Approved (and not revoked) I-140 with previous employer A and currently with employer B.
If I join previous employer (A) -
a. Does the PERM process have to be restarted?
b. Any risk in transfer back etc?
If I remain with employer B, can I still file for 485 when priority date becomes current? Do I have to join Employer A back for that?
Thanks in advance for response/suggestions.