When someone lives with you, they have an obligation to pay everything that you agreed upon prior to their moving in. Usually these agreements include portions of rent, utilities, and food. They also have a responsibility to keep your home livable and free from situations that could interfere with your right to remain in a safe and comfortable conditions. You may choose to evict a person living with you if he fails to pay his fair share or if he does anything to make your living arrangements impossible.
Write a notice to vacate. Texas requires you must first give him a notice to vacate. This can be typed or written by you with a date that you expect him to move. It is not necessary to be formal. You must give the other tenant at least 3 days to move out. In the notice to vacate you may request that he pay any unpaid rent or move out but this is not required. You can have him sign the notice. If he refuses, e-mail is a good way to be sure you have an accurate time stamp.
Fill out a formal eviction suit if he does not move by the deadline in your notice to vacate. You can get the necessary form from the clerk's office in your county court. The forms may be available online at the county court's website. Attach a copy of your notice to vacate to the eviction form and file the papers with the clerk's office.
Go to court on the day of the scheduled hearing. Bring with you evidence of unpaid rent and bills; pictures of destroyed property; witnesses to testify about the living conditions or illegal activity. If the judge grants your eviction, the other tenant will have 5 days to move out.