Well i think you should try to look for someone who knows more about working in the us. Perhaps then you'll be able to know the details you need regarding working there. If you want you can see New York Immigration Lawyer Marina Shepelsky, located in Brooklyn, assists clients from the New York metro area and across the United States in all immigration and naturalization matters
http://www.e-us-visa.comMaybe she can help you
*****
rory