The 2026 Landlord Guide to Navigating Regulations in Greater Portland

The regulatory floor under a Greater Portland rental has risen faster in the last six years than in the previous thirty. Portland and South Portland have passed and amended rent control. Town after town in Cumberland and York counties has stood up rental registration programs. Maine's eviction statute has been tightened, the lead poisoning prevention program has been expanded, and the state's short-term rental landscape is being rewritten in real time. This guide is the 2026 snapshot — the legal realities that actually matter for owners operating in Cumberland and York counties, town by town, with the fines and enforcement patterns spelled out.

General information for Maine landlords, not legal advice. Ordinances change. Always cross-check the current text and fee schedule with the city or town clerk before relying on these figures.

The state floor — what applies everywhere in Maine

Before any local ordinance layers on, every rental in Cumberland and York counties sits on top of the state landlord-tenant statute (14 M.R.S. §§ 6001–6038):

• Security deposit: capped at two months' rent, held in a separate trust account at a Maine institution, returned with an itemized statement within 21 days (tenancy at will) or 30 days (written lease) of the tenancy ending. Missing the deadline forfeits the deduction right and exposes the owner to up to double damages plus attorney's fees.
• Rent increases: 45 days' written notice on any tenancy at will. Portland and South Portland override this with stricter rules — see below.
• Late fees: a 15-day grace period from the rent due date, then a fee capped at 4% of one month's rent — and only if the late fee was disclosed in writing in the lease (14 M.R.S. § 6028).
• Eviction: 7-day notice for non-payment, 7 or 30 days for other cause, with a Forcible Entry and Detainer action in the District Court. No self-help — lock changes, utility shutoffs, and removing belongings are independently illegal.
• Smoke and CO alarms: hard-wired or sealed 10-year battery smoke alarms in every sleeping area and on every level; CO alarms outside sleeping areas in any unit with fuel-burning appliances or an attached garage.
• Lead paint: federal Lead Disclosure Rule on every pre-1978 unit; EPA-certified RRP firms for any paint-disturbing work; Maine-licensed abatement for any state-identified hazard. Per-violation civil penalties plus a private right of action for treble damages.
• Fair Housing: federal protected classes plus Maine Human Rights Act protections including sexual orientation, gender identity, and source of income. "We don't take Section 8" is independently actionable.

Portland — the strictest jurisdiction in Maine

Portland sits at the top of the compliance pyramid in Greater Portland. Three programs run in parallel and a unit must comply with all of them.

Rent Control Ordinance

• Covers nearly every long-term residential rental in the city, with narrow owner-occupied carve-outs.
• Annual rent increase capped at a CPI-based percentage the city publishes each year — typically in the low single digits.
• Allowable additions on top of CPI: property tax pass-through, capital improvement amortization (with Rent Board approval), and banked unused increases.
• 90 days' written notice required for any increase (Rent Control Ordinance Sec. 6-234), with the basis spelled out and the tenant's right to dispute disclosed.
• No vacancy decontrol — the next tenant's starting rent is tied to the prior rent.
• Just-cause eviction protections, including for non-renewal of a fixed-term lease. Owner move-in, demolition, and removal from market trigger relocation assistance.
• Annual rent control registration per unit, with current rent and tenancy data.

Penalties: refund orders for overcharges, civil penalties payable to the city, attorney's fees for a prevailing tenant, and a statutory reset of the lawful rent for the remainder of the tenancy. Portland tenants and tenant advocates know the ordinance well and use it.

Rental Housing Registration & Safety Inspections

• Separate annual filing from rent control registration.
• Per-unit fee schedule published each year.
• 24-hour local contact required for out-of-state owners.
• Periodic city safety inspections plus tenant-initiated inspections at any time.
• Late filing penalties scale with unit count and lateness.

Short-Term Rental Program

• Separately licensed category for stays under 30 days.
• Per-unit caps, owner-occupancy requirements depending on the tier, and neighborhood density limits.
• A unit converting from short-term to long-term must come into the long-term registration program for the new use.

South Portland

South Portland passed its own rent stabilization ordinance after Portland's, and the framework has been amended since. The current 2026 shape:

• Covers most multi-unit residential rentals, with an owner-occupied carve-out that is actually broader than Portland's: South Portland exempts owner-occupied buildings of up to four units from certain rent restrictions, and allows a primary resident to register up to five short-term rental living spaces within a single building (Portland's owner-occupied short-term rental exception maxes out at four).
• Annual increase tied to a CPI-based formula, published by the city.
• Written notice requirement longer than the state 45-day floor — confirm the current notice period before issuing.
• Just-cause eviction framework similar in shape to Portland's.
• Annual rental registration program with a per-unit fee and a local-contact requirement.

South Portland enforcement has ramped up since the program took effect — assume the city is watching the same way Portland does.

Cumberland County — the other towns

Outside Portland and South Portland, Cumberland County is a patchwork. The towns most owners ask about:

• Westbrook. Rental registration program in effect; no rent control. Safety inspection cycle on registered units. Confirm the current per-unit fee with the city.
• Brunswick. Rental registration program with a per-unit fee and a local-contact requirement; no rent control. Active code enforcement on registered units.
• Cape Elizabeth, Falmouth, Cumberland, Yarmouth, Scarborough, Gorham, Windham, Freeport. No municipal rent control. Most do not have a city-wide rental registration program as of 2026, but several have considered one. Confirm town-by-town before relying on the absence.
• Short-term rentals town by town. Several Cumberland County coastal and lakefront towns have stood up short-term rental registration, density caps, or both. STR rules are the most active area of municipal regulation in 2026 — assume every coastal town has something on the books or considering something.

Across all of these towns, the state floor still applies in full — deposit handling, eviction process, lead disclosure, alarms, Fair Housing, and source-of-income protections do not vary by town.

York County

York County has historically been lighter on municipal regulation than Cumberland, but two patterns have moved fast in the last three years.

• Short-term rental ordinances. Kennebunkport, Kennebunk, Wells, Ogunquit, Old Orchard Beach, York, Kittery, and Saco have all moved on STR registration, density caps, or owner- occupancy requirements in some form. The fee schedules, the inspection regimes, and the enforcement postures vary dramatically. An STR operator in York County should re-check the local ordinance every off-season.
• Long-term rental registration. Several York County towns have considered or adopted rental registration for long-term units. Biddeford and Sanford have the most active code-enforcement programs in the county.
• No municipal rent control in York County as of 2026. State 45-day notice and 4% late fee cap apply.

Where the fines actually come from

The compliance failures that end up in front of a Maine judge or a Rent Board hearing tend to cluster in a small set of categories:

• Missed deposit return deadline. Single most common Maine landlord-tenant judgment. Forfeits the deduction right; up to double damages plus attorney's fees.
• Defective Portland rent increase notice. Missing basis, missing dispute language, less than 90 days. Voids the increase and may trigger a Rent Board refund.
• Operating an unregistered Portland or South Portland unit. Compounds — an unregistered unit cannot cleanly take an increase or pursue a non-payment eviction.
• Defective 7-day notice or service. Dismisses the FED action and adds four to six weeks of unpaid rent.
• Self-help eviction. Lock change, utility shutoff, removing belongings. Statutory damages, attorney's fees, and a court order returning the tenant to possession.
• Fair Housing. Tester complaints, source-of- income refusals, assistance animal fees, written notes on applications. When conduct is intentional or repeated, damages, penalties, and attorney's fees can run into the five and six figures.
• Lead paint. Missed federal disclosure on a pre-1978 unit, or paint-disturbing work by an uncertified contractor. Per-violation penalties plus treble damages in a private suit.
• STR ordinance violation. Operating without the town license, exceeding density caps, or renting beyond the permitted nights. Per-night civil penalties in several towns, plus license revocation.

What's changing in 2026

• Continued amendments to Portland's rent control framework — assume the CPI allowance changes January 1 every year and that banking, capital improvements, and exemption thresholds may shift mid-year.
• Active short-term rental rule-making in nearly every York County coastal town and several Cumberland County towns.
• Ongoing tightening of the Maine lead poisoning prevention program enforcement, particularly in Lewiston, Portland, and Biddeford.
• Maine Human Rights Commission has signaled continued focus on source-of-income discrimination, including testing of listings and showings.

A practical compliance posture for 2026

• Inventory every unit you own by town and confirm what programs apply.
• Register every covered unit in every program, every year, on time.
• For Portland units, re-check the published CPI allowance in January and calendar every increase against the 90-day rule.
• Calendar every deposit return deadline the day the tenancy ends.
• Hire only RRP-certified firms for paint-disturbing work in pre-1978 units, and only Maine-licensed abatement contractors for identified lead hazards.
• Standardize the screening process across every applicant and retain the file for at least three years.
• For STR operators, re-check the local ordinance every off- season — assume it changed.
• Carry insurance with explicit lead and habitability coverage, not the default exclusions.

How Anchor absorbs this for our clients

Anchor's operating stack carries the registration calendar, the notice templates, the deposit-return clock, the RRP-certified vendor list, and the standardized screening process for every property we manage in Cumberland and York counties. When a Portland Rent Board notice lands, the file is already built. When a town stands up a new registration program, our owners hear about it from us before the deadline. The compliance posture owners would have to build for one or two units is what we already operate at scale — and the liability we assume is the liability we're underwritten to handle.

If you want a no-cost compliance review of your current Greater Portland portfolio — what's registered, what's exposed, and what a 2026-clean posture looks like — we're happy to walk through it on a 20-minute call.