Saaj,

I saw your posting in the thread http://sajha.org/sajha/html/openthread.cfm?threadid=80604 I started couple of months back. I am also doing research on EB2 NIW and reached to a conclusion that it is too risky to do myself. If you work is extra ordinary and have lots of paper with several citations then it may be a different story.

I think it also depends on your visa type too as H1B is dual intent but F1 (OPT) is not. I am in OPT right now. I talked to couple of lawyers and they said you can show immigration intent even in F1(OPT) if you have full time job in your field. I have seen lots of good applicats rejected and few mediocre ones accepted. So, it basically boils down to how you present your case. If you are in H1B, you can try yourself and see as you can still have your H1B. All you loose is the application fee. But for me, I only have six months of OPT and finding job within this period seems out of question for now. At this point, it is the one and only one shot for me and I want to do it right. So, I have decided not to do without a lawyer. If you find something new, let me know.

By the way, are you in H1B? I am also looikng for successful cases while in F1(OPT). So far I only know one successful case while on F1 visa.