It takes quite a long time. If you want to pay it, try doing it about 10 days before the appearance date.

Can the arrest record be sealed?

An arrest can be sealed. The likelihood of being successful in this is based on when the event occurred, facts, etc. I would call local attorneys...

Unpaid Fare Evasion from 7 years ago?

You want to clear the FTA to get valid driving. There may be issues in the fare evasion case. You may want to retain an attorney.

Is this very serious?

Most criminal charges are serious offenses. You can obtain an attorney to take care of your case because you are in Az. I recommend looking here...

Got pulled over and got hit with a dui. But I had a wet reckless a few years back. What's my situation?

The stakes got much higher for you. A first time wet reckless did not likely come with much more than classes and fines. The prosecution will not...

II do not know what these charges are for or why there is a warrant out for them?

That is a petty theft charge. You want to get an attorney to start working on your case.

Will i still be given the sentence that was offered to me when i first got arrested?

That is going to be a tough sell. Talk to your attorney about your chances of modifying your sentence.

The quick answer is yes. You might want to consult with an attorney to get to know all your rights.

How much time is he potentially facing? will his documented mental health and ptsd and treatment from the V.A help him in anyway

Facing quite some time. Speak to their attorney to get a better range.

Will I be arrested?

Clear the warrant and go have fun....