Yes. In modern times, women are (generally) considered to be people, and so each spouse has their own will. It is very rare that both will die at the same time. If you're in an auto accident, and you get hit on the driver's side, then often it would be concluded that the driver died shortly before the passenger. In any case, wills for husband and wife will generally provide for the order in which they are to be probated, in the event of a true simultaneous death. There is much less pressure on this, as so few couples are subject to federal estate tax now. However, if husband and wife have separate estate plans, benefiting different people, then this would matter. If husband and wife have commingled their funds, so that it is not possible to determine whose money is whose, then they should develop one consistent plan, so that it doesn't matter who dies first. Protection will be needed in the plan to keep the survivor from changing the plan after one has died.
Answered on Nov 06th, 2013 at 9:11 PM