Dear Sir,
My priority date for EB3 is in 2007 and it may take several years. I wish to transfer to other company but should i mail AC 21 letter right after joining or should i mail it after some years when the date is about to be current as i may join even third or fourth company in such a long time if i get better opportunities. I think i should mail AC21 letter when my date is about to be current so i can stay with that company for long time. What if my main petitioning employer is no longer in business due to this recession after some years and then i mail my AC21 letter of transfer from my main employer to the current employer of that time.
Please provide your guidance.
Thank You.

