FHA Multifamily Loan Limit Adjustment Act of 2003 - Amends the National Housing Act to increase high-cost area and project-based additional mortgage loan limits for Federal Housing Administration (FHA)-insured mortgages for: (1) rental housing; (2) cooperative housing; (3) rehabilitation and neighborhood conservation housing; (4) moderate income and displaced family housing; (5) housing for the elderly; and (6) condominiums.
Increases: (1) "amount per space" rental housing mortgage limits; and (2) certain cooperative housing mortgage limits.