If she is on the lease she has the same obligation to pay rent just like you were to , I suspect her brother and parents appear to have a problem related to feeling entitled SO you may well want to not only move out but before you move out send to the landlord (s) if the house is a different landlord than the mobile home park written letters , in each letter state that you have moved out as of X date ( real paper letter no email or texting) keep a copy of each letter and include your new mailing address and send via confirmed mail delivery . Staple your postal receipt to your copy of the letter. Ask the clerk of the court at the county courthouse how you can keep checking to see if any civil actions are filed against you with a court date.