We sometimes get asked to prepare a joint will for a married couple, but they are almost always a bad idea. Here's why: What's a Joint Will? A joint will is a single document that's signed by two people, typically a married couple. The idea is that, when one spouse dies, the survivor inherits everything. When the second spouse dies, everything will pass to the children. Sounds like a nice idea - certainly "easier" than each spouse writing their own will. One of the aspects to a joint will, ...