Is it ok to cut ties with a sexually abusive father?

My father had been molesting me ever since I was a child and stopped after I revealed to my family what he was doing. But still to this day he makes some inappropriate comments, it is clear he doesn’t understand modesty and most likely will not change. Anyways currently I have to live with him because I am underage but plan to cut off ties with him in the future. He does not seem to repent or accept what he did to me. Inshallah when i get married and have kids, I don’t want to have the man who caused me so much pain and trauma with me in those moments. I don’t know how I can maintain relationships with that horrible man in the future . I am also encouraging my younger sister to stay away from him for her own safety. Will it be a sin if I do so? Does this abusive man have to stay in my life just because he is my father biologically?