How do I prove to at fault driver's insurance company that the injury is related to this minor rear end accident?

These cases are very difficult. You will need to consult with an attorney ASAP. Should this matter proceed into litigation there are experts that...

I would contact Yelp and see if they can assist you. Litigation is always your last option.

What kind of lawyer do I need if I want to sue someone for harrassment and defamation of character?

File a police report as your first step.

Brother in car accident. He can't treat because of previous neck surgery. Will he still be able to recover for his pain/suffer?

The short answer is yes. The long answer is that the amount of the damages will depend on your medical evidence and documentation. Essentially,...