I have an attorney who did the PERM and H1B, but the rest I am doing myself.
I am not sure about the AC21 Question. I feel that AC21 rule should be applicable to 485 which was transferred from NIW to PERM I-140. Since the PD of 485 (which was originally filed with NIW), is actually the RD/ND after the transfer to PERM I-140, I would then assume that the AC21 count should begin from ND/RD.
The answer to NIW question appears straight forward. As long as you have employment in MUA and you have an approved NIW 140 from each employer, you can claim your Adjustment of Status anytime after you have completed aggregate 5 years in 6 years period of time and submit all evidence like W2s and Employment Letters. If you have already completed 5 years, it will then make sense to link 485 to NIW 140. But if you still have many years left for NIW requirement and PERM is approved subsequently, then it will be best to link 485 to PERM 140.
In my case 485 RD is 3/05, and after the TRANSFER to PERM, I hoping that the PD should become CURRENT leading to an immediate adjudication. This is what I requested in my letter to USCIS
Now, I have been wondering if I should send Second 485 with my PERM 140, for back purpose. But then I fear that the USCIS will come back to me and say that since you have filed Second 485, the first one should be considered abandoned and I will lose my PD from the first 485. However, the advantage of sending Second 485 will be, that I will be able to claim AC21 without much complication later on, should the situation arise. Has this happned to anyone before??[/QUOte
I have 1.5 years left in NIW. Now after waiting for more than 5 months after 3 transfer request VSC I have decided to go ahead and file a 2nd 485. Atleast I know that after 180 days I can clearly invoke Ac21 and donot have a restriction to work in underserved area.