Mopsey, My hat is off to your father. Your father will tell him like it is and it sounds like your h was listening but can't accept his actions are the reason for some of this mess. That's okay. He's got plenty to think about.
Mopsey, if he contacts you again, you can be cordial, but keep it somewhat business like. Treat him just as you would when your dentist's receptionist calls to remind you of a dental appointment. He needs to realize that his gravy train may derail sooner than he thinks.
Hang in there.
Sit quietly, the answers will reveal themselves when you least expect them to. The past is gone, the present is a gift and you need to focus on today, allow the future to reveal itself when it is ready.