An explanation is really all you need. The civil marriage is the one that will control the date. The pictures, invitations, etc are good evidence...

Single as of the date of filing. At the interview, if asked, definitely disclose that you are married, if that is indeed the case at that point....

That is perfectly fine. The filing of the I-130 does not convey any immigration status to them. Returning home to wait out the process is what the...

If you mean EB-1C, then no. You have to have worked in a managerial or executive position for the foreign entity in at least 1 of the past 3 years.

This is serious and you need to consult with am immigration attorney immediately. I would want to know if there is verification from USCIS of the...

That should be fine. The RFE will usually provide a list of documents that can be submitted in response to the inquiry.

It is possible but he will face scrutiny as the officer will likely question whether this entry is for visitation purposes and not to go around...

Yes. Any citation, even if resolved, should be listed. Given how strict USCIS is these days, no sense risking not including them.

Looks like you are repeating a question you asked earlier. See the answers from my colleagues to your other question.

You mentioned some important considerations. Underserved areas, lack of qualified healthcare workers, etc are all factors that should be...