MHP Agency Debt in 2026: Sized by DSCR, Not LTV

Published September 27, 2026

The 10-year Treasury yield climbed to roughly 5.2% in the final week of September 2026, its highest level since 2007 per CNBC, after the Federal Open Market Committee raised the target range to 3.75%-4.00% on September 16. Stabilized mobile home park (MHP) assets, meanwhile, have generally been trading somewhere in the 5%-7% cap rate band, according to Matthews Real Estate Investment Services' February 2026 market commentary.

Those two facts do not sit comfortably together. A 30-year amortizing loan priced in the low 6s carries an annual debt constant in the mid-7s. When the constant clears the cap rate, the loan stops being sized by Loan-to-Value (LTV) and starts being sized by coverage, and the number that comes back is materially smaller than the one in the model.

Why MHP agency debt now sizes to coverage instead of LTV

Every agency quote runs two tests and takes the lower answer. One is an LTV ceiling, commonly quoted around 75% on stabilized manufactured housing community assets. The other is a Debt Service Coverage Ratio (DSCR) floor, commonly around 1.25x, though both parameters vary by lender, market tier, and asset quality and are worth verifying against a live quote.

For most of the last cycle the LTV test was the binding one, because debt was cheap enough that coverage came along for the ride. That relationship inverts once the debt constant passes the cap rate. Indicative agency sample pricing published by Multi-Family USA showed 10-year fixed stabilized quotes in the 6.00% area during the first week of September 2026, at a spread of roughly 110-140 basis points over the benchmark. Manufactured housing community paper is commonly quoted somewhat wider than conventional apartment paper, and those sample figures predate both the September 16 move and the subsequent rise in the 10-year. Applied to a benchmark near 5.2%, the same 110-140 basis point spread would point to coupons closer to the 6.3%-6.6% area, so live pricing may sit nearer the upper rows of the table below than the lower ones.

At a 6.25% coupon on a 30-year amortization, the annual constant is approximately 7.4%. Against a 6.0% going-in cap rate, that is negative leverage before a single line item is argued about. The mechanics of the coverage test are covered in more depth in the Debt Service Coverage Ratio primer, and the agency programs themselves in the GSE financing guide.

What the agency box rules out before pricing matters

Pricing is the second conversation. The first is whether the park is eligible at all. Fannie Mae's published manufactured housing community terms set out a fairly specific perimeter: a minimum of 50 pad sites, Quality Level 3, 4, or 5 communities only, existing and stabilized and professionally managed, park-owned homes (POH) generally limited to 25%, or up to 35% with a business plan to reduce the share over time, adoption of tenant site lease protections, and origination through a Delegated Underwriting and Servicing lender with manufactured housing experience. Loan terms run 5 to 30 years, non-recourse with standard carve-outs.

Three of those quietly disqualify a large share of the parks that trade. The 50-pad floor removes most of the small-park inventory that changes hands off-market. The Quality Level requirement removes parks with gravel roads, deferred infrastructure, or a heavy share of pre-1976 homes. The POH limit removes the POH-heavy assets whose economics are examined in our post on park-owned home expense and capex and in the park-owned versus tenant-owned homes explainer.

A park outside the box is not unfinanceable. It is bank, credit union, or bridge financeable, generally at wider pricing, shorter terms, and often with recourse. That is a different deal, and it tends to be worth identifying before the offer rather than after the term sheet.

A worked example: 120 lots, and where the proceeds actually land

Take an illustrative park. The figures below are constructed for the example and are not drawn from a specific transaction.

A 120-lot, direct-bill, tenant-owned community, 110 lots occupied at a $450 monthly lot rent. Gross lot rent of roughly $594,000, plus about $18,000 of other income, for approximately $612,000 of revenue. At an assumed 35% expense ratio, which is a plausible level for a direct-bill park with sound infrastructure, operating expenses run roughly $214,000 and Net Operating Income (NOI) lands near $398,000. Call it $400,000. At a price of $6.6M, that is a going-in cap rate of roughly 6.1%.

The LTV test at 75% offers $4.95M. The coverage test offers considerably less. At a 1.25x floor, maximum annual debt service is $320,000, and the loan is whatever $320,000 of debt service buys at the prevailing constant:

At the middle row, the coverage test gives back roughly $620,000 of proceeds against the LTV assumption, and required equity rises from about $1.65M to about $2.27M, an increase of roughly 38%. Levered cash flow after debt service is approximately $80,000, or about 3.5% cash-on-cash on that equity, against a roughly 6.1% unlevered yield. Each 25 basis points of coupon moves proceeds by roughly $115,000-$120,000 on a deal this size.

The line item people miss is that none of this runs on the broker's NOI. Agency underwriting applies its own replacement reserve per pad and a management fee floor, and it underwrites in-place economic occupancy rather than a stabilized figure. If the agency's NOI comes in 5% below the marketed number, at $380,000, the coverage-constrained loan at a 6.25% coupon falls to roughly $4.11M, which is another $220,000 of equity. Reserve and fee conventions vary by lender and by asset, so those are worth pulling from an actual quote rather than assumed.

What tenant site lease protections change, and what they do not

Tenant site lease protections are a condition of the loan, not a rent cap, and the distinction matters for the revenue model. Per Fannie Mae's published requirements, borrowers adopt them within one year of loan delivery: a one-year renewable site lease, 30 days' written notice of rent increases, a five-day grace period on late rent, the right to sell the home in place without relocating it, the right to sublease or assign to a qualified buyer, "for sale" signage rights, 45 days to sell the home after an eviction, and at least 60 days' notice of a planned sale or closure. Fannie Mae notes these apply in states where such protections are not already mandatory.

What they change is timing and mechanics rather than the size of a rent increase. A one-year renewable lease with 30 days' notice means a bump generally phases in across lease anniversaries rather than landing on the whole rent roll at once, which could push part of the first-year revenue gain into year two. The right to sell in place cuts against programs that assume vacated homes revert to the operator as inventory. Where lot rent is separately regulated, those constraints stack with the ones discussed in our post on rent control underwriting. Terms are subject to change, so current requirements are worth confirming with the lender.

There is an offsetting consideration. The Federal Housing Finance Agency set combined 2026 multifamily purchase caps for Fannie Mae and Freddie Mac at $176B, up roughly 20% from 2025, with at least 50% required to be mission-driven. Manufactured housing community lending has historically been treated favorably within that mission-driven framework, which may support both allocation and pricing for parks that meet the protection standards. Classification rules change, so this is worth checking against current lender guidance rather than assumed. The broader cap picture is covered in our post on the 2026 agency caps.

Where this breaks

The whole argument rests on the constant clearing the cap rate, and that is not universal. A park bought at a 7% cap with a 6.25% coupon is back in positive leverage territory, and the LTV test binds again. Premium communities trading in the 4%-5% range, per the Matthews commentary, are in the opposite position and considerably worse than the example above. The deal, not the asset class, decides which test governs.

Interest-only periods are the other complication. A loan with two or three years of interest-only carries a constant equal to its coupon, which pulls the coverage math back toward the LTV answer during the interest-only window and then hands the problem forward to the first amortizing year. Sizing to the interest-only period may look fine and still leave a coverage cliff at the reset. Longer amortization schedules, where available, do something similar in gentler form.

And the sourcing here is uneven by design. The Treasury yield, the policy rate, and the Fannie Mae program terms are primary. The coupon levels are indicative sample rates published by an aggregator rather than live lender quotes, the cap rate band is brokerage commentary, and the DSCR and LTV parameters are conventions rather than published standards. A real quote could differ from every one of them, and the reason to run the arithmetic is to know which input the deal is most sensitive to before the quote arrives.

The Bottom Line

The useful question on a stabilized park in this rate environment is not what LTV the lender allows. It is whether the debt constant sits above or below the going-in cap rate, because that single comparison decides which test writes the check and how much equity the deal actually needs. Where the constant wins, proceeds land closer to 62%-67% of price than 75%, the equity requirement can rise by a third or more, and levered cash-on-cash may sit below the unlevered yield. The eligibility box, the agency's own NOI adjustments, and the lease-anniversary timing of rent increases all push in the same direction. None of it is a reason to avoid agency paper on parks. It is a reason to size the loan before agreeing the price. A fuller treatment of the underlying mechanics sits in the mobile home park underwriting guide.

UWmatic is an AI-powered underwriting platform built for multifamily and mobile home park investors. Run the coverage and Loan-to-Value tests side by side, flag negative leverage before the letter of intent, and stress proceeds against coupon and reserve assumptions — then export a lender-ready package. Try the free underwriting calculator →

Related Reading:

• Agency Lending in 2026: What the $176B Cap Means
• The MHP Expense Lines That Quietly Sink Deals
• Park-Owned Homes: The Expense and Capex Reality
• Rent Control: The New Due-Diligence Frontline for MHPs

This analysis reflects current market interpretations as of the publication date and may evolve as new data becomes available. The 10-year Treasury yield level is as reported by CNBC (September 26, 2026); the policy rate is the Federal Open Market Committee's September 16, 2026 decision. Manufactured housing community eligibility criteria and tenant site lease protections are drawn from Fannie Mae's published multifamily program materials and are subject to change. The 2026 multifamily purchase caps are from the Federal Housing Finance Agency's November 2025 announcement. Cap rate ranges are attributed to Matthews Real Estate Investment Services (February 2026). Coupon levels are indicative sample rates published by Multi-Family USA for early September 2026, not live lender quotes; Debt Service Coverage Ratio and Loan-to-Value parameters are market conventions rather than published standards. The 120-lot park figures are illustrative and are not drawn from a specific transaction. Pricing, sizing parameters, reserve requirements, and program terms vary by lender and change frequently — verify current terms directly with a Delegated Underwriting and Servicing lender. Nothing in this post is investment advice; readers should conduct their own diligence and consult qualified professionals before making investment decisions.