I have 2 questions
1. I work for Company A and I have already got the ball rolling with H1B transfer prcedure with company B? I am told that I can join the new company as soon as the Receipt notice is received by Company B. Are there any things to watch out for while making this move or should I make the move only when the Approval notice comes through??
2. Do I need to re-stamp passport with new H1B visa or is the old one sufficient for re-entry to the US?
Thanks in advance

