Does a will become null an void after divorce or is it still good when you marry someone else?

In most cases yes, unless the people involved allow the children to remain in the Will. If the divorce is amicable by both parties then the wife or husband may even stay in the will. The norm is, that when people file for divorce they divide property/monies and settle on child custody. The existing Wills should be redone by a lawyer (or the person themselves) taking out their ex. Then it's up to each of them to decide if the children remain in each separate Will. Marcy