Need information on property ownership name change

Hi, My Family has Me, my husband, son and mother in law. My father in law was died in 2008. My husband has 3 sisters and all are married. We have a house in my father in laws name. However since he is no more, we want to transfer the ownership of house to my mother in law's name. There is no will by father in law. What is the process to be followed to transfer it to my mother in law's name. Regards,