(Fatwa: 411/L=131/tl=1431)
(1) Until the father is alive his wealth and property etc may not be inherited. By the grace of Allah, your father is still alive, so there is no heredity in his property and wealth. However, if your father wants to distribute his wealth and property after paying all due rights and debts among his children in his lifetime, there is the ruling that he should keep wealth according to his requirement and distribute the remaining among his children equally with no difference between the shares of son and daughter. And if due to any need, good deed or service, he wants to give extra to some heir it is also right, provided he is not doing so to harm any other heir.
(2) A son-in-law has no right in the property of father in laws during his lifetime and after death.
Note: It is only lawful for a father to distribute his property in his life by selling it, it is not wajib and obligatory on him, and neither children have any right to ask for property distribution in his lifetime.
Allah (Subhana Wa Ta’ala) knows Best
Darul Ifta,
Darul Uloom Deoband