I entered US on Apr 2015 on H1b with employer X with i797 (H1b Stamped) valid till Jul 2017. But I transferred to new employer Y in Aug 2015 and i797 with Y was approved till 23 Jul 2016. My current employer Y has filed my extension in premium.
My questions here are
In case my H1b extension asks for RFE or is rejected then can I switch back to my previous employer X if they are ready to take me back as current i797 is valid for X? or Do they have to file transfer again?
In case of RFE, my current employer replies with required documents but decision comes after 23 July. How long I can stay legally in US after decision? is there any other chance for them to file extension again after that?
Appreciate earliest reply.