If you get any money, put it in someone else's safety deposit box. Anything in your safe deposit box could be subject to division as marital property.

I would strongly consider using a credit card....or any means....to get the $ for the retainer for a lawyer. Because of pain/limited mobility, you can not go skipping down to the courthouse or chase down forms as easily as someone else might be able to. If you could get free legal assistance through legal aid or a disability service, so much the better ! If you have to pay the retainer now, definitely have your lawyer add filing to recover lawyer costs to his motions. You wouldn't need the lawyer if your stbx didn't abandon you with no money/income.

If you haven't applied for SSDI yet, do it yesterday. Many courts won't consider you disabled until the federal government says that you are.

File for temporary spousal support immediately. Notify the electric, oil/gas, and phone companies that you are disabled so that they can't shut off services.

On a positive note, you became disabled during the marriage. Dumb stbx could (and should) end up paying you lifetime spousal support. Get a cut throat lawyer !

Hang in there !