Landlord Guides

Mobile Home Park Due Diligence: The Verification Checklist

Due diligence on a mobile home park is mostly two investigations: what is buried under the property, and whether the rent roll describes money that actually arrives. Those are the two places a park hides its problems.

The physical plant is what kills deals, and none of it can be assessed from the surface — which is why the length of the inspection window and the specialists you put inside it matter more here than on any other property type.

This checklist is general information, not legal, engineering, or investment advice. Zoning, utility regulation, manufactured-home titling, and resident protections are set by state and local law and vary substantially. Nothing here describes the rule where a particular park sits. Have a local land-use attorney and a qualified engineer review any park before you commit, and speak with a CPA about how the purchase should be structured.

If you are new to the asset class, start with mobile home park investing. It stays inside the inspection window; sourcing, offers, financing, and closing are covered in how to buy a mobile home park.

1. The Utility Investigation

The longest section, because it is the part buyers get wrong. The failure mode is rarely skipping the utilities; it is looking without establishing three facts per system: who owns it, where that ownership stops, and what it is made of. A seller who says the water is "on city" may mean the city delivers to one master meter at the entrance and every foot of pipe past it belongs to the park.

Pipe material deserves its own note. Several materials used across decades of park construction are recognized failure risks, and the difference between a system with thirty years left and one with five is often the material rather than the age. Have lines exposed, identified, and recorded.

Master metering is the other structural question. If the park gets one bill for the whole property, every leak under every home lands on the owner and residents have no reason to report a running toilet. Establish whether a recovery mechanism exists today, because a park without one cannot simply start charging — that takes submetering, a billing process, and compliance with state rules that vary.

System	What to establish	How to verify it	What a bad answer sounds like
Water supply	Municipal or private well; where the provider's responsibility stops and yours begins (master meter, lot line, or home connection); the age and material of the lines; whether lots are individually metered.	Get the utility's written statement of which portion it owns. If the source is a well, ask the state drinking-water agency whether the park is a public water system and pull its sampling and violation history. Expose lines so the material is identified, not assumed.	“The city handles all of that.” No written statement of where the utility's obligation ends. Nobody knows what the lines are made of. A well serves dozens of homes and nobody can name the last sampling date.
Sewer or septic	Public sewer, private septic fields, or a park-owned treatment system; the permit and who holds it; the condition of mains and laterals; the regulatory history, including consent orders or mandated upgrades.	Camera the mains and a sample of laterals — the most informative inspection on the property. Pull the permit and inspection file from the regulator, not the seller. For septic, locate the drain fields on the survey and have a specialist evaluate them.	“It has never given us any trouble.” The permit is expired, in a prior owner's name, or missing. A lagoon or package plant, and the only report offered is a home inspector's. Repeat call-outs to one section of main.
Storm drainage	Where water goes when it rains hard; whether ditches, culverts, and catch basins are open; whether lots or roads sit in a floodplain; whether water stands under homes after a storm.	Walk the property during or right after heavy rain; if the schedule will not allow it, ask residents where it floods. Check the survey against current flood maps, and look under skirting on the low side for water lines.	Silted, brush-filled ditches with no maintenance record. Crushed culverts. Residents describe flooding the disclosure omits.
Electrical distribution	Whether the utility or the park owns distribution inside the property; the age of pedestals, meter bases, and conductors; the amperage delivered to each lot; whether any of it is original.	Have a licensed electrician open a sample of pedestals rather than judging the outsides. Confirm in writing which equipment the utility repairs. Compare delivered amperage against what a modern home needs.	Nobody can say whether the pedestals belong to the park or the power company. Original equipment, no replacement history. Amperage too low for the homes a buyer would put on those lots.
Gas	Whether gas is piped by a utility, distributed by the park through its own lines, supplied from park-owned tanks, or handled by residents — and if the park distributes it, what licensing that carries.	If the park owns lines or tanks, identify the operator of record with the state agency and pull the inspection and leak-survey history. Confirm the insurance carried.	The park distributes gas and treats it as incidental. No inspection records. The seller cannot name the licensed operator.

Plainly: a private wastewater treatment plant or a park-owned septic field is a specialist inspection, not a general home inspector's job. The same goes for a well the state treats as a public water system. These are small utilities with permits, sampling obligations, and regulators. Six figures is not unusual for a wastewater replacement, and it adds no income when finished, which is why it has to be priced before closing rather than discovered after. The EPA's overview of public water systems explains what that classification means.

2. The Rent Roll Audit

The second centerpiece, and the fastest. A rent roll is a claim; the audit tests it against records the seller did not author.

Separate three counts that get blended. Total lots on the survey, lots that could be occupied, and lots occupied by a paying resident are three different numbers. A lot with no working utility connection is not a lot — it is a future capital project. Ask which vacant lots have live connections and verify it physically.
Walk every lot and match occupants to the roll. Not a sample. A name that does not match who answers the door means an unauthorized occupant, a resident who sublet, or a lot carried as occupied.
Identify park-owned versus tenant-owned homes, and confirm titles. For every home the park owns, see the title and confirm it is clean and in the seller's name. Manufactured-home titling is its own process, and clouded titles are a slow surprise.
Reconcile against twelve months of actual bank deposits. The core test. Deposits, not a summary the seller prepared, month by month against the roll for the same month.
Ask directly about concessions and side deals. Reduced rent for the resident who mows the common area, a balance being paid down informally, a promise that one lot's rent will not rise. Rarely written, and they usually survive you.
Find the delinquency that has been quietly carried. A seller under no pressure to collect may have let balances age for a year. Ask for an aging report and test it against the deposits. A resident eight months behind is a legal process you inherit, not a receivable.
Have residents confirm their own terms. An estoppel certificate signed by each occupant states their rent, deposit, and any promises made to them, and it puts the seller's version and the resident's version side by side before you close.

The classic pattern is a roll showing full occupancy while the deposits tell a quieter story. It is not always deliberate — a seller working from a notebook may believe the roll.

Illustrative example — figures invented to show the method

Suppose a 40-lot park presents a roll showing all 40 lots occupied at $400 a month, implying $16,000 collected monthly. The bank statements average closer to $13,600. Walking the lots explains it: three homes are vacant but still listed, two residents are months behind and paying nothing, and one long-time resident has an unwritten reduced rent for maintaining the common area. Nothing was fabricated; the roll describes what should arrive rather than what does. You are buying the second number. These figures are invented to show the method; run yours on the park's records.

The discipline transfers from conventional deals: the habits in buying a house with tenants apply here at forty times the scale, and a resident who is not paying follows the same process after closing.

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3. Zoning and Legal Status

Short section, high stakes. Four questions, answered by the municipality in writing rather than the seller.

Is the use conforming, legal non-conforming, or unpermitted? Some parks predate the code around them; some sit outside it entirely, and the seller may not know which.
How many lots are approved, and could the park be rebuilt at that density if destroyed? Frequently no, and better heard from a planner than an insurer after a fire.
Are there open code violations, consent orders, or agency actions? Ask code enforcement and the health or environmental agency directly, and get the file.
Is the park subject to rent regulation or a local manufactured-housing statute? Several states have laws specific to these communities covering notice periods, rules changes, and sale notification.

Non-conforming status is common and not automatically fatal. What it changes is financing and exit: some lenders price or decline the deal differently, and the next buyer will ask what you are asking now. Price it. Confirm too that insurance is obtainable on your lender's terms, since rebuild restrictions and private utility systems both affect what carriers will write.

4. Physical Plant Beyond the Utilities

Everything above ground, where the items are visible and the judgments quick.

Roads and their base. Surface cracking is cosmetic; a failed base is not. Look for rutting, alligator cracking, and crumbled edges, and ask when the roads were last rebuilt rather than resurfaced.
Standing water and grading. Water pooling near pads or under homes is a structural problem, not a landscaping one.
Tree risk. Mature trees leaning over homes are a liability item with a removal price attached. Count them.
Common-area structures and lighting. Office, laundry, mail kiosk, storage, playground, fencing — each is a building you now maintain. Confirm whether street lighting works and who is billed for it.
Skirting and anchoring across the homes. Missing skirting, corroded or absent tie-downs, and improvised steps are compliance items that become yours, and the pattern tells you how the community has been run.

Document it like any rental property inspection — dated photographs, lot by lot. That record is your negotiating position and the first draft of the maintenance schedule you run afterward.

5. The Documents to Demand

Request these at once, early, and treat slow or partial production as information.

The rent roll. The claim everything else gets tested against.
Every lease and any park rules in force. Inherited leases usually survive the sale, so audit them for term, rent, notice provisions, and anything unusual. Compare against a standard mobile home lot lease agreement to see what is missing from the ones you inherit.
Utility bills for twelve to twenty-four months. Consumption trends reveal leaks nobody mentioned, and establish what is master-metered.
Permits and inspection history for private systems. Water, wastewater, gas — the agency's copy, not the seller's.
A list of park-owned homes with titles. One line per home, title document attached.
Resident correspondence about disputes or conditions. Complaint letters and repair demands are the cheapest map of the park's real problems.
Service contracts. Trash, mowing, snow, pest, septic pumping — what is committed, at what price, and whether it transfers.
The survey. Boundaries, easements, and where the lots and drain fields actually sit, which is often not where everyone believes.

6. Who to Hire

A short list, and the one buyers most often economize on.

A civil or environmental engineer for any private water or wastewater system, including septic fields serving multiple homes.
A surveyor to establish boundaries, easements, and lot positions against the record.
A local land-use attorney to get zoning status, rebuild rights, and any manufactured-housing statute confirmed in writing.
An inspector experienced with manufactured housing rather than a residential one, particularly for setup, anchoring, and skirting.

Saving money here is the most common expensive mistake buyers make. Each engagement is small relative to the price of the park, and each answers a question that costs far more to answer after closing. For federal background on the standards manufactured homes are built to, HUD's Manufactured Housing Programs office is the authoritative starting point. If you are building rather than buying, see how to start a mobile home park; these findings also feed directly into a mobile home park business plan.

After Verification: Operating the Roll You Audited

The roll you spent the inspection window verifying is the thing you then operate. Kelpic is unit-based property management software, so each lot becomes a unit with a resident, a lease, and a recurring monthly lot rent charge, collected online with configurable late-fee rules. From there you can see who is behind and by how many days against the roll you verified, across multiple parks under one login. It is not purpose-built for parks — no home inventory, no utility submetering — but for tenant-owned lots it covers the recurring work. See mobile home park management software, rent collection, and pricing.

The Checklist, In Order

Establish utility ownership and condition. Who owns each system, where responsibility stops, what the lines are made of, what the permit file says.
Audit the roll against deposits. Twelve months of bank records, every lot walked, concessions and delinquency surfaced.
Confirm zoning status in writing. Conforming or not, rebuild rights, open violations, local statute.
Inspect roads and drainage. Base condition, standing water, trees, common structures, skirting.
Demand the documents. Leases, utility bills, permits, titles, correspondence, contracts, survey.
Hire the right specialists. Engineer, surveyor, land-use attorney, manufactured-housing inspector.

Any item still unknown when the inspection period ends is the item to extend for.

Frequently Asked Questions

What should I check when buying a mobile home park?

Six things carry the weight. First, the utility infrastructure: whether water, sewer, electrical, and gas are public or private, where the park's ownership begins, the age and material of the lines, and the permit and violation history of any private system. Second, the rent roll, verified against twelve months of bank deposits. Third, zoning status — conforming, non-conforming, or unpermitted — and what could be rebuilt if the park were destroyed. Fourth, roads and storm drainage. Fifth, the documents: leases, utility bills, permits, titles, and the survey. Sixth, the specialists you hire, because most of the above is outside what a residential inspector can assess.

How long does due diligence take on a mobile home park?

Longer than a residential purchase, and the utility investigation sets the schedule. Municipal record requests, state agency files on a private water or wastewater system, a sewer camera survey, and an engineer's availability are all outside the buyer's control, and any one can take weeks. Negotiate the inspection period against that sequence rather than a familiar number: order records and book the engineer on day one, because their findings often generate follow-up work that has to fit the same window. Buyers who accept a short period and then hit a wastewater question they cannot answer end up extending, walking, or closing on an assumption.

What is the biggest risk in a mobile home park purchase?

Buried infrastructure deferred for decades. Water mains, sewer laterals, and electrical distribution degrade quietly for years and then present as an emergency, and unlike a roof on a duplex there is no small version of the repair — six figures is not unusual for a wastewater system, and it adds no income when finished. It is the biggest risk not because it is most likely but because it is least visible: a park can look immaculate from the road while its lines are at the end of their life. Second is a rent roll that overstates collections, which bank records expose in an afternoon.

How do I verify a mobile home park's rent roll?

Compare the roll against actual bank deposits for at least twelve months, not against the seller's summary. Then reconcile three counts sellers routinely blend: total lots on the survey, lots with a working utility connection, and lots occupied by a paying resident. Walk every lot and confirm who lives there against the roll. Ask for every lease and written concession, then ask what has been agreed verbally, because side deals, deferred balances, and work-for-rent arrangements rarely appear in writing. Estoppel certificates signed by residents let occupants confirm their own rent, deposit, and any promises made to them.

What does it mean if a park is non-conforming?

A legal non-conforming use is one that was lawful when established but no longer complies with the zoning code that came later. The park may keep operating, but the code typically restricts expansion, and many jurisdictions limit or prohibit rebuilding if the use is discontinued or much of the property is destroyed. The status is common and not automatically a reason to walk away. It changes two things materially: some lenders price or decline the deal differently, and a future buyer will hit the same questions, so it affects the exit as much as the entry. Get the municipality's own written characterization, not the seller's.

Do I need a special inspector for a mobile home park?

For the parts that decide the deal, yes. A residential home inspector is trained on houses and is not qualified to evaluate a private water system, a package treatment plant, a septic field serving dozens of homes, or a park's electrical distribution. Those belong to a civil or environmental engineer and a licensed electrician. You also want a surveyor for boundaries and easements, and a local land-use attorney to establish zoning status in writing. For the homes themselves, use an inspector experienced with manufactured housing. Economizing here is the most common expensive mistake buyers make.

Run the Park From the Roll You Verified

Kelpic gives every lot a resident, a lease, and a recurring lot rent charge, collects it online, and shows you who is behind and by how many days — across every park you own, under one login.

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