Fannie Mae DUS: the lender that delegates, and shares the loss

Fannie Mae will not lend you a dollar, and it is the largest multifamily lender in the country. It works by delegation: approved lenders underwrite the loan under Fannie’s rules, keep a slice of the risk themselves, and Fannie buys the loan and turns it into a security. The result, for a stabilized apartment property of five units or more, is some of the cheapest long-term nonrecourse fixed-rate debt available anywhere, and a lender who has real money at stake in your deal, which changes how it behaves. Below five units, none of this exists.

Fannie Mae DUS lenders underwrite under Fannie’s rules and share the loss, then Fannie buys the loan. Nonrecourse, long fixed terms, five units or more, and a lender with skin in your deal.

Delegation, and why it matters to you

DUS stands for Delegated Underwriting and Servicing, and the word delegated is the whole model. Fannie Mae approves a set of lenders and hands them the authority to underwrite and close loans under Fannie’s guidelines without sending each one back for approval. In exchange, the DUS lender keeps a share of the loss if the loan goes bad, usually a first-loss position. That risk-sharing is why a DUS lender is not a pass-through: it is underwriting your deal with its own capital exposed, so it has discretion to say yes to a deal that fits and a real reason to say no to one that does not. Compared with Freddie Mac’s more centralized process, a Fannie lender can move faster and exercise more judgment, because the judgment is its own.

What the loan looks like

The core product is nonrecourse to you, with the standard bad-boy carve-outs, which means the recourse mechanics taught in this pillar apply with full force: the loan is nonrecourse exactly as far as the carve-out schedule lets it be. Terms run from 5 to 30 years fixed, with adjustable and hybrid options, and often a period of interest-only. Amortization is typically 30 years. Leverage runs up to 80 percent of value on a minimum debt-service coverage around 1.25, so the DSCR and debt-yield sizing decides your proceeds. The loans are assumable with lender approval and a fee, which is a real feature on exit. And prepayment leans heavily on yield maintenance, so a mid-term sale or refinance is priced at origination, not negotiated at exit.

Fannie runs a streamlined small-loan program for smaller properties, roughly $1 million to several million, and its standard DUS execution above that. The thresholds shift and vary by lender, so confirm where your deal sizes with a DUS lender rather than assuming.

The five-unit line

This is the fact that routes more investors than any rate. Fannie’s multifamily programs, like Freddie’s and HUD’s, start at five units. A four-unit building is residential lending: different rules, different regulators, personal recourse, shorter fixed periods, and the residential licensing regime. A five-unit building is commercial multifamily: nonrecourse, agency pricing, 30-year fixed availability. The same investor, one unit apart, is in a different legal universe for the debt. An investor choosing between a fourplex and a five-plex is choosing which lending world the property lives in, and the five-unit side is where the cheapest long-term nonrecourse money is.

The 2026 context and the mission requirement

Fannie and Freddie do not lend without limit. The federal regulator sets an annual cap on how much multifamily business each may do; for 2026 that cap was set at $88 billion for each, $176 billion combined, about a fifth above the prior year. At least half of each agency’s business must be mission-driven affordable housing, and loans on workforce housing are excluded from the cap entirely, which makes affordable and workforce deals the ones the agencies most want to fund. Those figures move annually; treat them as a snapshot and confirm the current cap.

The tell that you are at the right lender

You are at the right lender when the property is a stabilized apartment building of five or more units, you want long fixed-rate nonrecourse money, and you can accept a single-asset borrowing entity, yield-maintenance prepayment, and an underwriting process built for an institutional product. You are at the wrong one for anything under five units, anything transitional or in lease-up, or anything you expect to sell within a couple of years. For the long-hold apartment owner, a DUS loan is often the best debt in the market, and the lender’s own skin in the deal is the reason it can offer it.