Dear Abby: My mother-in-law is 80 and in the early stages of Alzheimer’s. She lives alone an hour and a half from us. She also has a professional who takes care of her once a week. My husband, “Fred,” goes to help and entertain her every weekend, and I sometimes accompany him. She has enough money to stay in an assisted living facility, but Fred wants to build a mother-in-law apartment for her on our property.