I am unaware of any regulation that makes Canadian PR disqualifying. Disclose your Canadian status.

You must be paroled or admitted and after 1 year apply for work permit.

In your case, it is best to file Form N600 to get certificate of citizenship. With the certificate he can get a US passport.

Your school officials should also play critical part in the process. They should have the experience and interest in assisting you with F1 visa.

You can apply for her residency now. While pending she may apply for AP to go abroad. You may speak to your JAG officers for further guidance.

Using AP to travel does not invalidate HIB.

Yes, you can work multiple jobs using marriage-based GC-EAD.

An international student (F1 visa) can open an LLC and be a passive investor, buying/holding/selling real estate. You just cannot work or receive...

Make a USCIS case inquiry using your application receipt number.

You put yourself in an unfortunate predicament. You must consult an attorney to help you out. USCIS can get you for false statement under oath at...