Multifamily Underwriting Standards identifying Pre-ReviewPre-ReviewRequirement that the Lender obtain Fannie Mae’s approval before Rate Lock of a Mortgage Loan. Mortgage LoansMortgage LoansMortgage debt obligation evidenced, or when made will be evidenced, by the Loan Documents, or  a mortgage debt obligation with a Fannie Mae credit enhancement. and containing the minimum underwriting requirements (e.g., debt service coverage ratio, loan to value ratio, interest only, underwriting floors, etc.) for all Mortgage LoansMortgage LoansMortgage debt obligation evidenced, or when made will be evidenced, by the Loan Documents, or  a mortgage debt obligation with a Fannie Mae credit enhancement. .