Mobile home park investing can deliver exceptional returns — but only if you buy the right property. The difference between a home run and a money pit almost always comes down to due diligence.

After acquiring and managing dozens of mobile home parks across the country, we’ve developed a comprehensive due diligence checklist that covers every critical area. Whether you’re evaluating your first mobile home park or your fiftieth, this guide can help you avoid costly surprises.

1. Infrastructure and Utilities — The Foundation of Value

Infrastructure is where most first-time mobile home park investors get burned. A mobile home park can look great on paper, but if the water lines are failing or the sewer system is a ticking time bomb, you’re buying a liability — not an asset.

Water System

• City water vs. private well: City water is ideal. Private wells require DEQ permits, regular testing, and can be expensive to maintain or replace. A private well system can cost $50,000–$150,000+ to upgrade.
• Water line material: Check if lines are PVC, copper, or outdated galvanized/polybutylene. Galvanized pipes in older properties are a major red flag — replacement can run $3,000–$5,000 per lot.
• Master meter vs. individual meters: Individual meters allow you to bill back water usage to tenants, which can add $30–$60/month per lot in recovered revenue.

Sewer System

• City sewer vs. private: City sewer is the gold standard. Lagoon systems, package treatment plants, and septic systems all carry higher risk and ongoing maintenance costs.
• Lagoon systems: These are the highest-risk sewer type. They require DEQ permits, regular sludge removal ($20,000–$50,000+), and can face regulatory issues that threaten the mobile home park’s viability.
• Septic systems: Individual septic tanks are manageable but require inspection. Community septic fields are a different story — they can be extremely expensive to replace.

Roads

• Public vs. private roads: Public roads maintained by the city/county save you significant ongoing costs. Private roads are your responsibility — repaving can cost $15–$25 per square foot.
• Current condition: Walk every road. Look for potholes, drainage issues, and crumbling edges. Budget accordingly.

2. Financial Analysis — Trust the Numbers, Not the Story

Sellers will always paint a rosy picture. Your job is to verify everything with documentation.

• Trailing 12-month P&L: Request actual bank statements, not just a seller-prepared spreadsheet. Many mom-and-pop operators have incomplete or inaccurate financials.
• Rent roll verification: Get the current rent roll and physically verify occupancy. Drive every lot. Count every home. We’ve seen rent rolls inflated by 10–20% on deals we’ve evaluated.
• Lot rent vs. market: Compare the current lot rent to nearby communities. If there’s a $50–$100/month gap below market, that’s upside. If they’re already at or above market, your value-add play is limited.
• Expense ratio: Well-run properties typically operate at 35–45% expense ratios. If the seller claims 25%, they’re either not reporting all expenses or deferring maintenance.
• Tax returns: Request 2–3 years of Schedule E or business tax returns. These are harder to fabricate than P&L statements.

3. Occupancy and Tenant Quality

A mobile home park’s income is only as stable as its tenants. Understanding who lives in your property is critical.

• Current occupancy rate: Anything above 85% is healthy. Below 70% means significant infill work and marketing investment ahead.
• Park-owned homes (POHs) vs. tenant-owned homes (TOHs): TOHs are preferred — they generate lot rent with minimal maintenance responsibility. POHs require ongoing repairs and management overhead.
• Vacancy duration: How long have empty lots been vacant? Lots empty for 2+ years may have infrastructure issues or be undesirable locations within the mobile home park.
• Tenant payment history: Request a collections report. Chronic delinquency over 8–10% is a warning sign of management issues or a weak tenant base.

4. Market and Location Analysis

You can fix a mobile home park’s operations, but you can’t fix its location.

• Proximity to employment: Mobile home parks within 30 minutes of major employers (hospitals, distribution centers, manufacturing plants) have the most stable demand.
• MSA population: We target properties within an hour of MSAs with 100,000+ people. Smaller markets can work but carry higher vacancy risk.
• Local housing affordability: The wider the gap between apartment rents and your lot rent + home payment, the stronger your value proposition. If a 2BR apartment is $1,200/month and your all-in cost is $700/month, you have a durable competitive moat.
• Supply constraints: Are new permits being issued in the area? In most markets, the answer is no — zoning restrictions make it nearly impossible to build new mobile home parks, which protects your asset’s scarcity value.
• Flood zone: Check FEMA flood maps. Properties in flood zones face insurance challenges and tenant turnover during weather events.

5. Legal and Regulatory Review

Legal issues can kill a deal faster than anything else. Don’t skip this section.

• Zoning confirmation: Verify the property is properly zoned for manufactured housing. Non-conforming or grandfathered zoning means you may not be able to bring in new homes if existing ones leave.
• Rent control: Some states and municipalities have rent control laws that limit your ability to raise lot rents. Know the rules before you buy.
• Title and survey: Get a current survey and title report. Encroachments, easements, and boundary disputes are more common in mobile home parks than you’d think.
• Environmental Phase I: Always order a Phase I Environmental Site Assessment. Prior land uses (gas stations, dry cleaners, agricultural chemicals) can create expensive remediation obligations.
• Tenant leases: Review the standard lease. Are tenants on month-to-month or annual leases? What are the eviction procedures in that state?

6. Physical Inspection — Boots on the Ground

There is no substitute for physically walking the property. Every lot, every road, every utility access point.

• Home condition: Note the condition of every home. Abandoned or severely deteriorated homes cost $3,000–$8,000 to remove.
• Common areas: Evaluate the clubhouse, playground, laundry facilities, and signage. Deferred maintenance here signals how the mobile home park has been managed overall.
• Drainage: Visit during or after rain if possible. Poor drainage causes foundation issues for homes and erodes roads.
• Trees and vegetation: Overgrown trees near power lines or sewer lines are ticking time bombs. Tree removal can cost $1,000–$5,000 per tree.
• Talk to tenants: Knock on doors. Ask about maintenance responsiveness, water quality, and their biggest complaints. Tenants will tell you things the seller never will.

7. Insurance and Risk Assessment

• Current insurance policy: Review the seller’s policy for coverage amounts, exclusions, and claims history.
• Get your own quote: Insurance costs have risen significantly for mobile home parks in recent years. Get a quote from a specialist insurer before closing so you can underwrite accurate expenses.
• Natural disaster risk: Tornado alleys, hurricane zones, and flood plains all impact insurance costs and tenant retention.

8. Management and Transition Planning

• Current management: Is it self-managed by the owner or professionally managed? Transitioning from a hands-on owner-operator to professional management often reveals hidden operational gaps.
• On-site staff: Will existing staff stay? A knowledgeable on-site manager who knows the tenants and systems is extremely valuable during the transition period.
• Vendor relationships: Get a list of all vendors (plumbers, electricians, trash haulers, lawn care). Negotiating better vendor contracts is often one of the easiest post-acquisition wins.

The Bottom Line

Due diligence isn’t just a box to check — it’s the process that separates successful mobile home park investors from those who overpay for problems. Every dollar you spend on thorough due diligence can save you tens of thousands in post-closing surprises.

If you’re interested in learning more about mobile home park investing, we’d love to connect. Reach out to our team and we’ll set up a call to share what we’ve learned from acquiring and managing mobile home parks across the country.