As of July 2008, this is how the system works.

First, let me provide a little background. Priority Date is the date your PERM is filed (in Case of EB-1 or NIW – the date your I-140 is filed; in case of Family-based petitions – the date your I-130 is filed.).

The two-year home residency requirement does not prohibit issuance of F-1 visa. That can be tried any time, even before the HRR is completed. Ultimately, F-1 visas are discretionary. But there is no law that prohibits their issuance in these circumstances.

Issuance of an F-1 does NOT waive the HRR. You will stay subject to it.

I am trying to take an appointment for my wife to renew her H-4 visa since the dates are available right now. She came here on H4, switched in between to F-1 (change of status) but did not leave US, then got the new approval for change of status to H4 (after we filed for green card) and wants to get it stamped now. There is a bit of confusion on the DS-156 form that I have to fill out.

Qo1. Would it be advisable for my wife(secondary applicant) to change to EAD in case she gets a better employment with another employer? This employer is not willing to transfer H1.
Ans. That should be fine.

Qo2. All that is required to work on EAD is fill in form I-9 and submit a copy of EAD with it. Does the employer have to do anything like notifying USCIS etc?
Ans2. The employer has to do nothing more than prepare the I-9 and keep updating it every time new EAD is issued.

Q1. Is there any limit or restriction for number of days without work between changing job?
Ans. No. I do not believe a few weeks should make a difference.

Q2. Will this impact his GC process?
Ans. Not as long as he is eligible for AC21 portability.

Qo. If an AOS (adjustment of status or I-485) applicant has already used up six years on H1 and is currently in 8th year of H1, what are his/her options if AOS gets denied before the 8th year on H1 expires?
Ans. A lot depends upon the grounds of denial and whether they are likely to be overturned on a Motion to Reopen/Reconsider. Do note, there is no appeal against a 485 denial.

The answer is yes, BUT, the case is likely to be very closely scrutinized and may even require supervised recruitment. That means, USDOL will most likely ask us to place advertisements again under their direct supervision. So, we could end up repeating the advertising. This could cause delays (and of course even denial).
This question had come up a few weeks earlier also. I wanted to clarify this with the USDOL so we wrote to them. Our letter and their response is attached.

This morning, I was working on explaining to a client (whom I respect greatly), one of the foremost musicians from India, how EB1 (Extraordinary Ability) category applies to musicians and performers. As I was sending him the basic information on EB1 category, I thought I will share the general criteria with all of you. This information is for EA, generally and applies to all fields - not just music. See attached.