The way to do it is to find a school that allows it, register, and change status back to F1. That is how you would need to do it.

You can submit an application for advance parole with your I-485, or while your I-485 is pending. Either one, or both.

It depends on where he is now, whether he ever came to the U.S. before, what were the circumstances, how many times, and other information.

It seems to me that if he never was in H1b status, then he is subject to the numerical cap and would need to enter the lottery.

Yes, you can get married remotely through the laws of Utah. If you are barred from admission to the U.S. you will need a waiver to immigrate.

Submit a copy of both passports. It is extremely common for a person to be admitted to the U.S. with a visa in their other passport.

Yes, DHS could arrest anyone in the U.S. who is here illegally. Under the prior Trump administration, there were no categories of people excluded...

You can check the "where to file" in the form instructions to see if perhaps a different service center would handle the case. You can check the...

It would help to show he is a permanent resident of the U.S., even if he is working overseas. It would not harm the application.

You never know, anything is possible. I would guess he would first focus on the people brought into the U.S. over the last four years before he...