Hello, My PERM was pending and my H1B was expiring. Therefore, to stay in status i filed to change my status from H-1B to B1/B2. Now my PERM has been approved and my Change of Status is pending. Can my attorney file for my I-140 (premium processing) and then H-1B extension ((premium processing) and once i get the extension approved i can withdraw my change of status application. ?