Dear Annie: I have a 24-year-old daughter by an ex-girlfriend. When "Tiffany" was a child, her mother made it very difficult for me to see her. At one point, her attorney sent me a letter saying I would not have to pay child support if I gave up all parental rights. I refused. When Tiffany was 9 years old, my ex moved to another state without telling me. I found her through her former neighbors. Consequently, I was only able to see Tiffany for a couple of weeks in the summer.