The criteria mentioned do not determine who stays in the US. Contact a lawyer to closely review your case and discuss options for your course of...

Generally, parallel applications are permissible but only one is needed and adjudicated.

Contact a lawyer to review your immigration history and discuss options for your consideration.

Yes, if approved by the DSO permitting the F-1 may work remotely on STEM OPT from their home country (outside the US). For US tax questions or...

You may marry and update the N-400 application at the interview.

Yes, and if requirements are met, contact NVC and request change from consular processing to AOS.

The process is technical and confusing. Your application cannot be approved without an acceptable 12 pages affidavit of support. You may resubmit...

Your mother-in-law may be a joint sponsor with acceptable income and meet other requirements.

You may file the motion to reopen and see what happens. Good luck.

It ma y be possible to switch to H1B from TPS. Upon termination of removal proceedings, consult an attorney for guidance.