how do i go about getting an ex friend to move her things out? she's ignored me for three months, hasn't paid me rent and i've given 3 notices

I have an ex friend who still has her things in my apartment. She paid me two months of rent before I caught her lying and we stopped being friends. The last time I talked to her I told her either we could work things out or it would be best for her to move out since she said she wouldn't pay me rent. This was in the beginning of Feb. I sent out two more texts between that time and now to tell her she needs to get her things. She claims I owe her a big chunk of money which she has no proof on and won't show me receipts or how she got that amount. I gave her until the end of march to get her things out and she still will not talk to me and I want her things out of my place and out of my life. I know if I move her things she will try to sue me.