Financial Clean up after getting sober?

My SO has been sober for a little over 3 years. When we first met and became friends, he was drinking and had just lost his job. The was after a stint in rehab after his alcoholism almost killed him. The last 3 years prior to our meeting were a horrible slide into oblivion and when he got sober he found he had a huge financial mess to clean up.

To date, he has fixed all his IRS issues, and has a year's payment plan with his state taxes. He has been paying full child support plus some toward arrears (that accumulated during those last