Do we have a chance of beating a marijuana possession charge?

Ugh. The downside of being the nice guy who gives people rides home. If you are willing to go to trial on the matter you have a chance to prevail....

Multiple visits would affect his class work and grades. Do I need to hire a lawyer? Or is it too late?

This is why 19-year-olds should not be in court without an attorney. He needs an attorney to withdraw the plea and start over. This must happen ASAP.

What can I do to help him get parole? Would letters or petitions help?

Consult with an attorney specializing in parole to see if there are any opportunities to influence the decision by the parole board. Most...

Are there attorneys who represent peolpe as liaisons in exchange for such testimonies to make something like this happen.

You should consult with an attorney about the nature of the information you have to offer and its value in relation to the other matter.

Is it even legal that the cop charged him with po violation if it didn't show that he was on probation?

It doesn't matter if the probation sentence was entered in "the system" yet or not. Once he enters a plea and is sentenced he is under sentence and...

What do we do from here?

Well, he is still being charged. The issue of whether or not the evidence is sufficient to convict beyond a reasonable doubt is a question for a jury.

It would be unusual for any witnesses, especially a CI, to be present at arraignment.

So are bench warrants issued from judge thru court system considered public record whereas I can see if a warrant was issued?

In some jurisdictions you are able to see online where a bench warrant has issued. Do you have an attorney? If not, probably time to hire one.

How can file hardship on federal order restitution. I am having a hard time even paying my bills and i have medical issues.

You would have to hire an attorney to file a motion to modify the restitution and to represent you at a hearing.

What type of warrant is it?

When a warrant issues it stops the time running. The warrant is for a probation violation. Whatever time is left in the case you could be made to...