See a divorce attorney, now. She's a spouse, so that makes things tough.

Let me suggest you get a consult with a local VA-accredited elder law attorney who can advise you as to both Medicaid and VA benefits.

You bring a custody action in the local Superior Court. Best to get a family law attorney to assist.

Contact their corporate management and enter a complaint. A suit isn't worth it.

You have to listen to your mother until you turn 18 years of age or become emancipated.

Be careful in honestly and correctly answering all questions on the ATF Form 4473 when you fill it out.

Contact DFCS and file for guardianship.

You can appeal or you can take the proposal. The judge gains nothing out of the decision from a personal financial perspective, regardless of what...

That would get worked out as part of any settlement agreement in a divorce action.

That is in violation of GA law: O.C.G.A. 53-5-5 "Duty to File Will".