North America Immigration Law Group (Chen Immigration Law Associates - WeGreened®) is a U.S. immigration law firm dedicated to representing corporations, research institutions, and individuals from all 50 U.S. states regarding I-140 immigration petitions. We specialize in employment-based immigration petition and have a proven record of high success rate for the categories of: EB2-NIW (National Interest Waiver), EB1-A (Alien of Extraordinary Ability), EB1-B (Outstanding Researcher/Professor) and O-1 (Alien of Extraordinary Ability).

Our Ten Thousand I-140 Approvals Provide Unprecedented Insight into the USCIS Adjudication Trend
With more than 58,000 EB-1A, EB-1B, EB-2 NIW and O-1 cases approved, we have first hand information on the manner in which the USCIS adjudicate I-140 cases. As the USCIS has constantly changed its adjudication standards for the EB-1A, EB-1B and EB-2 NIW categories, our firm's huge database of successful cases gives you unprecedented insight to USCIS adjudication trends. We carefully analyze the data for all of our cases and apply the results of our analyses toward giving our clients up-to-date advice and adapting our strategies such that we remain on par with the ever-shifting landscape of immigration law in the U.S. With us, you will always have access to important updates, strategies, and information so that you can make the most informed decisions about your case.

We Have Helped Hundreds and Thousands of Clients with Credentials and Backgrounds Similar to Yours
With our exceedingly large number of successful petitions, no matter what credentials you have, no matter your background and field of expertise, no matter your visa status or nationality, chances are we have helped hundreds or even thousands of clients just like you. Our clients are usually impressed with how well we understand their research and work. Our insight and understanding stems from the fact that we have handled many cases with elements similar to yours already, and this helps us devise the best strategies for each individual petition.

Please see our success stories at https://www.wegreened.com/blog/

Vast Majority of Clients Came to Us Because of Referrals
For years, our firm has attracted new clients based solely on word of mouth, recommendations, and the positive collaboration experiences shared with them by their friends and family. We take pride in our reputation and work hard to ensure that we provide a green card application experience that our clients are happy to share with their friends and colleagues. That is how our cumulative total of approved cases grew from 600 in 2013 to over 58,000 in 2025. See what our clients have to say about our service.

Approval Rate For EB1 / NIW Cases Filed By North America Immigration Law Group From 2020 To 2023

Client Testimonials

I greatly appreciate Chen Immigration Law team for all the help and support, and for their very professional service, from the beginning to the end of my I-140 approval!<
My experience with them with filing my EB2-NIW petition steamily positive. They are professional, well-mannered, timely, and helped us steered through the complex petition process.
I talked with couple of others law firms but find out that Chen Immigration has refund policy, means that they do their homework according to your case before file the case. Which give me more confidence. At the end I figure out that the work very hard to prepare my case. I highly recommend to people if they want to apply for I-140.

- M. W. M, Enterprise Applications Administrator and Developer

I'm so excited that my I-140 got approved within such a short time! I do think the North America Immigration Law Group did a great job. They are so patient to answer lots of my questions. The recommendation letters and petition letter are well prepared. That saved lots of my time! I will definitely recommend to my friends, as well as other people who prepare to apply for green card!

- X. L., Postdoctoral Fellow

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

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

It was fantastic to work with Chen Immigration Law Group. I got my I140 approval just in 4 months.Chen Immigration Law Group is a very professional company.They answered all my questions with timely manner and prepared my I140 package really good that I received my approval way before than I expected. I also really like their online service which makes everything easy to understand and to follow the instructions correctly and help you to handle such a complex paper work efficiently.

- A. C., Postdoc

Many thanks to Chen immigration & Attorneys for their great help, and I had a very good experience working with this professional attorney team, they prepared high quality recommendation letters and petition letters, provide guide in detail and response questions in time, I am lucky to have such a team to help me get the approval. I strongly recommended them to all who are seeking green card.

- Y. H., Postdoctoral Research Associate

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Success Stories: In Just 5 Days, a Postdoctoral Scholar in the Field of Civil and Environmental Engineering Secured NIW Approval, Special Thanks to Funding Support from 5 Major Sources

Thank you and congratulations to you as well. I've seen firsthand the high standard of your professional work, and I'm eager to write a strong review for you on your platform!

Approved in 5 days

State of Residence: California

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Success Stories: A Visiting Scientist Achieves EB1A Case Approval With the Help of Our Assistance in Just 6 days

Sure, I am so glad to receive this news and surely would like to share this success. Thank you all!

Approved in 6 days

State of Residence: Maryland

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Success Stories: EB-1A Petition Approved for Indian Research Scientist in the Field of Physics in Just A Week

Thank you for sharing the wonderful news about the approval of our EB1A application! We are very happy and grateful for the professionalism you demonstrated throughout the case preparation. This approval would not have been possible without your expertise and dedication.

Approved in 7 days

State of Residence: Massachusetts

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Success Stories: NIW Approval Secured In 6 Days For Chinese Senior Analyst Working in the Field of Mathematical Modeling

Thank you for the notice! I can't believe it got approved so quickly!

Approved in 6 days

State of Residence: Texas

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Success Stories: Thanks to Our Team’s Efforts, an Egyptian Silicon Architect in the Field of Advanced Computing Gets NIW Approval in Only 3 Days

Thank you so much for everything. It has been my pleasure working with you. You are truly and genuinely very professional and very good at what you do. You made this process much easier for me. I have friends who are applying for NIW through the law firm Google works with but their process and progress is much slower and difficult than working with you. I left a 5-star review on both your firm's website and Google Maps.

Approved in 3 days

State of Residence: California

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Success Stories: In Only 6 Days, an Egyptian Technical Specialist Engineer in the Field of Mechanical Engineering Secures NIW Approval

Thank you! This is great news!

Approved in 6 days

State of Residence: Washington

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Success Stories: EB-1A Petition Approved for Indian Principal Scientist in the Field of Cancer Epidemiology in Only 6 Days

It has been my pleasure to work with y'all as well.

Approved in 6 days

State of Residence: Georgia

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Success Stories: In Only A Week, Mexican Postdoctoral Research Associate in the Field of Toxicology Secures NIW Approval

Approved in 7 days

State of Residence: Illinois

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Success Stories: In 6 Days, A Nigerian Ph.D. Candidate in the Field of Chemistry Secured NIW Approval

Thank you so much! This is such a great news!!!

Approved in 6 days

State of Residence: Nigeria

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Success Stories: In Just 2 Days, a Mexican Research Assistant in the Field of Neuroscience Secures NIW Approval

Approved in 2 days

State of Residence: Mexico

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Success Stories: EB-1B Petition Approved After Only A Week for Director of Emerging Technologies in the Field of Artificial Intelligence

I am so glad to see the approval. I can't thank you enough for all your support in this petition.

Approved in 7 days

State of Residence: India

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Success Stories: Scientist from Iran Working in the Biomedical Engineering Field Gets I-140 NIW Approval

Thank you for your efforts. I truly appreciate.

Approved in 114 days

State of Residence: Iran

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Success Stories: An Associate Scientist from India Achieves EB-1A Approval in the Field of Biotechnology, Thanks to Our Exceptional Support and PP Service

I truly appreciate the time and effort you invested in ensuring that every step of the process went smoothly. Your professionalism and clear communication gave me peace of mind, and I am incredibly grateful for your guidance. 

Approved in 22 days

State of Residence: California

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Success Stories: EB-1A Approval Secured For A Postdoctoral Fellow in Just 12 Days with the Help of Our Team and Premium Processing

Thank you so much for your support and assistance! I truly appreciate all the efforts you’ve put into my case.

Approved in 12 days

State of Residence: Georgia

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Success Stories: Engineer from China Secures I-140 NIW in just 47 Days With the Help of Premium Processing

Fantastic news! It has been a pleasure working with the WeGreened team as well!

Approved in 47 days

State of Residence: California

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