This question must have been asked and answered here in sajha before, but i am posting this thread just for the people who are in the same boat.
I am currently in my OPT which will expire in 6 months, my company is moving on with EB-2 GC processing, will i have to leave US and do consular processing for I-485 or can file I-140/485 concurrently to obtain Green card.

Thanks in Advance.