Right of wife and children on self acquired property of a man

I'm Hindu unmarried boy 28-year-old .my family consists of 5 members.father mother elder married sister me and younger unmarried sister. the issue is that my father refusing to give his property to family .he wishes that property can give to others.my question is that what are the right of family over the father property.incase he can give property to other what can we do.if it is self acquired than what are the right over property.if my family cannot do on self acquired property.he cheite my mother by marriage and give birth to children and now playing game like he cannot give property.then what my mother can do . what her life safety? About 35 years she doing anything he wants.but now he cheated her like this.so she talking about suicide. but we are 3 children give her a supportive talk.that we will take action in police station.can she claims property share ? And punishment for him making her mentally and physically harrshment