Due Diligence Audits for Mobile Home Park Acquisitions: What to Expect

You have a park under contract. You have the letter of intent signed and the inspection period clock is ticking. Your broker has told you what the NOI is. Your lender wants a copy of the rent roll. And you are realizing you are not entirely sure what your CPA is supposed to be doing right now — or whether they have ever looked at a mobile home park financial package before.

This is the moment when financial due diligence either protects you or fails you. A competent MHP-focused due diligence review is not a formality. It is the analysis that tells you whether the park you are about to buy actually generates what the seller claims — and whether the tax structure of the acquisition is set up to serve your interests from day one.

What Financial Due Diligence on an MHP Actually Involves

Financial due diligence on a mobile home park acquisition is a structured review of the seller’s financial records, designed to verify that the represented income and expenses are accurate, sustainable, and properly classified. It is distinct from physical inspection (which your inspector handles) and from environmental review (which your environmental firm handles).

The financial due diligence process for an MHP has specific components that are unique to the asset class. A general real estate CPA may know how to review a multifamily rent roll, but an MHP financial package includes elements — POH rental income, lot rent income, RUBS billing, utility pass-throughs, POH title status — that require MHP-specific knowledge to evaluate correctly.

Your due diligence audit has two parallel objectives: confirming what you are buying (income verification and quality-of-earnings assessment) and structuring how you are buying it (tax elections, entity structure, purchase price allocation, cost segregation timing).

Documents Requested in MHP Financial Due Diligence

A thorough MHP financial due diligence review typically requires the following documents from the seller:

Three years of federal income tax returns (personal and/or entity, depending on how the park is owned). These show the actual income and expenses reported to the IRS — not just what the seller put on the marketing package. Discrepancies between the tax return and the offering memorandum are the starting point for deeper investigation.

Month-by-month rent rolls for the prior 12-24 months. Not just a current snapshot. The historical rent roll shows occupancy trends, resident turnover, lot rent rate progression, POH rental rates, and whether current occupancy is trending up or down. A high-occupancy snapshot in a declining-trend park is a red flag.

Operating statements (P&L) for the prior 2-3 years, preferably monthly. The P&L should be reconciled against the bank statements — and a CPA should be requesting bank statements to verify that the P&L reflects actual cash activity, not just what the seller prepared for the sale.

Depreciation schedules from the seller’s prior-year tax returns. These reveal how the seller classified the park assets — and whether any misclassification creates a Form 3115 opportunity for the buyer in the year of acquisition.

Utility billing records and RUBS documentation. If the park is on a RUBS (Ratio Utility Billing System) or bills back utilities to residents, the actual utility invoices and billing history must be reviewed to confirm that utility income and expense are properly matched and that the pass-through structure is contractually supported.

POH title documentation. For every park-owned home, the title status must be confirmed. Is the home personal property (certificate of title current and active) or has it been converted to real property? This determines the MACRS classification for the buyer’s depreciation going forward.

Entity documents — operating agreement, ownership structure, any existing debt schedules, and any outstanding liens or encumbrances on the property or individual homes.

What a CPA Looks For in Seller Financials

The due diligence audit is not just a document collection exercise. The analysis that follows the document review is where the real value is created.

Normalized NOI. The seller’s stated NOI often includes non-recurring income items (back-rent payments, insurance proceeds, one-time fees) and excludes non-recurring expenses (a one-time repair that will not repeat). A normalized NOI removes one-time items from both sides to produce a sustainable, run-rate income figure. The normalized NOI is what your cap rate calculation should be based on — not the seller’s marketed NOI.

Expense classification issues. Sellers sometimes classify capital expenses as operating expenses to inflate NOI, or vice versa to manage tax liability. A CPA reviewing the P&L looks for expenses that are unusually low relative to the size of the park (suggesting deferred maintenance), unusually high items that are one-time in nature, and capital-versus-repair questions that could affect the buyer’s depreciation strategy.

Income sustainability. Lot rent increases that just took effect before the sale. POH rental rates that are above market and may not be renewable. Occupancy that has been propped up by month-to-month arrangements with residents who are likely to leave. These are revenue quality issues that affect the sustainability of the income you are paying for.

Entity structure red flags. If the park is held in a pass-through entity with multiple members, the existing operating agreement may create complications for your acquisition structure. If the seller has existing debt secured by the park, the lien release and payoff timing must be confirmed. If there are related-party transactions in the seller’s financials — management fees to a related entity, for example — those must be normalized out of the expense structure.

Common Issues Found in MHP Due Diligence

Experienced MHP CPAs who review acquisitions regularly see the same categories of issues arise again and again. None of these are necessarily deal-killers — but each requires analysis and, often, purchase price adjustment or seller representation.

POH income that is not separated from lot rent income in the financials. This makes it impossible to evaluate the two revenue streams independently and obscures the risk profile of the park (POH income is more volatile and expense-intensive than lot rent from TOH residents).

Utility expenses reported on a net basis — with RUBS billings netted against utility costs — which understates both gross revenue and gross expenses and distorts the NOI margin.

Deferred maintenance that has been classified as normal operating expense (preventing you from capitalizing it on acquisition) or simply not appearing in the financials at all because the seller has been deferring it.

Occupancy representations that do not reconcile with the rent roll. A seller who claims 90% occupancy but whose rent roll shows a significant number of lots with no current income — labeled as “ready to rent” or “long-term vacancy” — may be using a different occupancy definition than you are.

How Due Diligence Findings Affect the Purchase Price

The findings from financial due diligence are not just informational — they are negotiating tools. A normalized NOI that is materially lower than the seller’s represented NOI, at the same cap rate, translates directly to a lower justified purchase price.

Structural issues — misclassified assets, undisclosed liens, POH title problems — may require seller representations and warranties, escrow holdbacks, or price reductions. The leverage created by documented due diligence findings is only available during the inspection period. Once you close, you own whatever you did not discover or negotiate.

Your MHP CPA’s role in due diligence is not just to find problems — it is to quantify them in terms the negotiation can use. A finding that says “utility billing records are inconsistent with P&L” is less useful than a finding that says “utility income appears to be overstated by approximately X% based on three years of utility bills versus stated RUBS income.” Quantified findings support price negotiations. Qualitative observations do not.

For more on how tax strategy interacts with the acquisition process, see our guide to strategic tax planning for MHP owners and our comprehensive MHP due diligence financial checklist. Understanding how cost segregation fits into the acquisition strategy is also essential — see our cost segregation example for mobile home parks.

Frequently Asked Questions

For IRS guidance on income-producing property and business acquisitions, see IRS resources on buying or selling a business.

This content is for educational purposes only and does not constitute tax or legal advice. The MHP Accountant recommends consulting a qualified CPA for advice specific to your situation.