Yes there may be a very good elder neglect case. Consult with experienced attorneys.

There are a few possibilities. These include getting rock-solid evidence. It might be possible to dismiss the case and re-file later-Consult...

Yes the do. But to force them, a lawsuit may be necessary.

They can be subpoenaed and demanded from the husband.

Unfortunately such cases are very difficult. Consult with experienced attorneys in your state.

You can take the vehicle without trespassing or breaching the peace. Ask the police to go with you. Consult with experienced attorneys.

Probably limited to worker’s compensation. You can sue the mother (and paid by any proper insurance she may have) Consult with experienced...

You can sue for the damage to the car.

Unless you have a lawsuit where you can lawfully subpoena the report, you are unlikely entitled to it.

Discuss this with your bankruptcy attorney and Consult with experienced FDCPA attorneys.