No, the will cannot be changed after death of the decedent. In certain circumstances the will can be changed by a court after a petition with notice to all affected people, all of whom would have the opportunity to oppose the change. When executor-child died, presumably his interest was already vested, and it would go according to his will, or if he had none, then according to the laws governing intestacy. Same with your step-father. Your step-father's tenth presumably would go according to his will, if any, or if none then one-third to your mother and two-thirds to his children.
Answered on May 09th, 2017 at 7:44 AM