North America Immigration Law Group - specialized in NIW (National Interest Waiver) and EB1 Greencard

North America Immigration Law Group (Chen Immigration Law Associates – WeGreened^®) is a U.S. immigration law firm dedicated to representing individuals, research institutions, and corporations across all 50 states in employment-based immigration matters, with a focus on I-140 immigrant petitions. We specialize exclusively in talent-based immigration categories and have a long-standing record of success in:

EB-2 NIW (National Interest Waiver)
EB-1A (Individuals of Extraordinary Ability)
EB-1B (Outstanding Researchers/Professors)
O-1 (Individuals of Extraordinary Ability)

61,000 Approvals: Unmatched Insight into USCIS Trends
With more than 61,000 approvals in the EB-1A, EB-1B, EB-2 NIW, and O-1 categories, we offer unparalleled insight into how USCIS evaluates these petitions. As USCIS standards continue to evolve, our vast case database enables us to track adjudication patterns and adapt strategies accordingly. We provide our clients with real-time guidance informed by tens of thousands of successful cases.

Attorney-Led, Individually Tailored Petitions
Each petition is prepared under the direct supervision of our experienced immigration attorneys. We do not use generic templates. Every case is individually crafted to highlight your strongest qualifications and align with the latest adjudication trends.

Approval or Refund^® — Our Confidence, Your Security
Since 2011, we’ve proudly offered our Approval or Refund^® service for eligible cases. If your petition is not approved, we refund our attorney fee in full—an offer that reflects our confidence and commitment to your success.
Both Approval or Refund^® and Approve or Refund^™ are exclusively owned trademarks of North America Immigration Law Group. These marks represent our long-standing dedication to excellence in legal representation and client service.
Approval or Refund^® is a registered trademark with the United States Patent and Trademark Office (USPTO), Registration Serial No. 86150599.

We’ve Helped Thousands with Profiles Like Yours
No matter your background, field of expertise, visa status, or nationality, chances are we’ve successfully represented hundreds or even thousands of individuals in similar situations. Our team understands the nuances of technical, academic, and professional work, and we use that insight to craft compelling, case-specific strategies.

We are trusted by professionals from top universities, national laboratories, Fortune 500 companies, startups, and leading medical institutions.

Browse our Success Stories to see how we’ve helped clients across every discipline and career stage.

Built on Trust, Proven by Referrals
Most of our clients come to us through personal referrals—from friends, colleagues, or family members who have experienced our results firsthand. Our reputation for success has fueled our growth—from 600 approvals in 2013 to over 61,000 in 2025.

If you're looking for an experienced EB2 NIW attorney or I-140 petition expert with a proven record of success, you're in the right place.

Request a Free Evaluation today to see if you qualify—and let us help you secure your future in the United States.

Track Record of Success: EB-1 and NIW Approvals (2020–2024)

Client Testimonials

I'm very happy with all the work and advice Chen Immigration Team have put into my NIW application. The responses were always timely, the letters drafted were polite, well-structured and timely. When I got my RFE, I was worried, but with the help of the attorneys working with me, the answer to the RFE lead to approval.
Not only do the members of the team work extremely hard and with highest professionalism, they also show that they believe in their clients, are able to emphasize all the achievements better than I ever could, and they genuinely care.
Thank you so very much!
I cannot be happier with everything you've done for me!

- M, Postpoc

I would like to thank the Chen Immigration team for getting my I-140 (EB-1B) approved with no RFE. I choose premium processing and the case was approved in 13 days. The team is very professional and helpful in every step on your way to the approval. I had many questions from time to time during the preparation process and they were answered in a timely manner. I have also retained them for I-485 and hope that it will also be approved in a timely manner.

- A. K.

The best thing to happen to me in my GC process was my friend's recommendation of NAILG. They have been impeccable when it comes to keeping their promised time. They have also been giving me appropriate advice at appropriate times and have prepared a 1i140 packet that I could not have done myself in 100 years. I can't thank them enough.

- K. K., Research Scientist

2 years ago when I googled saying 'Best immigration lawyer for NIW' - It showed up Chen immigration on top of the list at Yelp. I decided to work with Chen immigration firm and now I am highly satisfied with my decision.
My EB2-NIW application has been approved after 13 months. Chen immigration helped me to submit this application. I am very much impressed the way they prepare my application for this category. They are very professional ! I have already recommended dozen of my friends to Chen immigration and will highly recommend to all those who are currently looking for immigration lawyer in USA.

- M. S., Postdoctoral Research Associate

It was a privilege to work with Chen immigration attorneys during my NIW I-140 application. They were really professional and kept the deadlines depicted by the client-attorney agreement. They will answer your questions within a day with the maximum clarity. I would definitely recommend them to anyone looking to apply for a NIW green card. Thanks once again and keep up the good work.

- I. S., Research Scientist

I decided to choose North America Immigration Law Group based on some positive feedback and experiences that some of my friends had with. Working with them was great. They are very supportive and professional and they are well familiar with the rules and process. Everything was delivered on-time exactly as they promised. My application was approved in less than 60 days
I highly recommend them to anyone who needs their service, specially for NIW category. I already have referred some of my friends to Chen Immigration Law Services and they are also very happy and satisfied with their service.

- M. M., Postdoc

Success Stories: EB-1A Approved: NAILG Helps Postdoctoral Researcher in Pharmaceutical Sciences Achieve Success in Only 18 Days (Premium Processing)

“Thank you very much for your warm message and for all the outstanding support during my I-140 EB1A petition process. I am truly grateful for your expertise, responsiveness, and professionalism throughout this important stage of my journey. I would like to extend a special thank-you to Ziqian M., who worked tirelessly and was incredibly supportive from start to finish. Ziqian’s guidance, attention to detail, and patience were deeply appreciated and made a meaningful difference in my experience. Thank you once again for your excellent service. I would be glad to recommend your firm to friends and colleagues seeking immigration support.”

Approved in 18 days

State of Residence: North Carolina

Success Stories: NIW Approved in Under 1 Month for a Lead Electronics Engineer with NAILG’s Premium Processing Support

“The whole process has been very seamless, and the attorneys at Chen Immigration are more than capable of handling and solving problems.”

Approved in 27 days

State of Residence: Pennsylvania

Success Stories: After NIW Success, NAILG Secured EB-1B Approval for a Biomedical Postdoctoral Researcher

“I feel excited about my EB1B approval, and would like to take this opportunity to thank you all for your professional help and guidance along the way.”

Approved in 144 days

State of Residence: New York

Success Stories: NIW Approval secured for a Chinese Molecular Biology and Genetics expert without any RFE

“I am thrilled to hear the wonderful news that my NIW petition has been approved! This achievement would not have been possible without your expertise and dedication. I sincerely appreciate all the hard work and support you’ve provided throughout this process.”

Approved in 313 days

State of Residence: China

Success Stories: NAILG Secures NIW Success for a Biostatistics Research Associate

“This is great news that my case got approved, thank you very much! I will definitely recommend you to my friends. Thank you again, and especially to Miss. Chen and my Attorneys, look forward to future corporations!”

Approved in 514 days

State of Residence: Wisconsin

Success Stories: NIW Granted to Software Engineer Specializing in Computer Science with NAILG

“NAILG’s team was thorough and meticulous in their case preparation. I highly recommend their services.”

Approved in 47 days

State of Residence: California

Success Stories: Egyptian Nanotechnology Expert Earns EB1A Approval in Just 16 Days Through Premium Processing

“I truly appreciate all your efforts throughout the application process.”

Approved in 16 days

State of Residence: Massachusetts

Success Story: Without Any RFE, Our Teams Secured NIW Approval for a Robotics Researcher from India

“Thank you very much for your diligent efforts in drafting my petition and recommendation letters. I also appreciate your prompt responses to my questions.”

Approved in 147 days

State of Residence: Massachusetts

Success Story: A Mechanical Engineer Earns NIW Approval With No RFE, Thanks to Our Strategic Guidance

“I am incredibly grateful for the outstanding expertise and support provided by Chen Immigration, particularly Attorney Farihah, throughout my EB-2 NIW petition process. Their meticulous approach and deep understanding of the NIW criteria ensured that my case was presented in the strongest possible manner. Thanks to their strategic guidance, my petition was approved without a Request for Evidence (RFE), an achievement that speaks volumes about their professionalism and dedication.

From the beginning, Attorney Farihah carefully crafted my petition to highlight my contributions to mechanical engineering, including my research in finite element analysis and machine learning applications in industrial automation and safety. Her attention to detail in showcasing my publications, citations, and peer-reviewed work was instrumental in demonstrating the national significance of my research.

Her responsiveness and clear communication throughout the process provided me with confidence and clarity, making a complex immigration journey far less stressful. I highly recommend Chen Immigration and Attorney Farihah to anyone pursuing an NIW approval—they truly are the best in their field!”

Approved in 480 days

State of Residence: Canada

Success Stories: Iranian Professor in the field of Materials Science Earns NIW Approval without any Request for Evidence [RFE]

“The process was well defined, and you can find everything you want in your profile. The attorney is very helpful and answers your questions within two days. One great pro is that they don’t give you false hope. The only drawback, in my opinion, was that they suggested I provide 3 independent recommendation letters that took a lot of time for me to arrange. I think I could file with 1 recommendation. At the end of the day, I definitely recommend that you file your case with them. They are professional, helpful, and available. Best of luck to you!”

Approved in 482 days

State of Residence: Iran

Success Stories: Maintenance Database Systems Manager & Analyst in Systems Engineering Obtained NIW Approval Without RFE with NAILG’s Expertise

“Thanks for the update and sharing the good news. I greatly appreciate your incredible support in this process.”

Approved in 212 days

State of Residence: Norway

Success Stories: Nepalese Teaching Associate and Technical Sales Specialist in Microbiology Earns EB2-NIW Approval

“Thank you for your help throughout the process.”

Approved in 480 days

State of Residence: Australia

Success Stories: EB1A Approved in Just Over a Year for a Chinese Engineer Advancing Space Technologies and Systems

“I appreciate your help throughout the I-140 process. Your timely response and applicable strategy demonstrate your professionalism in this process.”

Approved in 403 days

State of Residence: Canada

Success Stories: Vice President of Research in Photonics in California received EB1B Approval in just 23 Days, Thanks to Premium Processing

“I’m thankful for the team’s support throughout my EB1 as well as previous O1 processes. They were professional, responsive, and made any complicated processes feel more manageable. Getting the approval in just 23 days with premium processing was a huge relief. I appreciate their help and would recommend them to anyone going through the same journey.”

Approved in 23 days

State of Residence: California

Success Stories: NAILG Successfully Assisted an Assistant Research Scientist in Atmospheric Science to Secure NIW Approval

“Thank you very much for this exciting news, and thank you very much for your help!”

Approved in 53 days

State of Residence: Maryland

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