The bigger issue is that you NEED to consult with an injury lawyer. Then you can better understand your situation and make an intelligent decision...

Insurance and civil lawsuit

Turn it over to your prior insurance company.

You should contact a car accident lawyer in that area immediately.

Is there a lawyer who can file my law suit by march3rd

You might try and call every medical malpractice lawyer in your area IMMEDIATELY and have a detailed summary as to the facts of your case.

Contact local counsel to fully understand your options.

You should consult with private counsel so you can understand the steps moving forward and whether or not you need you own lawyer as well.

Can sale of my salvaged vehicle complete settlement if insured's coverage didn't pay all my damages?

You should speak with a MVA attorney in that state immediately.

Can I be sued for over my liability limit if I was in a multi car accident and not at fault

These cases are all fact driven. You should turn the claim over to your insurance carrier.

My husband doctor.

How, if at all, do you claim your husband has been damaged? If there is no injury then there will be no case.

Can they be sued in state court or only in federal? Will lawyers take cases like this?

You should probably start by speaking with a bankruptcy lawyer about your case.You should