Leaving employer after I-140 EA approval

imwatcher123

Registered Users (C)
I-140 EA filed by employer (as petitioner) and approved, but I-485 not filed. Since EA does not require sponosr, can he leave emloyer and file I-485 latter by himself? Is he required to work for the employer/petetioner after I-485 is approved. Can the employer revoke the approved I-140? Thanks.
 
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