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Fannie Mae Guide for Estimating Affordability and Mission-Driven Business

  • May 2025

This guide outlines how to calculate the percentage of a multifamily loan classified as mission-driven using Fannie Mae’s Affordability Estimators. It details criteria for various property types, including affordable housing, workforce housing, rural areas, and green-certified properties, aiding lenders in aligning with FHFA’s affordability goals.