Normally USCIS does not pursue a person if they withdraw their naturalization, but there is always a chance they could do so. If you owe back...

The application will be denied. No errors or incorrect statements are allowed particularly about one's country of birth.

There are no criminal or civil penalties for financially sponsoring a student, if the student fails to maintain their lawful status.

Yes, you can file concurrently for adjustment etc as long as your I-360 is based on marriage to a U.S. citizen.

Yes, if you have a work permit, you can work other jobs in addition to the job with your petitioning employer.

My recollection is that the most recent policy is that you will need to file again for advance parole if you get emergency advance parole.

You can check the visa bulletin at travel.state.gov for the priority dates. They are not mutually exclusive, you can file for your sister, your...

It is unfortunate USCIS is taking a long time with your application. And it is unfortunate you gave an incorrect answer at the interview. Perhaps...

Nobody files an i-485 at the U.S. embassy. The petitioner, you, file the i-864. you will all be filing forms with the national visa center,...

You could make loss of calls, emails, congressional inquiries, or you could just file the application again with USCIS, and pay the fees again.