WH, Do the credit reports so that you know exactly what he has out there. A report for you should only show what is in both names. His separate credit cards will not show up on a report for just yourself (at least that's what I found out when I did one for myself many years ago).
I think you need to look into the credit cards for bankruptcy. When my xh's wife (ow) filed for Chapter 7 bankruptcy several years ago, they only went after the cards with her name on them because she filed in her name only. This would include any outstanding debt on vehicles that are in his name only, etc.
You will need to share your concerns w/your lawyer, but do the reports and you can actually print them off from your home printer. Don't be afraid to do this...knowledge is power and you need to know just what exactly he owes, especially when it comes to the home and any joint account that your name is on.
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.