Mobile Home Park Due Diligence: Where Deals Actually Die

Due diligence on an MHP isn’t like due diligence on an apartment building. The risks are different, the verification process is different, and the order in which you investigate matters.

Here’s the order I’d run it in.

1. Financial due diligence first

Before you spend money on engineers or environmental consultants, prove the financials are real.

Reconcile the rent roll against bank deposits. Take the rent roll the seller gave you. Take 12 months of operating account bank statements. They should match — same dollar amounts, same general timing. If they don’t, find out why before you go further. Sloppy bookkeeping is a warning sign about everything else.

Reconcile the T-12 against tax returns. The two- or three-year tax returns should support the operating statement. Inconsistencies need explanations.

Audit the leases. Are they month-to-month, six-month, twelve-month? Are the rents on the leases the same as the rents on the rent roll? Have any tenants been notified of rent increases that haven’t yet taken effect?

Verify a sample of residents directly. Don’t take the rent roll on faith. Call or visit a few residents during your site walk. Confirm they live there, confirm what they pay, confirm how long they’ve been there.

If the seller’s books pass this scrutiny, move forward. If they don’t, walk away — or renegotiate aggressively.

2. Physical infrastructure second

Once the financials hold up, look at what you’re buying physically.

Walk the park with a contractor. Look at water lines, sewer lines, electrical panels, roads, tree cover, drainage. Lift manhole covers. Run water at the most distant pads to check pressure. Look in pump houses and electrical sheds.

Utilities are where the surprises live. A failing water main, a sewer system at capacity, an electrical service that won’t support modern homes — these are the discoveries that turn a deal into a problem after closing. The Property Condition Assessment (PCA) the lender orders will catch big issues, but you should already know what you’re buying by then.

Roads matter more than people think. Internal roads in most parks are private and your responsibility. Repaving a small park can run $50,000–$150,000+. If the roads are gravel and need to be paved, or if they’re paved and need replacement, that’s a capital event you need to plan for.

Common buildings. Clubhouse, laundry, office, maintenance sheds. Each one is a roof, an HVAC system, plumbing, and electrical you’re inheriting.

3. Legal and zoning third

Once you’ve confirmed the asset is what the seller says it is, confirm you can legally operate it.

Zoning. Confirm the park is operating as a legal use, not as a nonconforming or grandfathered use. Grandfathered parks can’t always be expanded, can’t always be rebuilt after a casualty, and may have complications on a sale or refinance.

Survey. An ALTA survey at closing will confirm legal lot lines, easements, encroachments, and boundary issues. Order it early; it sometimes finds problems that take time to resolve.

Title. Pull the title commitment. Read the exceptions. Look for easements that might constrain operations, restrictive covenants, or liens.

Environmental. The Phase I environmental site assessment is required by virtually every lender. Costs typically run $2,000–$5,000 for a standard commercial property. If the Phase I flags a Recognized Environmental Condition — old fuel tanks, neighboring industrial uses, suspect historical activity — a Phase II testing protocol may be required, which can run $25,000+ and take months. Order the Phase I early.

Pending claims. Tenant lawsuits, code enforcement actions, regulatory complaints. Ask the seller directly and check public records.

4. Resident profile fourth

The qualitative due diligence.

Talk to residents during the site visit. Three or four conversations will tell you what you need to know. How long have they been there? Do they like the park? Do they pay on time? How does the current owner treat them? Are there any active complaints?

Look at the demographics. Working families, retirees, mixed? Stable income sources? Long-tenured residents are a good sign — they tend to stay through ownership transitions.

Check the social fabric. Is there a sense of community? Are there community-led problems (drugs, disputes, vandalism)? You’re buying a small neighborhood; the social health of that neighborhood is part of the asset.

Budget and timeline

Plan for:

Phase I environmental: $2,000–$5,000, 3–4 weeks
Commercial appraisal: $4,000–$8,000, 4–6 weeks
Property condition assessment (PCA): $2,000–$5,000, 3–4 weeks
ALTA survey: $3,000–$8,000+, 4–6 weeks (size-dependent)
Title commitment: included in closing costs

Total third-party reports: typically $15,000–$25,000 and 30–45 days for the entire round to complete.

Add to that your travel, legal review, and time. Realistic total due diligence budget on a $2–3M park acquisition: $25,000–$40,000.

What kills deals at this stage

The five most common reasons a deal dies in due diligence:

The financials don’t reconcile. Rent roll doesn’t match bank deposits, T-12 doesn’t match tax returns, or the seller can’t or won’t produce documentation.
The infrastructure surprise. A failing utility system, a contamination issue, or major deferred maintenance the seller didn’t disclose.
The zoning problem. Nonconforming use that can’t be expanded, or a zoning category that limits options on capital improvements.
POH ratio is higher than the OM said. Buyer underwrites at 20% POH; due diligence reveals it’s actually 40%. Financing path changes, price needs to change with it.
Lender bounces the sponsor file. Credit, liquidity, or experience that doesn’t meet the agency standard.

Four of these five are preventable with better preparation. The fifth — the surprise environmental — is genuinely uncontrollable, but mitigated by a clean Phase I early in the process.

If you want a financing-side view of how a specific deal will hold up under lender scrutiny, send me the file when you’re under contract. I’d rather flag a problem at week two of due diligence than at week ten.

→ Next: Financing a Mobile Home Park: What Actually Works

Amy Brown · NMLS #2310281 · NEXA Lending. Commercial financing available nationwide; residential licensure in MD and FL. Educational guidance only; not a commitment to lend. Terms, rates, and program availability subject to change.