property share

my father purchase 7 marla home in city multan pakistan after my father my grand mother died my father had 6 brothers after this my father has 4 children 1 widow my uncles gave us threat they are patner in our city hom. but the home of city was purchased my father. they claim they have members in our fathers property. i want to ask are they members in our home or not in law please answer me and suggest me what should i do