UNJUSTLY MEDICAL DISCHARGE FROM AIRFORCE DUE TO DIABETIC CONDITION?

It depends on where he is in the PEB process. He will be assigned a military lawyer or he can retain civilian counsel to fight this.

Are you the attorney representing the soldier? Your inquiry is unclear as to your role in this. If he is positive he will be assigned a defense...

My husband wants to adopt his 17 years old granddaughter

He needs to check with his personnel office. This is really not a legal question.

How do I know if I can get benefits if I was honorably discharged?

You can go to the VA website. They have a long list of what benefits one is entitled to. Or you can go directly to the VA.

Can current high school students join the military if they are not legal citizens?

Check with your school's recruiter to be sure, but they need to be legal to join.

Yes you can be called to active duty. You will need a family care plan.

Do I have to register as an SO ?

As previously noted, your defense lawyers are the best people to answer this question. However, SOR only applies if you are in the US. There is no...

The paperwork putting you on appellate leave should set out any limitations put upon you.

II got discharged from the air force for sexual harrassment, what do I do to prove it was not true?

As you stated, the burden of proof is on you to prove you did not do it. The best way to do this, in my experience is with an experienced lawyer...

I want to buy an engagement diamond ring, where do start looking?

Certainly not on a legal forum. Try a jewelry store.