My son plead guilty to 180 days in Essex county for traffic violation?

If he has pleaded guilty and been sentenced to 6 months in jail, I presume he has a lawyer. That is who you should speak to.

Will an out of state license be an issue in traffic court if the officer who gave the ticket did not address the issue?

It is not an issue. You are always best advised to hire a lawyer. But there are many towns where they do not do plea bargains on Cell Phone cases.

No, the age of consent in New Jersey is 16. At 18 you can join the military and enter contracts. At 21 you can drink. The one exception would be...

How can I get a free pool attorney?

When you have assigned counsel, you do not get to choose your counsel. I am not aware of any way you could obtain new assigned counsel.

What happen when you failed to appear in court for sentence ?

As the other attorney's have indicated there is a bench warrant for your arrest. If the sentencing judge believes you it will simply be a matter...

Can I talk to the prosecutor prior to my simple assault charge where I am the defendant?

You have the right to remain silent. Anything you say can be used against you.

Can I get a DUI expunged?

A traffic offense cannot be expunged. The bill is directed to the criminal code and does not change that.

When a PRO is dissolved does it stay on your record?

Expungement pertains to the criminal record. A TRO is a civil matter. If there was no FRO then there was no entry into the S.A.F.E. database.

Do I really need to fly back to new jersey to attend court? What are the possible outcomes from these traffic violations?

Operating wirh CDS in a MV carries a mandatory 2 year loss of license. You would seriously regret pleading to that charge. Retain counsel.

I blew in it 11 times and nothing came up what may happen

You are going to be charged with refusal.