while my AOS is pending how long can I stay outside US?

Kumarash

Registered Users (C)
Dear all,
I have a offer of job from a US employer to work in a foreign country which may be a renewable contract for 1 year. I want to find out while my AOS is pending how long can I stay outside US? This is assuming I have switched employer and my I140 is approved and I am pass 180 days of my I485 (on a GC petition from my sponsoring emplyer).

Also, does my new employer needs to take over the AOS process since I will switch employer?

Thanks a lot for your input!
 
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