Daughter in law filed a petition against me my mom and dad

Ours is 11 years old marriage and we have a 10 year old son also. But from last 2-3 years she has starting misbehaving with all of us. She is very well qualified and working as a Lecturer in college. She is earning more than me from last so many years but never helped in house. After long disturbed time my father has disowned me last year and now last month he send me and wife a legal notice to vaccate the house which is in His name only. That house is his lifetime earning. My mom is a heart patient, highly diebetic and high BP issues. So I also feel that why to disturb there life and shifted to a rented location. But then my wife filed a petition against me, mom ,and dad of DV and Dowry also. And also not ready to go with me to my rented accomodation. And today when my father contacted the police and tell them all story and ask them to help us as she is threatning us all. But they said that you have to bring court order to get her vaccate the house. In the meantime she called at women helpline and call them at home and stated that my father is threatning her that they will through me out of the house. Our main concern is that God Forbid if she take some wrong step then any way to secure my father mother and me also. As she is neither ready to shift with me nor ready to leave my parents house till the final decession comes from court.