Property disputes

My mom and sisters live in my granny house and mom is 4 sister. Recently my granny expired ( grandfather expired 10 year ago). Only my mom and my sister live on my granny house and took care of her for 15 years on bed. Now she is dead. Two of my aunt wants a partition where one of them sent legal notice which we have replied already that we agreed for partition and other aunty's and her husband kind of torture us for partition where we also agreed to go ahead but she is saying that she will put a lock in entire.house if we do not go for partition. We already told every aunt that we are ready for partition but one of the aunty and his husband are telling that they will lock all house and put us out. My mom is living with her mom ( granny) from last 30 year to take care of her and now one of the aunt is threatening us to put lock and keep us out. Fyi- I'm also building a new house on my father property but it will take years for possession. Kindly help me out, how can I tackle them