Since she is willing to try to make you take her to court to get her out , first order of business, if you do not have a bank box and a post office box go get them, all documents that can be used to help steal your identity and any small valuables( jewelry , coin collections, cash you might normally have hidden in the house ) that can easily be sold- disposed of & all banking info can go into the bank box and post office box so nothing of yours that comes to the house can be stolen from the mail, like credit cards & more indentity information. THEN you can use that po box as your mailing address when you send her proper written notice via certified mail or even for your end of the paper work for getting her out so that way she cant destroy your proofs like if she refused to pick up certified mail from you , it will be returned by the post office and you wouldn't want her to have the chance to destroy it. I wish for you it was as simple as putting her over your knee and paddling her tuchis but considering that she has already said what she did , Id say go thru the process and get her out , You also can add a deadbolt for your bedroom door ( replace the door knob) once you start the process do not back down ( infact also take pics of every thing in the house and store them in the bank box too, because if she decided to rip you off it will help you to have pictures of your things when you file police report. )