Dear Abby: How do I get my 40-year-old daughter and her husband to pay their share of rent?

Dear Abby: I’ve been a divorced woman for the past 10 years and am at retirement age. In the divorce, I received my house, which is almost paid for. My family, including my daughter (40), her husband (42), my son (36), my nephew (42) and my granddaughter (12), all live in that house.