貼下沉太快: 懇請專家及過來人指點, I485 and stamp passport

懇請專家及過來人指點: how to get passport stamped when come back from Canadian landing. Please share your experience or advice. My attorney insist stamp is very important when filing I485. I also wonder if I can send I485 first then go to Canada landing immediately after that(within a couple of days) so that I can avoid the last entry date and locate in I485.

多謝.