This is an international transfer. I was working in the US when the PERM was filed. I'm now outside the US working for the same firm in their overseas subsidiary. It's a big firm and it takes aeons getting through to the correct team. After the docs were submitted to NVC, my lawyer (the outsourced immigration firm) mentioned that nothing additional would be needed at the time of the interview, they have done multiple such cases in the past and they usually provide an "employment letter" and pay stubs which suffices.
However, last week i reached out to the lawyers to confirm and quoted that the embassy website states "Job offer letter from your U.S. employer' and if they would be providing that. They're now asking me to get a job offer letter, in addition to the Employment letter* which they'll provide. and i'm unsure which team to reach out to, or what the contents of the offer letter should be 😒. I just went through the employment visa based requirements for different countries (copied below), and I think that my lawyers is confused as the requirements for an employment visa stated on the US Embassy London website is different from other countries. I think that since this is seemingly new to my lawyer, they're asking me to get this form separately. However, it's quite likely that the employment letter which they'll provide may well suffice and they're just being extra cautious as they're noticing this for the first time?
Please, see below how the details on the London website are different from the other countries.
-----
U.S. Consulate General Montreal, Canada - MTL
For employment-based visa applications: A letter from your U.S.-based employer dated less than one month ago.
U.S. Consulate General Amsterdam, Netherlands - AMS
For employment-based visa applications: Letter from your U.S. employer dated less than one month ago.
U.S. Embassy Madrid, Spain - MDD
For employment-based visa applications: Letter from your U.S. employer dated less than one month ago.
However, for London it is:
U.S. Embassy London, United Kingdom - LND
For employment-based visa applications: Job offer letter from your U.S. employer dated less than one month ago.
------
*I'm yet to see the contents of the employment letter.