I was convicted of a burglary of a resident and has tired to get it expunged but was told that it cant due to the charge

You can petition the court to get your hunting rights back, but you can't expunge the charge.

Can my probation officer revoke me for not paying as much as she says I have to??

Probably not, but a lot depends on the court itself. It sounds like you're on a private probation company like "justice network" etc. which is...

Custody?

You need to consult with a lawyer and let them check all the paperwork and go over the details with you. It's just too much to get into on a website.

I don't think MASEP drug tests it's students. I haven't heard of such.

In Mississippi, am I required to continue to pay child support if my child does not live with her mother, works full time?

You need to get a lawyer and have the child support stopped.

Prior to the birth of my son I used pain killers. Can my sons mom use it against me?

You have certain rights based on your being the child's father. You will have to hire an attorney to get your issues in front of a judge.

My sons mother has prevented me from seeing my son What rights do I have before we've gone to court? Child supp isn't filed

You need to hire a MS lawyer and get some court ordered rights. If you can show where you've been clean, then your past should stay in your past.

Be careful what you put on the internet about this situation. You need to discuss this with your attorney handling your divorce.

They should be cautious about this, but in essence you have answered your own question.

How to have 13yr old son's last name changed to mine/spouse last name.

You'll need to do an adoption and through that process you can change his last name. There is a slim chance a judge would just let you change his...