H1B extension

[Ravi1990]

I'm currently on H1B, my visa/I-94 expires on 08-31-2019. I have a (transfer+extension) H1B petition pending from my new employer with RFE. I've told that I would join upon approval of H1B.
However, I'm also applying for H1 extension from my current employer which would ideally be sent to USCIS before 08/31/2019.
Will there be any problem in having 2 H1B applications parallelly 1)transfer+extension 2) extension.
How long will I be able to work after the I-94 expiry once my H1B extension petition is received by USCIS from my current employer.

[Libra_14]

Probably wrong section for this question. Hence no response.

But one can have multiple non-immigrant visas / petition at any point of time.

[yetogaf90]

Yes, try to ask this question somewhere else. If it is not too late of course. Maybe other folks would help you.

[Libra_14]

Yes, try to ask this question somewhere else. If it is not too late of course. Maybe other folks would help you.

Thanks Yetogaf90.