Welcome to the boards... while our stories may differ, they are painful nonetheless.  If you have the law backing you up as far as your granddaughter goes, you will not have to suffer the pain and loss that has dogged a number of posters.  Very difficult to detach but when you've given it your best, that's about all you can do.  We can't change another person.  We can only change ourselves.  Best of luck to you.