My father passed away about 40 years ago, and I’ve been living in his property since then. My mother is still alive, and I have two elder sisters. I’m the only son. Are my sisters entitled to a share of the property?

Yes, your sisters are entitled to a share of the property. Under the Hindu Succession Act, 1956, your father’s property would be divided equally among his legal heirs, including your mother and sisters, regardless of your gender or the fact that you’ve been living there.