Does H1B approval remains valid (for transfer) even after revocation prior to Oct. 1st effective date?

1. Technically not, since your ah-1b status has been revoked before a new one could be approved. But maybe you'll get lucky and USCIS, thinking...

What is supporting documents are required in order to facilitate approval of change of statues from B1/2 to F1?

You should be the one filing and sending the COS request application. I doubt your school will agree to do that on your behalf. As for the...

As long as your B visa stamp is still valid you can attempt to be admitted on B visitor status. But be ready to explain the purpose of your...

Can i Apply L1A, L2 and L2 ead concurrently

Yes you can, but your concurrently filed L2 and EAD extensions will be not be approved unless your spouse's L1-A 's extension is approved.

Not so sure about the foia request.

A FOIA information request will not yield any information about you unless you can write in your "A" number on the request. That's how the...

I 765 Pending Since 175 days .(F-1 student OPT EAD)

Not will you receive the results of such checks. You need to be patient.

Change my status from H1-B to H4. Do I have to change to H4 if my new employer apply H1-B visa for me within 30 days?

I would, immediately, just to play it safe and in the eventuality the revocation is received and registered at USCIS. If that were to occur, you...

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I filed an I-130 for my wife. Can she come to the US anytime during the process, stay while visiting, and just file an i-485?

Duplicate question, only with more precise details this time. My answer to your previous question still stands. Please carefully refer to it.

Green card for US citizen's brother.

First of all, a brother/sister petition takes 10 years (or much more) to have an immigrant visa number to be available for it. The Form I-130...

Can I file both I-130 and I-485 concurrently while my wife is visiting and staying in the U.S. for less than 6 months?

Yes! As long as you both file the I-130 and I-485 AT LEAST 60 DAYS after your wife's LAST arrival to the U.S., lest her case be denied due to...