H1B Transfer from Company A to B

need your expertise again…with regards to H1 Transfer…

1)am with Company A in US ...wanted to time the resignation...if Company B files the New H1B (transfer)....I think I can start working with Company B's Receipt....can Company A withdraw Petition at that time and jeopardize B's application....should I wait for approval from Comp B and then resign...

2)What does Comp B need to do for H4 during the H1 transfer so that H4 gets a new I 94 too?

3) My current H1B petition is valid till Aug 2013, but I can get 5 months more based on time spent outside US....should Company B showcase the same and get approval till Aug 2013 + 5 mnths...

 

thanks for your help
  1. Once you get company B’s petition receipt then you can resign, untill then do not tell company A anything of it.

     	2)Sometimes the compB will also apply for H4 too,so that all have the same I-94 status. 
     
     	 
     
     	3) If its full time they wil give you for three years,if consultant: based on the client letter that you submit.