| DEAL NAME | Morgan Stanley Mortgage Loan Trust 2007-4SL |
| Closing Date | 2/28/2007 |
| Collateral Factor Date | 8/1/2009 |
| |
| Performance Summary | |
| Current Pool Factor | 41.99% |
| |
| Delinquency Status (*) | |
| 30+ Days | 25.93% |
| 60+ Days | 22.33% |
| 90+ Days | 18.64% |
| 120+ Days | 0.00% |
| |
| Bankruptcy | 0.00% |
| Foreclosure | 0.00% |
| REO | 0.00% |
| |
| Cumulative Net Loss | 37.41% |
| Loss Severity | 100.00% |
| |
| Prepayment Experience | |
| 1mo CPR | 48.04% |
| 3mo CPR | 46.45% |
| 6mo CPR | 47.26% |
| 9mo CPR | 40.23% |
| 12mo CPR | 37.16% |
| Life CPR | 29.02% |
|