Property issue

I have very confused about various laws and I am sorry to say I am not good at understanding these stuff . But I seek help getting answer to my query. Say, my mother- in- law had a property in her name, what will be the scenario after her death Case 1: WILL is there and she transfers all on my father-in-laws name Case 2: WILL is not there In both the cases what would be my husbands share ? Members in the family after her death : my father in law , my sister in law , myself and my husband ( we 4 )