Property on mother's name,can she ask brother and his wife to evacuate

We are three sisters and a brother. Two of the sisters are married and one is unmarried who lives with the mother, My brother and sister-in-law lives with her long with their daughter. This house is owned by our mother, our siste-in-law does have good relations with us and she has also abolished our mother physically and verbally. Our father passed away after long illness and brother is not taking any actions against his wife. Our mother would like our brother and his wife to evacuate our mother's property but they are refusing to leave. Our mother wants to give this house to us three sisters as our father has already given property to our brother. Can my mother create a will for us three for the said property so our brother can't dispute it later? Can we obtain a evacuation notice from court asking them to leave the property? Do we need to involve police or women cell? Brother says he's happy to leave but his wife refuses to leave our property, can we trust him?