I have been working with Chen Immigration Law Associates for last 3 years. I got my EB-1A, EB-2 NIW and my wife's EB-2 NIW approved through them. I recommend North America Immigration Law group strongly to everyone who is considering to file green card application on the above mentioned categories.. Their plus points. 1. Individual strategy for each applicant based on their strength and weakness in their CV and achievements. This is very crucial as no two petitions are similar. 2. Very prompt response and always sticking to deadlines 3. Experienced attorneys always available either through emails/ phone consultation 4. In depth knowledge about each filing center (Texas vs Nebraska) including current trend, rate of rejection, premium processing vs no premium processing, educated guess about adjudicating officer's decision making, wait time etc. 5. Produce Excellent quality support/ testimonial letters/ petition letter 6. Highlighting your achievements in the petition letter with latest google/ microsoft softwares adding more visuals/ graphs. 7. Very well versed with previously adjudicated cases and making valid arguments in the petition letter based on previously approved cases