What is going to happen? am i gonna go to jail?

Your defense attorney is in the best position to answer this question.

My 19 year old son was arrested on assault-battery.

It does not seem like you need an attorney based upon the above.

Do I need to pay for a full month if I'm moving out halfway into the month?

Because you are on a month to month lease.

I just found out that my ex that I’m still married to wants to file?

If you are married and your kids are over 18, you cannot collect child support. Child support generally ends when a child turns 18 or graduates...

Can a judge amend a plea on 211 @ 2-3-5 my son signed 5 with x2 667 1 yr each. later the state caught he has 1 211 is now 6+1

His defense attorney would be the best person to know about his specific situation.

Do I pay or ignore civil demand letter?

Ignoring it may make matters worse. Perhaps consult an attorney in your area.

Can she really do this to him?

The dad should file an action in court to establish custody and visitation. The dad must take action to legally attain visitation.

I got a citation for public intoxication while on vacation, and there is a mandatory court appearance. Can I just pay?

You can hire an attorney to appear for you.

Can someone convicted of felony evading be eligible for fire camp?

The someone’s public defender is in the best position to know this information.

Possible, but very unlikely . Could be assault though.