I agree. You're building a new life, you shouldn't be bogged down with his financial troubles. It's been a long time since he walked. Let him be responsible for his own choices. You need to take care of yourself and your DD. It's time to wrap up the loose ends. Finances.... Divorce filing..... It may be time to stop waiting for him to do anything and take charge.
I'm mad too. Must be in the fall air. Let's use it before we lose it!