I'm mentally challenge

Be honest about your mental state and request a lawyer.

I have been convicted with a misdemeanor for drug and drug paraphernalia, will I ever be able to buy a firearm in oklahoma again

It's not a felony. However, you need to read your paperwork specifically any terms and conditions of your sentence.

Can my husband (bio father) and I relocate from Oklahoma to Nebraska?

He needs to follow the relocation statute language. The test is for him to prove he's moving on good faith and the other side must prove the move...

Will I go to jail for buying an $800 phone at walmart with my moms check and without her knowledge?

Hire a criminal attorney for optimum results.

What's going to Happen?

I don't understand whatnyu are asking. Re ask.

Can you file contempt in a different county than the one you got divorced in?

Yes you have to file in the county where the divorce was done unless you register it in another county.

File for divorce or separate maintenance and seek a temporary order to get him out of the house.

Yes it's called a petition for separate Maintenance

How should i go about my DUI and Adjustment of status

It's best I contact an immigration lawyer.

Can the Municipal Court change the citation into a criminal offense that will be put on my record?

Contact the court clerk to get more time to pay. Regardless, the charge will stay in municipal court.