| DEAL NAME | Morgan Stanley Mortgage Loan Trust 2007-4SL |
| Closing Date | 2/28/2007 |
| Collateral Factor Date | 3/1/2009 |
| |
| Performance Summary | |
| Current Pool Factor | 56.95% |
| |
| Delinquency Status (*) | |
| 30+ Days | 36.12% |
| 60+ Days | 31.14% |
| 90+ Days | 26.81% |
| 120+ Days | 0.00% |
| |
| Bankruptcy | 0.00% |
| Foreclosure | 0.00% |
| REO | 0.00% |
| |
| Cumulative Net Loss | 23.07% |
| Loss Severity | 100.00% |
| |
| Prepayment Experience | |
| 1mo CPR | 18.83% |
| 3mo CPR | 22.26% |
| 6mo CPR | 24.50% |
| 9mo CPR | 26.71% |
| 12mo CPR | 26.68% |
| Life CPR | 23.36% |
|