Lost job recently. Was working on H1B. I am trying to understand how much time I have effectively to find another job and have the H1B filed by next employer. Is it necessary that the H1B “start date” in the I-129 petition be within the 60-day mark ( the grace period) from the last day of job in order for USCIS to grant H1B approval after a layoff?

I stayed with my last employer more than 6 months after I-140 was approved. My employer revoked I-140 but I can retain my priority date.
Now, I am filing I-140 again with a new employer. Will I have stay with my current employer more than 6 months after I-140 is approved to retain my (old) priority date? If I change job after I-140 is approved, my employer can't revoke it. True? Is there any period I need to be employed with the current employer after I-140 is approved?

1. I have approved I-140 with company A and my wife got H-4 EAD. I am planning to move to company B. Can my current employer (Company A) revoke I-140? (I-140 has been approved for more than 6 months). If he can't revoke I-140, can my wife work on the H-4 EAD that she got based on company A's I-140?<br>
2. If my H-1 and my wife's H-4 transferred to Company B, do I need to apply for new H-4 EAD or can she continue working on H-4 EAD from company A (that H-4 EAD still has validity)?

Can my wife travel to India and then back to the USA for a period of 12 days while her H4 EAD application is pending? Based on current estimates of processing times we do not estimate that her H4 EAD will come before the first week of July. We will be back to the USA in the first week of May.

I lost my job recently. I was working on H1B. I am staying in the US until my grace period ends or until I find a new job. Can I apply for the Unemployment Insurance in my state? I believe that is paid by the employer.

Brief history - 7th year on H1, 140 approved.<br>

1. Per recent USCIS memo 'H-1B for Programmers - 2017 Guidance'.... if the designation in my current LCA has 'Programmer' word, should I be changing the designation to a different one when I apply for H1 ?renewal?<br>

2. Also in the same memo, it said: "USCIS will now target employers petitioning for H-1B workers who work off-site at another company or organization’s location."
........what does that mean......between my employer and the end client there is middle vendor...is that in any way related to what's stated above?
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3. My most recent H1 is via COS from H4 and is valid until March -18. I will be applying for H1 renewal 6 months before but just in case the renewal doesn't go through, can I apply for a change of status to H4 while I'm here .

I am a Canadian citizen and was staying in Canada from Feb2008 to Nov 2011. From Canada, I filed for CP EB3 with employer A and GC was approved for the same employer in September 2011. I entered the US in the mid of Nov 2011. Didn't join employer immediately after coming to the US. I told my employer verbally and assure him that I will join him in 2-3 months and He agreed to it. In December 2011 went to India for two weeks(due to father's death anniversary). After coming back from India took a break (needed time to heal. Didn't try or looked to join any other employer).And finally from February 2012 started working for employer A who sponsored my GC. I joined a different employer in mid of 2013.<br>
After entering US through CP EB3 in Nov 2011 and not working at all taking break and then joining GC sponsorship employer A. Will this gap (3 months) negatively affects citizenship application? Is it mandatory to join immediately? Can a new GC card holder legally stay without a job for a while immediately after GC is approved?