MY daughter has a daughter thats almost two years old she never married the father but they filled out the forms in the hospital. when the baby was two months old father left for idaho. have not seen or heard from him since. He had an drug and alcohol problem. Now out of the blue he writes a letter to us. My daughter is all freaked out wants to know how to get full custody of her. so he can't come and take her away How do we do this in the state of washington.