The first thing to do, is to give an official (dated) letter stating that she will be evicted in 90 days due to no payment of rent, signed in blue ink, given to her with a witness there (make a copy of it first) If you can get her to sign it, that would be amazing, otherwise have the witness write on the copy that he witnessed you giving her the original on the date stated, and have the witness sign it... then continue with your work...