Lots of people serving our country get in trouble. But putting that aside, you need to speak to your PO.

How can I find out why I don't pass a back ground check for purchasing a firearm?

You would need to speak to an attorney that deals with gun rights, or ask the agency that denied the permit, but based on what you have said I am...

Why can't a sex offender join the millatary?

This is a question for a congressional representative, not a lawyer.

Will my husband be denied US citizenship for not registering for selective service when he can to the United States?

This is not a military law question. I will switch to Immigration Law.

Where I can mail form DD 4 applicantion?

Duplicate question. I don't understand what you are asking. If you are asking where you can get a copy of your DD 214 from, you complete an SF...

Where I have mail DD 4?

Perhaps others will, but I don't understand your question.

Go see your TDS lawyers immediately. But my guess is the command will walk you through the clearing steps long before Friday.

What form do I need to appeal (Over turn) a ABCMR decision?

If you have new information not seen by the ABCMR, you can ask for reconsideration. If not, you have to go to federal court, although you are...

Questions about enlisting should be addressed to recruiters, not lawyers.

You can absolutely sue. You won't win anything, but you can sue. And the cost of filing suit will be much more than the cost of a cigar.