SARM      2007-09     |   | 9/28/2007    |   | SASCO      as Depositor                  |
|   |                 |   |                  |   |         |   |                                     |
| 31     | Lehman               |   | SASCO      2007-BC2   |   | 2/28/2007    |   | SASCO      as Depositor                  |
|   |                 |   |                  |   |         |   |                                     |
| 32     | Lehman               |   | SASCO      2007-BC3   |   | 5/31/2007    |   | SASCO      as Depositor                  |
|   |                 |   |                  |   |         |   |                                     |
| 33     | Lehman               |   | SASCO      2007-BC4   |   | 1/11/2008    |   | SASCO      as Depositor                  |
|   |                 |   |                  |   |         |   |                                     |
| 34     | Lehman               |   | SASCO      2007-BNC1  |   | 10/31/2007   |   | SASCO      as Depositor                  |
|   |                 |   |                  |   |         |   |                                     |
| 35     | Lehman               |   | SASCO      2007-EQ1   |   | 4/30/2007    |   | SASCO      as Depositor                  |
|   |                 |   |                  |   |         |   |                                     |
| 36     | Lehman               |   | SASCO      2007-GEL1  |   | 2/9/2007     |   | SASCO      as Depositor                  |
|   |                 |   |                  |   |         |   |                                     |
| 37     | Lehman               |   | SASCO      2007-GEL2  |   | 5/7/2007     |   | SASCO      as Depositor                  |
|   |                 |   |                  |   |         |   |                                     |
| 38     | Lehman               |   | SASCO      2007-RF1   |   | 3/30/2007    |   | SASCO      as Depositor                  |
|   |                 |   |                  |   |         |   |                                     |
| 39     | Lehman               |   | SASCO      2007-RF2   |   | 11/30/2007   |   | SASCO      as Depositor                  |
|   |                 |   |                  |   |         |   |                                     |
| 40     | Lehman               |   | SASCO      2007-TC1   |   | 6/29/2007    |   | SASCO      as Depositor                  |
|   |                 |   |                  |   |         |   |                                     |
| 41     | Lehman               |   | SASCO      2007-WF1   |   | 3/30/2007    |   | SASCO      as Depositor                  |
|   |                 |   |                  |   |         |   |                                     |
| 42     | Lehman               |   | SASCO      2007-WF2   |   | 8/30/2007    |   | SASCO      as Depositor                  |

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