Getting a mentally ill person out of your house legally means choosing among three formal paths: eviction if they simply will not leave, a protective order if they are threatening or violent, or an emergency psychiatric hold if they are in acute crisis. What you cannot do is handle it yourself. Changing the locks, packing their things onto the porch, or shutting off the power will expose you to civil liability and, in some places, criminal charges, even when you own the home and they pay you nothing. Mental illness also triggers federal disability protections that shape what you are allowed to do and how quickly.
Why Self-Help Removal Backfires
Once someone has been living in your home for any meaningful period, courts in most jurisdictions treat them as a lawful occupant entitled to a formal removal process. That is true whether they signed a lease, paid rent, or just moved in and stayed. Locking them out, removing their belongings, or physically forcing them to leave are all forms of “self-help eviction” and are broadly prohibited.
If you try it, the person can call the police and potentially be let back into the home. You can be sued for damages, and courts regularly award money to occupants who were illegally locked out even when those occupants were paying nothing. Some jurisdictions add criminal exposure for trespass or property destruction on top of that. The rule is simple: an established residence can only be undone through due process.
How the Law Classifies the Person in Your Home
Before you serve any paperwork, work out how a court would categorize the occupant. That classification decides your notice period, your filing route, and the defenses they can raise.
- A person who pays rent or has a written agreement is a tenant, with the strongest occupancy protections. You must follow your jurisdiction’s full landlord-tenant eviction process.
- A person who moved in without a lease and pays nothing is usually a licensee. They still have legal protections, but removal is typically simpler and faster than a tenant eviction.
- A relative may be treated as either a tenant or a licensee depending on local law and any financial arrangement. Some jurisdictions have specific procedures for removing household members.
When in doubt, treat the person as a tenant and follow the more protective process. Over-complying with notice requirements never hurts you. Under-complying can get your case dismissed.
Fair Housing Rules When Mental Illness Is Involved
Mental illness qualifies as a disability under the federal Fair Housing Act, which reaches most residential arrangements, including homeowners who let others live with them. Under 42 U.S.C. § 3604(f)(3)(B), it is illegal to refuse to make “reasonable accommodations in rules, policies, practices, or services” when those accommodations are necessary for a person with a disability to have equal opportunity to use and enjoy a home.1Office of the Law Revision Counsel. United States Code Title 42 – 3604
Practically, if the behavior driving you to remove the person is connected to their mental illness, you may be required to consider accommodations before proceeding. That could mean extra time to find housing, letting a caregiver help, or adjusting household rules that hit them harder because of their condition. Skip this step and a routine eviction can turn into a federal discrimination complaint.
The law carves out an exception. Under 42 U.S.C. § 3604(f)(9), the Act does not require you to house someone “whose tenancy would constitute a direct threat to the health or safety of other individuals or whose tenancy would result in substantial physical damage to the property of others.”1Office of the Law Revision Counsel. United States Code Title 42 – 3604 Courts set a high bar here. You need objective evidence of dangerous behavior. Fear, discomfort, and generalized assumptions about mental illness will not carry the exception on their own.
Evicting Someone Who Refuses to Leave
If voluntary conversations have gone nowhere, formal eviction is usually the next step. The pattern is similar across most of the country, though timelines and filing details vary.
Serving a Written Notice
The process starts with a written “Notice to Quit” or “Notice to Vacate” giving the person a specific number of days to leave. For occupants without a lease, the required notice period runs anywhere from three to 30 days depending on jurisdiction. The notice usually has to be delivered in person or posted on a door the person regularly uses. Mailing alone may not satisfy local requirements.
The notice should state clearly that the person must vacate by a specific date and that you will pursue legal action if they do not. Keep a copy. Document how and when you delivered it. A defect in content, timing, or delivery method can get the whole case thrown out and force you to start over.
Filing the Eviction Case
If the deadline passes without the person leaving, you file an eviction lawsuit, often called an “unlawful detainer” action, in your local court. Filing fees run from about $20 to several hundred dollars. The court sets a hearing where you must show that you properly served notice and that the person has no legal right to stay.
At the hearing, the occupant can raise defenses: a defective notice, a claim to greater protections as a tenant, retaliation, or discrimination based on their disability. If you win, the court issues a judgment for possession and then a writ of possession, which authorizes the sheriff or marshal to physically remove the person if they still will not leave. Only law enforcement carries out the removal. You cannot do it yourself, even with the court order in hand.
When the Person Is Threatening or Violent
If the person in your home is threatening you, being violent, or behaving in a way that makes you fear for your safety, a protective order (sometimes called a restraining order) can require them to leave immediately and stay away. It is faster than eviction and built for dangerous situations.
You file a petition with the court describing the threatening behavior. Supporting evidence helps, though it is not always required for the initial temporary order. A judge reviews the petition quickly, often the same day, and if serious immediate harm is possible, can issue a temporary order that takes effect right away and lasts until a full hearing, typically scheduled within 14 days.2Domestic Violence & Sexual Assault Services. Instructions for Petition for Protection Order
At the full hearing, both sides present evidence. If the court finds a reasonable basis for your fear of harm, it can issue a longer order lasting from one to several years depending on jurisdiction, with the possibility of renewal. Protective orders can prohibit contact, bar the person from your home, and require them to stay a set distance away. Violating one is a criminal offense, which gives the order teeth an eviction order does not have.
When the Person Is in Psychiatric Crisis
If the person is in acute distress and cannot make safe decisions about their own care, the response is different. You are looking at crisis services and, potentially, an emergency psychiatric hold, not an eviction.
Call 988 First for Most Crises
Calling or texting 988 connects you to trained crisis counselors around the clock. The service is free and confidential and covers suicidal thoughts, emotional distress, and mental health emergencies.3Substance Abuse and Mental Health Services Administration. 988 Suicide and Crisis Lifeline Counselors can help de-escalate the situation, dispatch local mobile crisis teams, and tell you whether emergency services are needed. For many situations, this is a better first call than 911.
Call 911 When There Is Immediate Physical Danger
If there is immediate physical danger, call 911 and tell the dispatcher you are dealing with a mental health crisis. Many police departments have Crisis Intervention Team (CIT) officers who have completed specialized 40-hour training in de-escalation, recognizing mental illness, and connecting people with treatment rather than jail.4Bureau of Justice Assistance. Training – PMHC Toolkit Ask for a CIT-trained officer. That request does not guarantee one is available, but it improves the odds of a response focused on psychiatric needs.
When officers arrive, give them clear, factual information: mental health history, medications, current behavior, and whether weapons are accessible. Officers can place the person on an emergency psychiatric hold if they determine the person is a danger to themselves or others.
Emergency Psychiatric Holds
An involuntary hold is not a way to get a difficult roommate out. It requires evidence that the person is a danger to themselves or others, or in many states so gravely disabled that they cannot meet basic needs like eating or finding shelter.5Psychiatric Services. State Laws on Emergency Holds for Mental Health Stabilization Courts look for suicidal behavior, threats of violence, self-harm, or a complete inability to care for oneself.
The process usually starts when someone contacts a healthcare provider, law enforcement, or the local probate court. In 22 states, any interested person can initiate the emergency hold process; in others, only police, physicians, or mental health professionals can begin it.5Psychiatric Services. State Laws on Emergency Holds for Mental Health Stabilization A provider evaluates the person, and if they meet the criteria, they are admitted to a psychiatric facility.
The initial hold is short. Twenty-two states set the maximum at 72 hours; others range from 24 hours to ten days.5Psychiatric Services. State Laws on Emergency Holds for Mental Health Stabilization A court hearing is required to extend inpatient care beyond the emergency period, and the person has the right to legal representation there. Important to understand: a hold buys stabilization and evaluation, but it does not resolve whether the person can come back to your home after release. If you want them out permanently, you still need an eviction or a protective order.
What to Do With Their Belongings
After the person leaves or is removed, their property will still be in your home. Do not throw it out, sell it, or drag it to the curb. In nearly every jurisdiction, you have a legal duty to store the belongings for a reasonable period and to notify the person where and when to retrieve them.
Document everything they left with a written inventory and photographs. Send written notice to their last known address describing what you have, where it is stored, and the deadline to pick it up. Required storage periods vary but commonly fall in the 15 to 30 day range. Keep items secure until that window closes. After proper notice and the waiting period, most jurisdictions let you dispose of or sell what remains. Perishables and obvious trash can generally go right away. Skipping these steps invites a conversion lawsuit for the value of everything you tossed, which is a frustrating way to lose a case you were otherwise going to win.
Getting Legal Help
This is one of those areas where an attorney is not a luxury. Mental health removal sits where landlord-tenant law, disability rights, family law, and sometimes criminal law meet. Getting the process wrong can mean starting over, facing a discrimination complaint, or losing a protective order hearing you should have won.
If a private attorney is out of reach, free legal aid may be available. The Legal Services Corporation funds legal aid organizations in every state that handle housing, family, and disability cases for people who meet income guidelines. LawHelp.org maintains a directory of free legal services by state and issue. Local bar associations often run reduced-fee referral programs as well.
NAMI (the National Alliance on Mental Illness) runs a helpline and has local chapters in every state that can connect you with crisis resources, help you build a plan, and point you toward legal and treatment options. Talking to them commits you to nothing, and the guidance of people who see these situations regularly is worth having before you make decisions that are hard to undo.