F1 processing taking beyond normal time of 2.5 months and current H4 nearing expiry!

[AVR.]

Hi all,

I'm currently under H4 visa. My Visa expires on 31 August 2014. For an extension of H4 visa I am required to contact my husband company no later than 4 days from now., i.e., by 25/07/2014.

Meanwhile,
I had applied for F1 visa on 3 May 2014. It is still under...

[Spri]

All,

My current I94 will be expiring on 29th Apr.
My employer has already filed the L1A conversion (Current Visa is L1B individual)

My question
1. Can I file Form I-539 which is for an extension of stay?
Purpose of doing this is - I (My employer) will...