H1b Tranfer and extension while H1b extension in process

[rmram22]

Please help as we have to decide on the new offer soon.Below is the case.

1. I am working on H1B for company A and my visa and I94 will expire on 28 Nov 2012. Company A filed extension in regular processing and currently in "initial review"

2. I got offer from Company B and they are ready to file h1b transfer and extension in premium processing.

3. But Company B is asking me to join as soon as i get the receipt number (as soon as they file transfer and extension)

My concern:

If my H1b transfer filed by Company B gets RFE and the transfer approval process gets delayed and goes beyond 28 Nov 2012,

1. Do i need to go out of country for stamping?

2. Possible that Company A might revoke my H1b extension as soon as i leave company. Is it legal to stay beyond 28 Nov 2012 based on H1b transfer filed by Company B?

Kindly help.

[krialta]

Response to your concerns -

1) No. You could stay till end of grace period.

2) Yes, its the process any company would follow.