Each applicant requires a separate I864.

I agree with my colleagues re: alternative means to move case along.

A medical waiver should be completed. Consult with your attorney for guidance.

No you may apply based on time of residency.

They may remain while extension is processed.

The 2017 and 2018 years may be an issue. Consult with an attorney for guidance.

Contact USCIS directly to inquire about processing.

Only if applicant is in US are they adjustment eligible. Consult with an attorney for guidance.

Best to wait for actual EAD to work purposes.

SB1 doesn’t appear a viable solution. Consult with an attorney for guidance.