My PERM application submitted on 25-Jun-2021. Waiting for decision. My I-94 and 6 years ending on 30-Oct-2021. Is the any cutoff date to leave US to use those remaining days for extending existing H1B VISA max out /cap exemption options once I-140 is approved? If I leave US on last valid date will I still be able to come back on the same H1B VISA after I-140 approval?
What are the other steps required to come back to US after approval of I-140 using same H1B VISA.