Oregon Squatters Rights: Adverse Possession and How Removal Actually Works
How long adverse possession takes in Oregon, whether there is a fast-track removal law, and what you legally can and cannot do about an unauthorized occupant. Last reviewed August 2026.
The question that decides everything: is the occupant a squatter or a tenant? Anyone who ever had permission to be there — a former tenant, someone who paid you rent even once, an ex-partner of your tenant on the lease — is generally a tenant in the law's eyes and must go through the eviction process. Oregon's squatter rules below apply to true trespassers only.
How long does adverse possession take in Oregon?
Oregon requires 10 years of actual, open, notorious, exclusive, hostile and continuous possession under ORS 105.620, proven by clear and convincing evidence. Uniquely, the statute also requires that the claimant (or their predecessors) had an honest belief of actual ownership when they entered — a requirement added by the legislature for claims vesting after January 1, 1990. That honest-belief element makes classic "squatter takes an occupied house" claims essentially impossible in Oregon; successful cases are almost all boundary-line disputes between neighbors.
How to remove a squatter in Oregon
House Bill 3522 (2025), signed June 20, 2025 and effective January 1, 2026, finally gave Oregon owners a usable path: an owner may serve a squatter a 24-hour written notice to vacate stating the date and time to leave and that the basis is unauthorized occupancy, and if the person stays, the owner may file a forcible entry and detainer action under ORS chapter 105 — the same fast eviction track landlords use — with the holdover treated as unlawful holding by force. Before 2026, owners had to bring a full ejectment lawsuit in circuit court, because FED was reserved for landlord-tenant relationships; that is also why police historically refused to act once an occupant claimed to live there. The notice does not create any tenancy rights.
Squatter or tenant? Why it matters
HB 3522 applies only to people who are not tenants: anyone with a rental agreement (written or oral), anyone who has paid rent that was accepted, and anyone otherwise entitled to possession keeps every protection of the Residential Landlord and Tenant Act, ORS chapter 90. Tenants can only be removed with the ORS 90 notices (10-day or 13-day for nonpayment under ORS 90.394, qualifying-reason notices after the first year) followed by a court-ordered eviction.
What you absolutely cannot do
Lockouts, utility shutoffs and seizing belongings without a judgment are unlawful in Oregon. ORS 90.375 lets an ousted occupant get an injunction restoring possession or terminate the tenancy, and in either case recover up to two months' periodic rent or twice actual damages, whichever is greater, plus deposits and prepaid rent. Even against a true squatter, the safe route is the 24-hour notice and FED filing rather than force.
Recent changes to the law
HB 3522 (2025), passed unanimously, signed by Governor Kotek on June 20, 2025, and effective January 1, 2026, allows property owners to remove squatters through the expedited forcible entry and detainer process after a 24-hour written notice to vacate, instead of the slow ejectment lawsuit previously required. The law applies only to unauthorized occupants and leaves ORS chapter 90 tenant protections untouched.
What Oregon property owners get wrong
The classic Oregon mistake before 2026 was filing an FED case against a squatter and getting dismissed because no landlord-tenant relationship existed; the opposite mistake is now emerging — using the new 24-hour notice against someone who once paid rent, which converts the case back into a full ORS 90 eviction and can generate penalties. Document that the occupant never had consent before serving the HB 3522 notice. Also remember Oregon's honest-belief rule: fears that a squatter will "take the house" through adverse possession are misplaced, since a knowing trespasser can never satisfy ORS 105.620.
The law itself
Frequently asked questions
How long does a squatter have to stay in Oregon to claim ownership?
10 years — but with a catch that defeats most squatters. ORS 105.620 requires 10 years of actual, open, notorious, exclusive, hostile and continuous possession proven by clear and convincing evidence, plus an honest belief of actual ownership when possession began. A person who knows the property isn't theirs can never satisfy that element, so genuine squatters cannot win adverse possession in Oregon.
How do I remove a squatter in Oregon?
Since January 1, 2026, serve a 24-hour written notice to vacate under HB 3522 stating the deadline and that the person is an unauthorized occupant, then file a forcible entry and detainer action if they stay. The court process is the same fast track used for evictions, and the sheriff executes the judgment. Before 2026 the only route was a full ejectment lawsuit, and self-help lockouts remain illegal.
Does Oregon's HB 3522 apply to tenants or people who paid rent?
No. HB 3522 covers only people with no rental agreement and no legal entitlement to the property. Anyone who is a tenant under ORS chapter 90 — including oral month-to-month tenants and occupants whose rent you accepted — must be evicted with the standard ORS 90 notices and court process, and using the 24-hour squatter notice against them is unlawful.
Can Portland landlords use the squatter process despite local ordinances?
Yes — Portland's ordinance layer (City Code 30.01.085, with 90-day notices and relocation payments) regulates tenancy terminations, not squatter removals. A true unauthorized occupant with no rental agreement is outside those tenant protections, but the moment any tenancy is arguable, both state ORS 90 rules and Portland's ordinance apply in full.
Keep reading
Vacant units attract squatters. Documented ones repel them.
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Start Free TrialThis page is general information, not legal advice. Squatter, trespass, and adverse possession law turns on specific facts — verify against the official statute text linked above, and talk to a local attorney or law enforcement before acting.