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 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

The efforts put forth by Chen Immigration and Attorneys has been instrumental in obtaining the approvals for my O1-A and EB-1B (I-140) petitions. The approvals came in 4 and 8 days respectively after request for premium processing. However, this did not happen overnight and neither did I want them to happen overnight. Although my credentials were in place for both the petitions, most of the time was spent on preparing the materials and revising them over and over again. I was very busy in my job and barely had time to go over revisions in a continuous basis. However, the team kept at it, always responding to my questions and carefully going over every single piece of text and supporting evidence. Being trained as a scientist during my PhD, I would say, it was more like writing an academic paper with collaborators - everybody invested time and energy into the process and in the end the paper got accepted. This is a win for us all!
It took around 5 months to prepare the materials mostly because of my intermittent involvements but it was worth the wait. That being said, the logical constructs and inferences laid down by my team of lawyers to construct the reasoning as to why I may be suitable candidate in the area of O1-A and EB-1B criteria is outstanding - there simply was not much room to refute the arguments. Very well done! I will always keep you in mind.

- P. D., Senior Research Scientist

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.

Three of my friends who already got green card in EB1 category with the help of Chen immigration recommended me to contact this firm. They gave me free evaluation and approve and refund policy for my EB1B. I don’t know about other firm but I can say that I had a very good experience with Chen immigration. My attorney guided me on every single step and never got irritated even if asked same question several times. I got the answer of all my questions within 24 hours of time. As they promised, they wrote very strong letter of recommendation and drafted my petition within timeline. I was impressed the way they presented my case in the petition and as a results my case got approved in 7 days. I would strongly recommend Chen immigration to anyone trying to get green card under EB1 category. As I heard from my friends and I also experienced that they are the best with impressive team of attorneys. Thank you so much Chen immigration. It would not have been possible without your help. You are doing really good job. Keep it up !
Highly Recommended !!!!

- Dr. S. R., Assistant Professor

I cannot describe how excited I was when I got to know that my I-140 EB1A application has been approved. This simply could not be true if without the professional help from the North America Immigration Law Group. I don't think that my background conditions were safe for this application. But I knew that their preparation strategy made my case pretty strong. Although the application was long and challenging, it was very nice to work with their team during the whole process period. They impressed me with excellence, professionalism, and highly responsiveness. I do believe that their service is the best one in the immigration business.
Thank you so much for your effort to help me get through the EB1A application. I have recommended and will be happy to continue recommending your professional team to other people who really want to be greened.

- K. J., Electrical Engineer at New York State

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

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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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