I-140 & I-485 filed. My attorney has said I must remain on the payroll of my sponsoring employer for at least 4 months. However, my employers attorney says that there is no need for me to work for the sponsoring employer at all. Is there a clear cut answer to this & why is it so important? My sponsoring employer has no objection if I want to work for someone else & will not revoke the I-140 but if there is no legal requirement to put me on his payroll - why should he?