Husband doesn’t want to work

My husband and I recently went through a really nasty horrible experience with a bad employer. We both left and are still fighting a legal battle to get our $. Since we left he has been working casually for a friend and someone else we know. The pays not great and hours not huge and I haven been helping him in his search for work however every single job that comes up he says no to. I’m starting to think he wants to continue this casual no commitment sort of arrangement but it’s no where near enough to pay the bills. When I question him he gets defensive and says he will keep looking but I can clearly see he’s avoiding it. I can understand how angry and hurt he is after the last job (they ruined his 20 year career) but he needs to move on and not let it continue to harm us. I have a new job starting next month and am trying really hard to find something between now and then and I also think it’s annoying him I’m not working atleast in a casual capacity but no one wants to take me on for just 4 weeks of work.
How do we move forward. He’s a very defensive person and trying to have serious conversation over work at the moment he just shuts down.
Bills are piling up savings are basically gone. He’s also filled with so much anger that the old boss still owes us near $20,000 yet and we are financially struggling. The legal battle could go on for months.