It appears the police officer was lying. While I will of course defer to NJ counsel that looks like a 4 point offense.

Of course this is a scam. Ignore and block them.

Perhaps, depending on other factors such as his age, education and past work history. I urge your friend to reach out to a social security attorney...

If under $7000 you would go to your local small claim court. It would be helpful if you had a signed promissory note or other evidence of the debt.

He likely has insufficient injuries to warrant legal action.

You have no injuries and thus no claims.

Your post is unclear. It appears that you're asking whether your receipt of funds for having black lung disease would impact a claim for SS...

Certainly sounds like a scam in my opinion.

If the 16 year old loses eligibility due to a parent's marriage they will need to reapply for SSI at age 18. This would be necessary anyway since...

Neither good nor bad. It all depends on which hypothetical the judge goes with. If you had an attorney ask them their impressions. If you did...