In almost all instances only the husband or wife signed. That is the case with me and my wife. The software will not allow but one person per phone be or computer to sign to prevent people from signing more than one time. But where there is only one email account or one computer or phone there seem to be no way for the spouse to sign. If anyone knows a way to do it please post instructions. If we were to have signatures of both husband and wife we would likely have well over a hundred more.