ADDITIONAL INFORMATION: I am helping an elderly disabled friend who fears his wife who disappeared more than 30 years ago may reappear after he dies and cause problems. He wants to will his home to a friend. To his knowledge, she knows nothing of the property where he had lived since shortly after she left. ANSWER BY DAVID M. BELIVEAU: If his wife is living, she will have spousal rights to his probate estate.  Also, under