Ask a landlord-tenant lawyer and get answers ASAP
I am sorry for your situation, given the fact that the person lives in your home. Typically, you would need to refrain from any self help activities such as changing the locks and then, file an Unlawful Detainer lawsuit. However, in this instance, the person is not a tenant, but a "boarder". As such, the boarder has less formal rights of eviction. The first thing to do is to call your local police departmenent to find out if you can evict the boarder based on your desire to evict them. The police have different procedures depending on the jurisdiction. They should be able to tell you if they can simple remove the boarders property or not. In the worst case, you may need to provide written notice of eviction and file an unlawful detainer, serve the nitice, and go to court for eviction and back rent. At best case, depending on your jurisdiction, the police may request that the boarder leave. I hope the best outcome. Thank you.