Hi VJ,
I recently accepted a job offer and have been through the drugs screen and reference check. These have all come back successfully. However, today I have been informed that they are only willing to hire someone who is a permanent resident. This was never communicated to me and my EAD card is still valid for another 9 months whilst I await my PR interview.
I researched online at USCIS and found this helpful information:
"Your employer MAY NOT:
Refuse to accept your document or refuse