North America Immigration Law Group (Chen Immigration Law Associates) 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 16,000 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 approved cases grew from 600 in 2013 to over 3,500 in 2019. See what our clients have to say about our service.

Approval Rate For EB1 / NIW / O1A Cases Filed By North America Immigration Law Group From 2015 To 2019

Client Testimonials

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

I will definitely recommend North America Immigration Law Group to all my friends who is seeking for immigration services. I am very, very impressed by their excellent service. The entire process is very professional and they have been responsive and responsible. They will do their best in every little detail to make you case stronger. Their service and attitude towards every case define their high reputation.

- B. H., Postdoctoral Research Fellow

When i looked at all the reviews for the immigration firm, Chen immigration caught my attention for two reason, effective clear communication and their experience to approve otherwise difficult cases. After the initial free evaluation by their experienced attorneys they presented me with step by step instructions and options. I took a week to understand and signed the contract with them. My only concern at that time was not seeing the firm in person as everything is online, However that concern was gone as i saw their work ethics. They are super professional and respect the timelines and deadlines. they meticulously prepare all the documents, which is really important for such cases. I had a wonderful experience with them. I had already recommended two of my friends to hire them. I hired them for both I-140 and I-485. My I-140 was filed with PP and I received the approval in 8 days.

- L. S., Postdoctoral Fellow

My EB1A was approved four days after USCIS received my documents. I'm very impressed by the professionalism and enthusiasm of NAmILG during preparation and filing of my case. The prompt approval of my case wouldn't be possible without the expertise and hard working of the attorneys of NAmILG.
One of the advantages of NAmILG I want to point out is they drafted all of the required letters, which saved huge amount of time for me. I'll definitely recommend to my friends who are looking for immigration attorneys.

- T. W., Postdoc

The fact I like most about the Chen Immigration and Attorneys is their communication systems and responses. Throughout the whole application process until approval, I had lots of questions in different phases regarding case file preparation, EAD cards, travel with AP, service request etc. What I needed to do was to leave a message in the case management system and got detailed and satisfactory responses in a timely manner.
Their services ranging from the free evaluation at the first day to case preparation and drafting recommendation and petition letters have exhibited high professionalism and standard. I would suggest anyone to retain them for his/her I140 and I485 case preparation.

- S. A., Postdoctoral Researcher

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

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Success Stories: Along with EB-1A approval, A Postdoctoral Scholar in the Field of Electrical Engineering Secures NIW Approval as well, Despite a Long Wait

I am so glad to know that it is approved! It was a great experience working with your team. Thank you very much for your great help and support!

Approved in 12 days

State of Residence: Indiana

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Success Stories: A Postdoctoral Researcher from Korea Secures I-140 NIW Approval in the Field of Materials Science with Our Team’s Vigilant Assistance

Thank you so much for your assistance!

Approved in 352 days

State of Residence: N/A

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Success Stories: A Postdoctoral Associate in the Field of Molecular Biology Secured NIW Approval with Our Honed Petition Packet

I highly appreciate Wegreen team’s help on getting my NIW petition approved. They offered clear and prompt responses all the time. I would recommend the firm to whomever need the same service.

Approved in 289 days

State of Residence: Maryland

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Success Stories: We Helped a Bangladeshi Graduate Research Assistant in the Field of Transportation Engineering Secure NIW Approval Without any RFE Issuance

I really appreciate your support throughout the process. Thank you!

Approved in 332 days

State of Residence: North Carolina

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Success Stories: With the Undaunted Support of Our Law Firm, A Research Scientist from Turkey Secures EB-2 NIW Petition Approval

I would like to take this as an opportunity to thank every member of NAILG who contributed to my petition package. You did a great job. Thank you very much!

Approved in 223 days

State of Residence: Indiana

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Success Stories: Postdoctoral Scholar Secures EB-1A and NIW Petition Approvals 3 Months apart with Our Constant Support

I am very satisfied with your service. Thank you so much!

Approved in 314 days

State of Residence: N/A

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Success Stories: Postdoctoral Scholar Secures EB-1A and NIW Petition Approvals 3 Months apart with Our Constant Support

I am very satisfied with your service. Thank you so much!

Approved in 15 days

State of Residence: N/A

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Success Stories: An Application Scientist from India Secured NIW Petition Approval in Less than 7 Months (46 Citations)

I was very happy with the entire process of working with Chen immigration group. They are very meticulous in their fact gathering process and were prompt in answering my questions. I would definitely choose to use their services again.

Approved in 204 days

State of Residence: Iowa

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Success Stories: A Research Assistant from China Secured Not Only One but Two I-140 Petitions Approval (NIW & EB1A) 4 Months apart in the Field of Electrical Engineering

Thanks for letting me know. It is fantastic news. I really appreciate your help and support all the way along.

Approved in 312 days

State of Residence: N/A

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Success Stories: A Research Assistant from China Secured Not Only One but Two I-140 Petitions Approval (NIW & EB1A) 4 Months apart in the Field of Electrical Engineering

Thanks for letting me know. It is fantastic news. I really appreciate your help and support all the way along.

Approved in 57 days

State of Residence: N/A

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Success Stories: A Postdoctoral Associate from India Comes Closer to Green Card Success with Two I-140 Petition Approvals (NIW + EB1A)

That is great news! Thank you for all the help.

Approved in 232 days

State of Residence: N/A

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Success Stories: A Postdoctoral Associate from India Comes Closer to Green Card Success with Two I-140 Petition Approvals (NIW + EB1A)

That is great news! Thank you for all the help.

Approved in 49 days

State of Residence: N/A

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Success Stories: A Network Hardware Engineer from China with I-140 NIW and EB1A Petition Approvals

Really appreciate what WeGreen’s help on my green card applications. They are super professional and capable. They complete my application package completely based on my background, and digout what merit could distinguish me.

Approved in 207 days

State of Residence: California

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Success Stories: A Network Hardware Engineer from China with I-140 NIW and EB1A Petition Approvals

Really appreciate what WeGreen’s help on my green card applications. They are super professional and capable. They complete my application package completely based on my background, and digout what merit could distinguish me.

Approved in 224 days

State of Residence: California

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Success Stories: Our Diligent Team Supported a China-based Postdoctoral Research Scholar Secure NIW Approval, No RFE No Obstacles

Thanks for your hard-working and support for my NIW Case. I am very glad to cooperate with wegreened.com now and in the future.

Approved in 247 days

State of Residence: N/A

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