I was trying to get information if adjust of status through employment based gc(EB3) is possible without leaving the country while I am in TPS status only? I don't have any unlawful presence as I was in F1 earlier. When I checked with a lawyer, he told me that since I am not in a non-immigrant visa, I will have to leave the country to adjust my status. Can someone confirm or let me know if someone has faced similar situation? Also, since I am just starting the process, how long does it take from beginning to the point where I can be independent of TPS status? I was worried if my gc application process would go further than the validity of TPS, then what would happen to my case?

Please let me know.