An empty unit can create more than maintenance concerns. For boards, property managers, and landlords, it can also create an opportunity for unauthorized occupancy. Whether a home is vacant between owners, tied up in foreclosure, or simply sitting unoccupied for an extended period, the risk of a squatter moving in is one that should not be overlooked.

While squatters often generate headlines and are the subject of a number of misconceptions, the legal reality is usually far more straightforward. This guide will explain what a squatter is, how squatters differ from trespassers and tenants, what squatters’ rights and terms like ‘adverse possession’ mean, and the practical steps boards, managers, and landlords can take to reduce risk and address unauthorized occupancy. 

What is a Squatter?

A squatter is someone who occupies a property without legal ownership, a lease agreement, or the owner’s permission. This can involve a house, condominium unit, apartment, or even vacant land. In many cases, squatters move into properties that have been unoccupied for an extended period, such as foreclosed homes, inherited properties awaiting sale, or units undergoing lengthy renovations.

At its core, squatting is unauthorized occupancy. The occupying individual has no deed, lease, or agreement granting them the right to remain on the property. While squatters may eventually attempt to claim certain legal protections, they do not begin with the rights of a tenant or lawful occupant. It’s therefore not surprising that vacant and overlooked properties are typically the most vulnerable, because unauthorized occupancy can go unnoticed for weeks, or even months.

For boards and property managers, one of the most important things to understand is that squatting does not always involve someone breaking into an empty building. In practice, occupancy disputes can develop in less obvious ways. A former tenant may remain after their lease has ended, or a guest may refuse to leave after being allowed to stay temporarily. What begins as a straightforward occupancy issue can become more complicated when action is delayed and the individual’s presence goes unchallenged.

Squatter vs. Trespasser vs. Tenant vs. Occupant

When someone is living in a property without clear authorization to do so, one of the first questions a board, manager, or landlord must answer is what that person is, legally speaking. The terms ‘trespasser’ versus ‘squatter’ or ‘tenant’ versus ‘occupant’ may on the surface appear respectively similar, but the distinction can significantly affect how a given situation is handled.

A trespasser enters or remains on a property without permission, but has not established an ongoing presence. In many cases, law enforcement can address trespassing immediately, because there is no claim of residency or legal right to occupy the property. Someone breaking into an empty apartment to throw a party or spend the night there is trespassing. 

A squatter, by contrast, has taken up full residence in the apartment or home without the owner’s permission. Once someone appears to be living in a property, the situation often becomes more complex. Depending on state and local laws, property owners may need to follow a formal legal process to remove the person rather than relying on law enforcement to effect their immediate removal.

Tenants occupy a property under a lease or rental agreement with its owner, and have clearly defined rights and responsibilities. Even when a tenant violates the terms of a lease or stops paying rent, property owners typically follow the eviction process established by law.

Subtenants have a legal arrangement, but their right to occupy the property comes through the primary tenant rather than directly from the property owner. Their status may be affected if the original lease expires or is terminated.

Occupant is the broadest category of all. An occupant may be a tenant, family member, long-term guest, or another individual living in the unit, regardless of whether their name appears on a lease.

For boards and managers, the most important distinction between these classifications is authorization. A tenant or subtenant occupies a property through a recognized agreement. A trespasser enters without permission, but has not established residency. A squatter occupies the property without authorization while presenting themselves as an ongoing resident. Understanding that difference is often the first step in determining the appropriate course of action.

Squatters’ Rights & Adverse Possession

The term squatters’ rights refers to a legal doctrine known as adverse possession that holds that under certain circumstances, a person who occupies a property for an extended period without the owner’s permission may be able to seek legal ownership of the property. 

Adverse possession is rare however, and requires much more than simply living in a vacant property. The occupant must generally show that their possession was open, continuous, exclusive, and without the owner’s consent for a period defined by state law. Courts closely scrutinize these claims before recognizing any ownership interest.

For boards, landlords, and property managers, the key takeaway is that squatters do not automatically gain ownership rights. Even when a claim of adverse possession is raised, resolving the issue typically requires a formal legal process. Attempting to remove an occupant by simply changing locks, shutting off utilities, or taking other self-help measures can create additional legal complications. 

How to Prevent Squatting

The most effective way to deal with squatting is to make sure a property never becomes an appealing target in the first place. A few practices go a long way:

Keep vacant properties visibly maintained. Stacks of uncollected mail, dark windows, and overgrown landscaping signal to anyone passing by that a home is unattended. Regular upkeep, even things as simple as keeping exterior lighting on a timer and maintaining planters, tree pits and other landscaping elements makes a property look actively managed.

 Secure every entry point. Locks, window coverings, and alarm systems reduce the odds that someone can enter unnoticed. For properties that sit vacant for long stretches, a routine walk-through by the owner, manager, or a trusted neighbor can catch a problem in its earliest stages, before residence-like occupancy has a chance to take hold.

 Post clear no-trespassing signage. While signage alone won’t stop a determined squatter, it removes any ambiguity about whether entry was authorized, which can matter if the situation ends up in court.

 Act quickly on early warning signs. Unfamiliar cars in the driveway, moved furniture, or new locks are all signals that should be investigated immediately. The earlier a property owner responds, the more likely law enforcement will treat the person as a trespasser rather than as someone with an established, residence-like presence.

 Screen and document tenancies carefully. Many squatter situations actually start as legitimate tenancies that overstay their terms. Clear lease documentation, consistent rent collection records, and a defined move-out process make it far easier to demonstrate, if needed, exactly when someone's authorized occupancy ended.

Keep property managers in the loop. For boards, landlords, and owners managing multiple properties or units, a professional property management company can provide the routine oversight that individual owners often can’t maintain on their own, and catch irregularities before they escalate.

How to Remove Squatters

If a squatter has already settled into a property, the process for their removal typically follows a few stages.

Contact law enforcement first. Police can assess the situation and, if the person is a straightforward trespasser with no ongoing presence, remove them right away. If the individual has established residence-like occupancy, officers will often say there’s nothing more they can do on the spot, and that the matter needs to go through the courts.

 Serve formal written notice. Owners typically need to provide the occupant with a written notice to vacate. This step is required before any further legal action, and creates a paper trail showing that the owner is following proper procedure.

 File for eviction if the notice is ignored. If a squatter doesn’t leave after receiving notice, the next step is usually an unlawful detainer or eviction action through the courts. This is where working with an attorney experienced in these cases becomes valuable, since procedural missteps can delay the process considerably.

 Attend the required hearings. Court dates, documentation requests, and proof of ownership are all part of the process. Owners should expect to be actively involved, rather than treating the filing as a one-time task.

 Complete the removal through proper legal channels. Once a judgment is issued in the owner’s favor, law enforcement generally handles the physical removal of the squatting individual or individuals. Owners should avoid taking matters into their own hands at any stage of this process, since self-help remedies can legally backfire, even in situations where the owner is clearly in the right.

 Address the property afterward. It’s common for squatters to leave personal belongings behind, or cause damage to the property. Local rules often dictate how long an owner must store abandoned property before disposing of it, so it’s worth checking those requirements before clearing anything out.

Proper Protection is Proactive 

Squatter situations rarely happen in isolation. More often, they stem from the same issues behind other property challenges: a vacant unit that isn’t being monitored, a lease that quietly expired, or a maintenance concern that went unnoticed or uncorrected for too long. In many cases, the real issue isn’t the squatters themselves, but the lack of visibility that allowed the situation to develop in the first place.

That’s why proactive oversight from boards, management, and owners matters, from routine property walk-throughs and documenting the end of a lease term to connecting a board with experienced legal counsel who can help navigate a delicate situation with confidence toward a positive outcome.