Idaho is what’s known as a “community property” state — one of 9.5 such states in the United States. (Alaska has an opt-in provision for community property, so it is the 1/2 state.) The rest of the states are “common law” property state. In those states, determining who owns what is generally straight-forward. If there is a written title document for the property (house, car, boat), then whoever is listed on the title owns the property. If there is not title, then whoever owned the money ...