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 applied for EB-2 trough North America Immigration Law Group. I got the I-140 approval in one month ! I would like to greatly appreciate for their professional jobs. According to my interaction with them in filling out the I-140 application during several months, I found them very trustful and expert. Therefore it is my pleasure to highly recommend this firm to persons who like to apply for EB-2 green card or related ones. In addition, the application fee is cheaper that other immigration attorneys. Thanks a lot

- R. N., Independent Research Scientist

Thank you to the North American Immigration Law Group/Chen Immigration and Attorneys for their unwavering support and help in helping my secure my I-140 approval under EB1A and also under NIW. Their service was professional and timely. They answered my million and one questions with patience and worked with me on every stage of the process. They helped draft the letters and were open to edits and comments from me. What I also liked was that they were open to receiving suggestions from me to help strengthen my case especially when we were responding to our RFE.
Thank you to this team for working diligently and patiently with me to help build my case and get the EB1A petition approved.
I highly recommend them.

- S. V., Assistant Professor

I worked with this firm for my I-140 EB2-NIW application. They delivered everything as promised. Preparing documents for this application is a cumbersome work but WeGreened makes it really straightforward and simple. All I had to do was to write a research summary and contact my references for recommendation letters. Even for these steps they provided some samples and templates. Their messaging platform is great! Although I never talked to any of the attorneys on the phone, all my questions were responded within less than 24 hours on the messaging platform.

- B. M., RF Computational Engineer

I heard about this law firm from one of my friends who had high recommendation. Before approaching Chen Immigration Law Associates, I had personally talked to an immigration lawyer whose fee was expensive and the lawyer did not seem much positive regarding my EB2-NIW case. When I first contacted Chen Immigration Law Associates for free EB2-NIW evaluation and heard that my case is eligible for approval or refund, it energized me and made me believe that my case is strong enough too. Though communication was only through email, it was easy and reliable. The timeline set in the contract is always fulfilled. I am really happy that I chose this law firm and I highly recommend it to anyone seeking immigration advice and services. Once again, I am very thankful to the team of Chen Immigration Law Associates for all their effort in making my petition a success.

- O. P.

It was a long and tough journey to prepare the EB-1A I-140. However, with the professional assistance and prompt feedback from the NAIL firm, this process has become much easier. They always stick to the deadlines that have been promised (preparing reference letter in 10 days, petition letter in 10 days). Thank you Chen associates for your enormous help, which helped me get my case approved one day after USCIS received my Form I-140. I will absolutely recommend you to every of my friends who will be applying for the green card in the future.

- J. L., Postdoctoral Fellow

I am glad to know that my EB1 I-140 is approved. You made my dream come true. I am very thankful to North America Immigration Law Group. In addition to one's extraordinary credential, it is very important to have very good attorney for this success. Chen immigration attorneys are very brilliant and professional. They are very prompt in replying every query.
My several friends recommended Chen immigration and indeed they are great. I worked with Ms. Chen and Mr. Ingebritson. They have explained and simplified all process. Their wining strategy of selecting most useful credentials and presentation helped me in success of my case. I am completely satisfied with their service and highly recommending to everyone who is interested in employment-based green card application.
Thank you very much for all your help and advice during entire process of my application.

- P. N., Postdoctoral Fellow

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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