What Is Fannie Mae Multifamily?

Fannie Mae Multifamily is the multifamily lending arm of the Federal National Mortgage Association (Fannie Mae), a U.S. government-sponsored enterprise (GSE). It is the single largest source of multifamily mortgage capital in the country, financing hundreds of billions of dollars in apartment loans through its network of approved Delegated Underwriting and Servicing (DUS) lenders. See the full Fannie Mae Multifamily guide for a deeper dive. Fannie Mae does not lend directly to borrowers or brokers. Instead, DUS lenders originate, underwrite, close, and service loans under Fannie Mae's guidelines, with each lender sharing in the credit risk of the loans it produces.

How Fannie Mae Multifamily Works

The DUS model is the core of Fannie Mae's multifamily business. Approximately 25 approved DUS lenders operate across the country, including Walker & Dunlop, Berkadia, CBRE Capital Markets, KeyBank, Wells Fargo Multifamily Capital, and others (Source: Fannie Mae DUS lender directory). Each DUS lender has delegated authority to approve loans without Fannie Mae reviewing every deal in advance. In exchange, the lender absorbs a portion of the credit loss if the loan defaults, typically one-third of any losses. This risk-sharing arrangement is what keeps underwriting discipline high across the program.

For brokers, the practical implication is that you are negotiating with the DUS lender, not Fannie Mae directly. Different DUS lenders price differently, have different appetites for property types and markets, and may offer different execution timelines. Shopping a deal across two or three DUS lenders is standard practice and can produce meaningfully different rate and term outcomes on the same property.

Loan Programs and Terms

Fannie Mae offers several multifamily loan programs tailored to different property profiles and borrower needs.

Standard DUS Loans

The bread-and-butter product. Fixed-rate terms range from 5 to 30 years, with amortization up to 30 years. Maximum loan-to-value is generally 80% for market-rate acquisitions and refinances. Minimum DSCR is 1.25x for most property types. Loans are non-recourse with standard carve-outs. Interest-only periods may be available for properties with strong cash flow and low leverage. Prepayment structures include yield maintenance and defeasance, with declining prepayment options available on some executions.

Small Balance Loans

Designed for loans from $750,000 to $6 million, the small balance program offers a streamlined process with lower closing costs, faster timelines, and simplified documentation. This program is a critical tool for brokers working in secondary and tertiary markets where deal sizes are smaller but volume is consistent. Terms are generally 5 to 30 years fixed, with maximum LTV up to 80% and minimum DSCR of 1.25x.

Affordable Housing

Fannie Mae has dedicated affordable housing programs for properties with income restrictions, including LIHTC (Low-Income Housing Tax Credit) properties, Section 8 Housing Assistance Payment (HAP) contracts, and other income-restricted multifamily. These programs may offer higher leverage (up to 85%-90% in some cases), reduced pricing, and flexible terms designed to support preservation of affordable housing stock.

Seniors Housing and Manufactured Housing

Fannie Mae finances seniors housing (independent living, assisted living, and memory care) and manufactured housing communities. Seniors housing underwriting involves additional considerations around operating expenses, regulatory compliance, and occupancy stability. Manufactured housing community financing is based on the land and infrastructure, not the individual units, making it a distinct asset class within the multifamily umbrella.

Why Fannie Mae Matters for Brokers

For commercial mortgage brokers working multifamily deals, Fannie Mae is often the first call for stabilized apartment properties. The combination of long-term fixed rates, non-recourse terms, competitive pricing, and high leverage makes it the benchmark against which other multifamily capital sources are measured. When a client brings you a stabilized 50-unit apartment building, quoting Fannie Mae (and Freddie Mac) is where you start. Then you compare against bank quotes, CMBS, and life company options to find the best execution.

The key limitation is that Fannie Mae is designed for stabilized properties. If the property needs significant renovation, has high vacancy, or is in lease-up, you are looking at a bridge loan or construction loan first, with Fannie Mae as the permanent take-out once the property is stabilized. Understanding where Fannie Mae fits in the capital stack timeline is essential for presenting realistic options to your clients.

Fannie Mae vs. Freddie Mac Multifamily

Both GSEs serve the same market and offer similar products, but they operate through different lender models. Fannie Mae uses the DUS system with delegated authority and lender risk-sharing. Freddie Mac uses the Optigo seller-servicer network. On any given deal, one agency may offer a slightly better rate, more favorable IO terms, or a more accommodating approach to a specific property characteristic. The differences are often marginal but can add up on larger loans. Brokers who quote both agencies on every deal consistently find better execution for their clients. See our full comparison in the Freddie Mac Optigo guide.

Key Metrics for Fannie Mae Underwriting

Fannie Mae underwriting centers on a few core metrics. DSCR must meet a minimum of 1.25x for most property types, meaning the property's net operating income must be at least 125% of annual debt service. LTV cannot exceed 80% on standard acquisitions. The property must demonstrate stabilized occupancy, typically 90% or higher for the trailing 90 days. Borrowers need a net worth equal to or greater than the loan amount and post-closing liquidity of at least nine months of debt service. Use the DSCR calculator and NOI calculator to pre-screen deals before approaching a DUS lender.

Frequently Asked Questions