Making a deal with the grandfather to give up his share of the inheritance before the estate is calculated

He died and left behind a wife and nephews and nieces

If a man dies and leaves behind a father and children, how is the estate divided?

He died and left behind a wife, two sons and three daughters

How should they share out the rent of a house that they inherited together?

He divided his wealth before he died and he gave to some of his children and not others

Is it permissible for him to divide his wealth among his heirs when he is still alive?

Can he give to one of his children and not the others if he is poor?

She died and left behind a daughter and a brother

How to distribute the estate among the children