Is it permissible for children to waive their share of their father's inheritance to their divorced sister in exchange for a deferred debt, in order to absolve their father and to gladden their sister's heart?

It is not permissible for a father to own and dispose of his child's property except under certain conditions: that it does not harm the child, that the child does not need it, that he does not take money from one child to give to another, and that the father has a need for the money he takes. If the divorced sister needs her house for her residence or for renting it out, and her father prevented her, then he has wronged her. The heirs must give her share of the house's rent and its sale price before dividing the inheritance.