Squatters’ rights on commercial property come from a doctrine called adverse possession, and under the right conditions a long-term unauthorized occupant can eventually claim legal ownership of a vacant storefront, warehouse, or office building. The conditions are strict, the timelines are long, and successful claims are rare. The more common risk is everything that happens before a claim ripens: property damage, lost rent, legal fees, and an insurance policy that may not pay out because the building sat empty too long.
What a Squatter Must Prove to Take Commercial Property
Adverse possession lets someone claim ownership of land they’ve occupied without permission, as long as they satisfy every element their jurisdiction requires, continuously, for the full statutory period. The doctrine applies to commercial property the same way it applies to residential land. One boundary worth knowing: adverse possession generally cannot be used against government-owned property, so publicly held commercial lots and buildings are off-limits regardless of how long someone occupies them.1Justia. Adverse Possession Under Property Law
Every element below must be met, and must stay met throughout the entire statutory period. Falling short on one of them at any point kills the claim.1Justia. Adverse Possession Under Property Law
Hostile. The occupant is there without the owner’s permission. “Hostile” doesn’t mean aggressive; it means unauthorized. The moment an owner grants any form of consent, including an informal arrangement, the occupation stops being hostile and the clock resets to zero.2Legal Information Institute. Adverse Possession
Actual. The occupant physically uses the property the way a real owner would: operating a business, storing inventory, maintaining the building, making improvements. Occasional visits don’t count.
Open and notorious. The occupation is visible enough that an owner who bothered to check would notice it. Hiding in a back room with the blinds drawn fails this test.2Legal Information Institute. Adverse Possession
Exclusive. The occupant controls the property alone, keeping out the owner, the public, and other unauthorized people. A shared space defeats the claim.2Legal Information Institute. Adverse Possession
Continuous for the statutory period. The occupation must be uninterrupted for the length of time the state requires. These periods vary widely across the United States, from as few as five years when the occupant holds a document that appears to convey title, up to 20 years or more in many states. Ohio and Pennsylvania require 21 years, and New Jersey requires 30 years in most cases.2Legal Information Institute. Adverse Possession A significant absence followed by a return generally breaks continuity and restarts the clock.
Shortcuts That Can Speed Up a Claim
A few legal mechanics can shorten the timeline or stitch together separate occupations. Owners should know they exist.
Color of title. An occupant who holds a written document, like a deed, that appears to transfer ownership but is actually defective is said to have color of title.3Legal Information Institute. Color of Title Many jurisdictions reduce the statutory period for claimants in this position. A state that normally requires 20 years might require only seven. The claimant has to genuinely believe the document was valid; a knowing forgery doesn’t qualify.
Property tax payments. Roughly a third of states require the occupant to pay property taxes on the land during part or all of the statutory period. States with this requirement tend to pair it with shorter periods, often five to seven years. For an owner, this is a gift: tax records are public, and a quick check tells you whether someone is quietly building a claim.
Tacking. In many jurisdictions, successive occupants can combine their time toward the statutory period, as long as there’s a direct connection between them, such as one transferring their interest to the next.2Legal Information Institute. Adverse Possession Random, unrelated trespassers can’t tack. A deliberate handoff can. For a long-vacant building that has passed through a few hands, this matters.
Squatter or Holdover Tenant?
These are not the same, and treating them the same leads to expensive mistakes. A squatter has never had any legal right to be on the property. A holdover tenant once had a valid lease that has since expired.
Two consequences follow. First, a holdover tenant generally cannot win an adverse possession claim, because their occupation began with the owner’s consent and the “hostile” element is missing. Second, if you accept rent from a holdover tenant after the lease ends, many jurisdictions treat that payment as creating a new month-to-month tenancy. Cash a check and you’ve given the occupant a fresh legal right to stay. If you want a former tenant out, stop accepting payments and start the formal notice process immediately.
Removing a Squatter from Commercial Property
How you remove someone depends on how long they’ve been there and what state you’re in.
Fresh Trespasser
Someone who broke in yesterday is a trespasser. In most jurisdictions, police can remove a trespasser on the spot without a court order. Call law enforcement, show proof of ownership, and officers handle it.
Established Squatter
Once a person has been on the property long enough to look like an occupant rather than an intruder, many jurisdictions require a formal legal process to remove them, even though they never had permission. This is where recent legislation can change the picture dramatically.
Since 2024, more than a dozen states have passed anti-squatter laws. Florida, Georgia, New York, Alabama, and West Virginia enacted measures in 2024, followed in 2025 by Indiana, Kentucky, Utah, Mississippi, Montana, Wyoming, and others. The approaches vary. Some states have criminalized squatting outright. Indiana and Mississippi allow property owners to file an affidavit with law enforcement and have unauthorized occupants removed within 24 to 48 hours. Several states have declared that squatters cannot be classified as tenants no matter how long they’ve been in place, which cuts off a common delay tactic. Georgia’s Squatter Reform Act requires occupants to produce proof of lawful residency within three business days of being served or face arrest.
Check your state before anything else. The removal process may be far faster than you expect.
The Standard Unlawful Detainer Route
In states without an expedited procedure, the standard tool is an unlawful detainer action, which is an eviction lawsuit focused on who has the right to possess the property.4Legal Information Institute. Unlawful Detainer The usual sequence:
- Serve a written notice to quit or notice to vacate, demanding that the occupant leave by a specific date. This step is legally required; skipping it will get the case dismissed.4Legal Information Institute. Unlawful Detainer
- File an unlawful detainer complaint with the appropriate court if the occupant doesn’t leave.
- Attend the hearing. Straightforward squatter cases, where the occupant has no lease or documentation, tend to resolve quickly in the owner’s favor.
- Enforce the court’s writ of possession, which authorizes law enforcement to physically remove the occupant.
Do Not Attempt Self-Help
Changing locks, removing doors, cutting off utilities, or threatening an occupant exposes you to civil liability in nearly every state, even when the person has no right to be there. Courts take a dim view of self-help eviction, and a property owner owing damages to a squatter is not a story you want to tell.
The Vacancy Insurance Gap
The ownership claim is only part of the financial exposure. Long before anyone could accumulate enough years to claim title, an occupant can cause real damage: vandalism, stripped fixtures, fire hazards, accumulated waste. And standard commercial property insurance may not cover any of it.
Most commercial property policies include a vacancy clause. Under common policy language, coverage for vandalism, theft, and certain water damage is excluded once a building has been vacant for 60 or more consecutive days. Squatter situations almost always involve properties that have been empty for months, which puts the damage squarely in that coverage gap. Insurers tend to treat squatter damage as a property management failure rather than a sudden, insurable event.
Add lost rental income during the removal process, declining property values, and legal costs that scale with how hard the occupant fights, and waiting gets expensive fast.
Preventing a Claim in the First Place
Prevention is far easier than removal. The strategy is to make it impossible for anyone to satisfy the elements of adverse possession in the first place.
- Inspect the property regularly. A monthly drive-by beats a seasonal one, and frequent visits defeat any argument that occupation was open and notorious for years without your knowledge.
- Secure the building. Lock entrances, board or seal windows, fence the lot, and post “No Trespassing” signs. Signage alone won’t stop a determined occupant, but it establishes that entry wasn’t permitted.
- Put any permission in writing. If you let someone use the property temporarily, document it as a revocable license agreement. Written permission eliminates the hostile element that every adverse possession claim requires.2Legal Information Institute. Adverse Possession
- Keep your property taxes current. In states where occupants must pay taxes to claim adverse possession, your active payment record makes a competing payment stand out.
- Monitor tax records on your own parcel. If someone else has been paying, that’s an early warning.
Keeping the building occupied, even by a short-term tenant or caretaker, serves double duty: it preserves insurance coverage past the 60-day vacancy threshold and defeats hostile possession at the same time.
If a Squatter Tries to Formalize Ownership
Satisfying the elements of adverse possession doesn’t automatically transfer title. The claimant has to file a quiet title action, a lawsuit asking a court to formally declare them the legal owner. The claimant carries the burden of proving every element, and courts apply a high evidentiary standard because they’re being asked to strip title from the recorded owner.
For a commercial property owner, this is actually the system’s safety net. You will receive formal legal notice before any title transfer. If you’ve been monitoring the property and keeping records of inspections, tax payments, and any permission agreements, you’ll be well-positioned to defeat the claim. Ignore the notice and you risk a default judgment. Respond to it, and the claim usually falls apart on one element or another.