What precautions should I take?

Was the family member a resident of your household served at your residence? Make sure that good service was made. You need to hire a local lawyer...

Can a collection agency get my Drivers license suspended?

Yes you can potentially have your license suspended. Do not give them any bank info. Contact your insurance to report the claim. Contact a local...

Someone hit my car from behind. Not any damage done they left the scene I followed after them to get license plate number

If there was no damage and no police report, probably best to move on. Nothing for you to recover.

Let your insurance deal with him. Do not return his call or refer him to your carrier. If it was a hit skip, then how would he know who you are and...

I have a drug case in Arizona with nationwide pickup from Ohio will they come get me

This is a duplicate post. Please see the other response.

Arizona is going to have him transported back to face charges. He could waive the hearing and speed up the process.

What charge would this be?

They could face criminal charges ranging from assault to traffic citations.

Liability has no relavence to your lack of insurance. Don't worry.

Auto accident was "mutual" but I have been getting subrogation demands via phone?

Probably best to report it to your insurance. If you are sued you may be denied coverage for not timely reporting the accident. It could be more...

Check with your state board. Depending on your licensure rules you may be banned. The issue is administrative and not legal.