How can one deal with a son who wants to redistribute his father's inheritance and deprive his stepmother of her share, claiming she was irrevocably divorced, even though the matter is still under judicial review?

As long as the matter is under judicial review, there is no issue regarding financial rights, for the judge's ruling resolves the dispute concerning the divorce of an enraged person whose anger reaches the point of becoming oblivious. As for dealing with this disobedient person, it should be through praying for his guidance, offering advice, reminding him of Allah, and explaining the gravity of disobedience and severing ties of kinship.