to dwayne.simmons617:
As far as I know, if your I-485 has been pending for more than 180 days and you will continue to work in the same field you claimed for your I-140, it should fine.to christine.simmons922:
I just realized that I didn't really answer your question. So, if you change jobs before your I-485 is filed or before your I-485 is pending at least 180 days, you will lose your I-140 under EB-1B and you need to file another I-140 to get your green card.