The value of a mortgage servicing portfolio goes beyond simple extrapolations of service fees, costs, and escrow values. These complex assets are driven by a host of consumer and mortgage company behaviors that can have a tremendous impact on values. Additionally, the regulators require certain minimum levels of due diligence in ascribing values to these assets including among others.

• stratification of MSA's based on the predominant risks of impairment,
• consistency of base assumptions from period to period,
• comparability of projected cash flows to actual cash flow performance,
• documentation and annotation of assumptions used and exceptions made.