| DEAL NAME | Morgan Stanley Mortgage Loan Trust 2007-4SL |
| Closing Date | 2/28/2007 |
| Collateral Factor Date | 10/1/2008 |
| |
| Performance Summary | |
| Current Pool Factor | 63.94% |
| |
| Delinquency Status (*) | |
| 30+ Days | 25.86% |
| 60+ Days | 21.26% |
| 90+ Days | 17.71% |
| 120+ Days | 0.00% |
| |
| Bankruptcy | 0.00% |
| Foreclosure | 0.00% |
| REO | 0.00% |
| |
| Cumulative Net Loss | 16.85% |
| Loss Severity | 100.00% |
| |
| Prepayment Experience | |
| 1mo CPR | 27.36% |
| 3mo CPR | 31.48% |
| 6mo CPR | 29.54% |
| 9mo CPR | 26.77% |
| 12mo CPR | 24.72% |
| Life CPR | 23.22% |
|