Make sure the petitioner has a copy of their tax return from the previous year. I didn't have mine and had to locate, print, and submit them after the interview to get approval all in the same day (had 2 hours to get it). It worked out b/c we got immediate approval, but it was a very stressful and unnecessary experience if we knew this prior.
Consulate / USCIS Member Review #27171
Review on September 30, 2019:
