
Originally Posted by
pdfeb09
Q,
So far as I understand, AC21 is a provision for the people who do not want to join the petitioning employer, despite the initial intention to do so, because sufficient time has elapsed since the intention was first proclaimed. You do not have to be working with your petitioning employer so long as there was a provable intent on both the sides at the time of petition (and at the time of filing I485). AC21 is required to communicate to the USCIS that, even though there was an intent on both the sides to work together at the time of I140 and I485, since there has been 6 months, the intention has now changed. So long as the beneficiary is filling up a "Same Or Similar" job position at another legitimate employer, the Adjustment of Status procedure is carried out without a problem, barring other issues.
Long story short, the employee does not have to be working for the petitioning employer to invoke AC21. But the employee must invoke AC21 to let USCIS know that the petitioning employer is no more in picture and that another employer will be keeping the employee off the public charge.
AGAIN, I AM NOT A LAWYER AND THIS IS NOT A LEGAL ADVICE.