I am currently on my H1B extension and my employer filed a petition,I-140 under EB3 category which was approved. I cannot file for an adjustment of status at the moment so if my H1 B visa expires before I can file for the AOS in that case does my employer have to file for an extension for H1b or is it the EAD. I am confused if they are two diffrent things or one and the same. Please advise.
EAD and H-1 are two different things. You will get your EAD only after you file the 485.