One would have to review your criminal records. If it is a petty offense, there is no immigration consequence.

The fact that you got a 212(g) does not provide enough information to know your likelihood of approval.

Yes, you can file a petition for a foreign national to immigrate. No, you don't have to wait five years [you would have to wait five years if you...

No, you cannot work without a work permit.

If they file for adjustment of status, they can get permission to return to the U.S. by advance parole. Otherwise, they can leave the U.S. and...

The most cautious approach is for you not to perform any work while you are in the U.S.

Your U.S. relative should contact his or her senator or congressman's office to get you scheduled.

You can file a FOIA request to get a copy of your papers.

There is no way to get the visa issued before it is available.

Apply for a TD visa, there is no need first to come to the U.S. as a tourist and then to try to change status. try filing at preflight inspection...