We are very sorry to hear of the mistreatment of your daughter. This should never, ever happen to a child. We discuss the kind of forgiveness you target in your question in the book, Forgiveness Is a Choice. You would not be forgiving on behalf of your daughter. Instead, you would be forgiving him for his injustice to you. He hurt your daughter. You are legitimately angry. You can then forgive him for the pain he has caused you by hurting your daughter. Once you learn the depth of forgiveness in this way, we recommend working with your daughter on forgiving him, if she is ready to do that. Please remember: When we forgive we do not toss out justice. As we forgive, we can and should ask fairness from those who have hurt us or who are a danger to others.