Reviewed by Gary E. Wilson, President & Designated Broker · Managing Greater Seattle rentals since 1982
Manufactured home communities are bought on a rent roll and lost on infrastructure. The income is visible, stable and easy to underwrite. The liabilities are buried, undocumented, and frequently unknown to the seller as well as the buyer — which means a seller's honest disclosure and an accurate picture of the asset are not the same thing.
The specific risk in this asset class is that the two largest post-closing surprises are both invisible during a site visit. One is the condition of the buried utilities. The other is which rules and agreements actually bind which residents.
Wilson Management supports acquisition due diligence for manufactured home communities in the Puget Sound region, and takes over operations at closing. For the wider service see Mobile Home Park Management.
Infrastructure: Where the Money Hides
The physical diligence that matters is mostly below ground, and it cannot be done from a walk-around.
Water distribution. Material and age of the mains, the condition of service lines, and whether the valve network still functions. Ask specifically for repair history — the number of main breaks over the last five years predicts the next five better than any other single figure.
The master meter gap. Compare water purchased at the master meter against water billed to sites. A large or growing gap is unbilled consumption, which is either a leak or a recovery failure, and either way it is being paid for by the owner. This is one of the highest-value checks available and it can be done from documents alone. See Utility Infrastructure.
Sewer. Line condition, and any lift stations, their age and their service history. Where a community has had backups, find out where and why.
Roads and drainage. Surface condition is visible; base condition is not. Standing water, ponding after rain, and silted catch basins all point to drainage that has stopped working, which is what destroys roads from beneath.
Electrical. Whether the community distributes power, and the condition and capacity of pedestals and feeders — including whether capacity matches modern demand.
Where possible, this is worth having assessed by people who do it professionally rather than estimated. The cost of assessment is trivial against the cost of being wrong.
The Rent Roll Is Not Just a Number
A rent roll of the right size can still be the wrong rent roll.
In-place rents against market. Below-market rents are frequently presented as upside. They may be — but check what the local market genuinely supports and what increases residents can actually absorb, since a community's rents may be low because its residents' incomes are.
Arrears and their age. Current arrears, how long they have been outstanding, and how they have been handled. A community with old, unworked arrears has both a collection problem and, often, residents who have been allowed to accumulate debt they will never clear.
Concessions and side arrangements. Informal reductions, unrecorded agreements and long-standing accommodations for particular residents. These rarely appear in the rent roll and always survive the sale in the residents' understanding of their own tenancy.
Utility recovery. How it is billed, whether it is compliant, and how much of the actual cost it recovers.
Park-owned homes. These are a different asset with different economics — a depreciating structure with maintenance obligations, not just a lot rent. Their number, condition and status should be established separately from the lot rent roll.
The Rules and Agreements You Inherit
This is the diligence item unique to the asset class, and the one most often skipped.
Because written agreements under the MHLTA renew automatically for the same term including the original park rules, the enforceable rule set for a given resident is frequently the one in force when their tenancy began. A community that has amended its rules informally over decades may have several rule sets running at once.
So the question at diligence is not "what are the rules" but "what rules bind which residents, and can that be evidenced". Ask for the signed rental agreements for every occupied site. Missing agreements are a real finding: a resident with no written agreement is in a different position from one with a signed one, and the Act requires a written agreement signed before move-in.
Entitlements, Permits and Compliance
Permitted site count against actual occupied sites. Communities occasionally operate more sites than they are entitled to, which is a problem that transfers with the property.
Utility permits and any water system status. A community operating its own water source may be a regulated public water system with monitoring, reporting and treatment obligations attached.
Age-restricted status, where claimed, and whether the required occupancy verification and records actually exist.
Zoning and non-conforming status. Many communities are legal non-conforming uses. Understanding what that means for rebuilding after a casualty, or for expansion, matters before closing rather than after.
Environmental. Historic uses, underground storage tanks, and any known contamination.
This page is general information and not legal, environmental or regulatory advice.
Vacant Sites: Upside or Liability
Vacant sites are usually presented as upside, and sometimes they are. The questions that decide it are whether the utility connections at those sites still work, whether the sites meet current standards for setbacks and dimensions, why they have been vacant, and what filling them would actually cost and take.
A site vacant for fifteen years in a community with a waiting list is upside. The same site in a community with no fill demand and a dead service connection is a line on a map.
Taking Over at Closing
The first ninety days set the tone for a tenancy that may last decades, and residents are watching closely — a change of ownership is unsettling for people who cannot move.
The transition that works involves communicating with residents promptly and in person where possible, establishing what the actual rule sets and agreements are, verifying the rent roll against the residents rather than against the seller's spreadsheet, and being visible. Deferred maintenance addressed early buys a great deal of goodwill, and goodwill in a community of long-tenured homeowners is a durable operational asset. See Resident Relations.
Reading the Seller's Numbers
Offering memoranda for these communities follow recognisable conventions, and a few adjustments are worth making before the income figure means anything.
Expenses stated as a percentage rather than from actual invoices usually understate. Ask for the last three years of operating statements and the invoices behind the large lines.
Management costs shown as zero because the seller managed it themselves. That is not a saving transferring to a buyer; it is unpaid labour that has to be priced back in.
Capital treated as expense, or omitted entirely. Roads, mains and lift stations are not operating costs, and a community showing no capital spend across several years is either newly built or deferring.
Utility recovery shown at full cost. Compare recovery against the actual master meter bills rather than accepting the stated figure.
Occupancy stated at a point in time rather than averaged, and vacant sites presented as immediate upside without regard to whether their connections work.
None of these are unusual or dishonest — they are conventions. They simply have to be normalised before the number is comparable to what the community will actually earn under new ownership.
Frequently Asked Questions
What is the highest-value check in the whole process?
Comparing water purchased at the master meter against water billed to sites. A large or growing gap means unbilled consumption — a leak or a recovery failure — and it can be established from documents alone.
Why do the rules matter at diligence?
Because under the MHLTA agreements renew automatically including the original park rules, so the enforceable rules may differ resident by resident. The question is not what the rules say but which ones bind whom, and whether that can be evidenced.
What if some residents have no written agreement?
That is a genuine finding rather than a paperwork gap, since the Act requires a written agreement signed before move-in. Its implications should be confirmed with counsel before closing.
Are below-market rents automatically upside?
Not automatically. Check what the local market supports and what residents can absorb — rents may be low because incomes are, and a plan that ignores that will not survive contact with the community.
How should park-owned homes be treated?
As a separate asset with separate economics. They are depreciating structures with maintenance obligations, not simply additional lot rent.
Are vacant sites worth paying for?
Only if their utility connections work, they meet current standards, and there is genuine fill demand. Otherwise they are a line on a map rather than upside.
What matters most immediately after closing?
Being visible, communicating with residents, establishing the real rule sets and agreements, and addressing obvious deferred maintenance early. In a community of long-tenured homeowners, the first ninety days buy or cost years of goodwill.
Get Started
These communities are bought on income and lost on infrastructure, and the two liabilities that hurt most are both invisible on a site visit. Wilson Management, Inc. supports diligence and takes over operations at closing.
Request a free analysis or contact us. You can also reach our Bellevue office at (425) 453-0089, 1380 112th Ave NE #203, Bellevue, WA 98004.