| DEAL NAME | Morgan Stanley Mortgage Loan Trust 2007-4SL |
| Closing Date | 2/28/2007 |
| Collateral Factor Date | 7/1/2007 |
| |
| Performance Summary | |
| Current Pool Factor | 90.81% |
| |
| Delinquency Status (*) | |
| 30+ Days | 5.52% |
| 60+ Days | 3.75% |
| 90+ Days | 2.08% |
| 120+ Days | 0.00% |
| |
| Bankruptcy | 0.00% |
| Foreclosure | 0.00% |
| REO | 0.00% |
| |
| Cumulative Net Loss | 0.00% |
| Loss Severity | 0.00% |
| |
| Prepayment Experience | |
| 1mo CPR | 16.88% |
| 3mo CPR | 19.05% |
| Life CPR | 20.35% |
|