I read this earlier, and came back to see more of what other people had to say who might have had more experience with this. I feel very somber reading this and just wanted to lend my support, whatever road you take.
I did know a woman several years ago - I met her at her garage sale and we formed a sort of friendship for a few months. I was new in town and bought her filing cabinet
She confided in me that her XH had been in prison. She told me that during that time, the prison system had some financial help for families of the incarcerated. She got some sort of aid. I don't know what that involves?? but perhaps someone would be willing to head you in the right direction??
I hope things get better for you soon.