If you own mobile home parks in more than one state, you are almost certainly out of compliance with at least one rent control law right now. You just don’t know it yet.

That’s not hyperbole. In the past 18 months, at least nine states have enacted or proposed significant new rent control and tenant protection legislation specifically targeting manufactured housing communities. Each law is different. Each has its own cap, its own notice period, its own documentation requirement. And the operators who aren’t paying obsessive attention to this are going to pay for it — not in fines, but in voided rent increases, legal exposure, and permanent revenue loss.

We know because we operate in multiple states. We’ve built systems around this. This article is what we wish someone had handed us two years ago.

The Patchwork Nobody Warned You About

Here’s the current landscape as of mid-2026:

• Washington State capped lot rent increases at 5% annually, with a hard prohibition on any increase in the first 12 months of a tenancy, and a mandatory 90-day notice before any increase.
• New Mexico limits increases to 3% in year one, 5% annually after, and only one increase per 12-month period.
• New Jersey set a 3.5% annual cap without state approval. Want more? You petition the Department of Community Affairs and document your costs.
• Oregon capped increases at 6% for parks with 30+ spaces — but allows up to 12% if tenants vote for it and the increase is tied to infrastructure upgrades.
• Maine caps at CPI+1% or 5%, whichever is less, and only when increases are needed to cover actual documented operating costs.
• Florida (anticipated July 2026) will require park owners to provide invoices and financial evidence to justify any lot rent increase.
• Michigan is considering requiring state board approval for rent increases above inflation.

If you operate across even three of these states, you’re juggling fundamentally different rules, different notice timelines, different documentation burdens. And local jurisdictions often layer their own rules on top of state law.

One error — a notice sent 12 days too late, an increase applied before a tenant’s 12-month window closed, a missing cost justification — can void that increase entirely. For a 100-lot park raising rents $50 per lot, that’s $60,000 in annualized revenue evaporated.

The Three Failure Modes We See Most

1. The Calendar Miss

Most operators don’t track rent eligibility at the tenant level. They think in terms of park-wide rent increases. But in states like Washington, eligibility isn’t park-wide — it’s per-tenant, based on when they signed their lease. Send one notice too early, it’s void.

2. The Documentation Gap

States like New Jersey, Maine, and now Florida require documented justification for increases — utility costs, insurance premiums, capital improvements. If you can’t produce those invoices on demand, you either can’t raise rents or you raise them illegally. Neither option is good.

3. The Legislative Blind Spot

By the time most operators hear about a new law, it’s already passed and sometimes already in effect. Florida’s 2026 bills were filed early in the year with a July effective date, and most operators in the state didn’t hear about them until March. That’s a dangerously short runway to adapt operations, retrain staff, and update leases.

What Actually Works

After navigating this across our portfolio in the Southeast, here’s what we’ve built at Keel Team:

• A rolling legislative watchlist. Every state we operate in or plan to enter has a legislative tracking file. We watch bills in committee — not just laws that pass. By the time something becomes law, it’s too late to plan. We want 6–12 months of runway.
• 90 days as the universal minimum notice standard. Some states require 90 days. Some require 60. Some require 30. We do 90 everywhere, for every increase, without exception. It costs us nothing and keeps us compliant everywhere.
• A tenant-level rent eligibility tracker. We know exactly when each tenant’s 12-month window opens, when they’re eligible for an increase, and when the notice deadline falls. This is in our property management system with automated alerts.
• State-specific notice templates, attorney-reviewed annually. Each state has its own compliant language, its own documentation attachment, its own compliance checklist. We update them every January.
• Documenting cost basis for every increase. Before we raise rents anywhere, we compile a cost file: utility cost trends, insurance renewal, CapEx work completed in the last 12 months, tax assessments. It’s our justification if required by law — and our internal discipline to make sure increases reflect real economics.

The Bigger Picture

The regulatory tide is not going back out. Manufactured housing is politically charged — it’s the last category of affordable housing that isn’t heavily subsidized, and legislators at every level are paying attention. The operators who thrive in this environment won’t be the ones fighting the regulations. They’ll be the ones who build compliance into their operating systems so thoroughly that it costs them nothing.

If you operate in multiple states and don’t have a formal compliance system today, this month is the time to build one. The cost of getting it right is a few hours of attorney time and disciplined record-keeping. The cost of getting it wrong is measured in five and six figures.

We cover the full due diligence and compliance framework for manufactured housing in our Mobile Home Park Due Diligence Playbook — free and worth bookmarking before your next acquisition.

Reach out at keelteam.com if you want to talk through how we’ve built these systems across our own portfolio.

Keel Team acquires and operates mobile home parks in the Southeast, focused on stable communities with strong regional demand fundamentals.