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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:

We keep close track of the latest immigration trends and regulations of USCIS (U.S. Citizenship and Immigration Services), decisions of AAO (Administrative Appeal Office) and judicial review opinions. The massive collected material contributes to the winning strategies for our clients' cases.

Approval of each case is the goal of our law firm. The key to our success is how we present supporting evidence and the high-quality petition letters based on systematic knowledge and comprehensive database developed by our firm. To provide the best immigration service, North America Immigration Law Group only hires attorneys with J.D. degrees from top law schools.

We have one hundred percent confidence in our capability to successfully represent our clients, and we are the only U.S. immigration law firm with refund policy on I-140 petitions. This is not an empty guarantee but specifically laid out in the attorney-client contract and is binding on our law firm.

We are pleased to announce that North America Immigration Law Group has so far received over 7,500 EB-1A, EB-1B and EB-2 NIW I-140 approval notices. In 2015 and 2016, the approval rate is 97.9% for cases using our Approval or Refund® (money back guarantee) service and 96.9% for all cases.

Our approval rate is 99.6% for NIW petitions using our "Approval or Refund®" (money back guarantee) service and the overall approval rate for all NIW cases is 99.2%.

In terms of EB1A petitions, the approval rate is 96% for cases entitled to our "Approval or Refund®" (money back guarantee) service and the overall approval rate for all EB1A cases is 94.3%.

As one of the leading U.S. immigration law firms providing the most comprehensive services focusing on EB-1/NIW petitions, we are proud to maintain our high approval rates with a large volume of approved cases.

* The number of EB1B approvals is under-estimated because we calculated our approval rates based on the approval notices we received. Some EB-1B petitioning employers did not submit a G-28 so only the employers received the approval notices.

** One denied case was not originally filed by our firm. We took the case after an RFE (Request for Evidence) was issued and the case was denied after the RFE response.

*** Among 125 EB-1A denials, 71 were processed in NSC (Nebraska Service Center) and 54 were processed in TSC (Texas Service Center). The majority of the EB-1A denials processed in NSC were issued by officers who requested thousands of citations for EB-1A approval.

In 2015-2016, our approval rate for O1A I-129 cases is 100%.

Note: These statistics are based on the final adjudication received in the specified year. Some of the cases were approved after appeal, motions, or re-filing.

Client Testimonial

  • research associate

    I am a research associate. Thanks for the great efforts of WeGreened, my EB1A application was approved at NSC through premium processing.
    I will strongly recommend WeGreened to my friends.
  • Postdoctoral researcher in High Energy Physics

    Over 15 months! Yes, it was the time interval between the filing date of I-140 and approval date. I received the most generic RFE ever. I believe I filed my NIW petition twice!
    At the end I am happy to receive the approval notice.
    Thanks to Chen group who patiently and professionally accompanied me in this procedure!
  • Research associate

    I was very excited to receive my approval notice of NIW petition in about two months. During the case preparation, the attorneys at Chen Immigration Law Associates were highly professional and efficient. I have an excellent experience of working with them. I will recommend them to my friends and colleagues who are considering green card application.
  • Professor

    I'm a professor at one university in Beijing. I was very excited to receive my approval notice of EB1A petition at 14th day with premium processing. During the case preparation, the attorneys at Chen Immigration Law Associates are highly professional and experienced. Especially, they possess a lot of know-hows about EB1 petitions that significantly improve your approval chance. In conclusion, I have an excellent experience of working with them. Also, I will always recommend them to my friends and colleagues who are considering the immigration.
  • computer science graduated
    I received my letter for approval notice of my I-140 case within 2 months.
    I am so happy that selected Victoria Chen's group as my attorney.
  • Post Doctoral Research Fellow

    I received my I-140 (EB2-NIW) approval letter on July 28th, 2017, within a little over 2 months. It was a great pleasure working with Victoria Chen's group and I would like to extend my sincere thanks and appreciation for providing exceptional service and guidance throughout my application process. They are doing an extraordinary job in helping out so many people with the application process and wish them all the success in the great work they continue to do. I would highly recommend Victoria Chen's group to anyone looking to get some assistance in applying green card.
  • Mississippi State University
    Post Doctoral Research Associate

    I received my letter for approval notice of my I-140 case (EB2-NIW category) within 3 months. I am glad that I chose WeGreened/Chen Immgration Law Group to help me. They are worked very hard in responding to questions and always provides useful informative answers. I already recommended Ms. Victoria Chen and her excellent team to my friends.
  • Research fellow

    I got my I-140 approved via EB2-NIW category within 2 months. I am glad that I chose WeGreened/Chen Immgration Law Group to help me. They are prompt in responding to questions and always provides useful informative answers. I already recommended working with this team to my friends and they are in the process of filing their case.
  • Research Associate

    I am a Research Associate working on Cancer Research. I am extremely thankful to Ms. Victoria Chen and her excellent team in assisting me with my EB1A filing. Right from the beginning, they have been very professional and have guided me in an excellent way. They took great care in addressing all my doubts and concerns regarding my case. Their firm gave me great comfort that I was never hesitant in sharing any of my concerns with them; additionally, they evaluated all my questions and advised me that made my profile even better. I have full faith in her team and would strongly recommend anyone, who is really seeking to obtain a Green Card. My case was pretty strong with 263 citations, 14 publications, more than 22 reviews and was guaranteed an "Approval or Refund" service. However, I was issued an RFE. Ms. Chen's team guided me through the preparation of a strong response letter to the RFE and my I-140 was approved in a week after the initial RFE response submission at the NSC. They always respond to my emails within 24 hours and the best part is that they genuinely care about their client's success. Thank you so much dear Ms. Chen and your entire team! You are simply the best in your field.
  • Post Doctoral Research Associate

    I am currently a postdoc in the US and my EB1A was approved within 13 days of filling the petition. I have 22 publications, 211 citations and 56 times review experiences when we filled the petition. Initially, I didn't get their "Approval or Refund" service but as my case was getting stronger (I mean more papers published and more citations and reviews accumulated) they upgraded my case to "Approval or Refund". I really appreciated their help and service. They answered my questions within 24 hours as they promised. Thank you so much Ms. Chen and all your colleagues!
  • Post Doctoral Research Associate University of Miami

    I am a Postdoctoral researcher working in the field of pancreatic cancer and my EB1A petition has recently got approved at TSC within 12 days of filing the petition. I am extremely happy and satisfied with Ms. Chen and her team for their outstanding immigration service. The best part was the confidence you have in your service which is seen through the approval or refund policy for EB1A filing.You also helped me a lot in improving my profile by providing appropriate suggestions and advices. I really feel that you are the best in the field. I will definitely recommend you to all my friends.
  • I am a phD student and get my EB1A approved at NSC with premium processing. I would highly recommend Ms. Chen and her team for the immigration service! I am very happy with their work and appreciate their service.
  • Cardiologist, researcher

    My EB-1A recently got approved at NSC. I thank your for your excellent work. I have had other immigration lawyers before. you are the best. I have already recommended you to all my friends.
  • My EB2 petition is just approved. Chen immigration team has been taking care of all the legal/documenting things in a most convenient way and I am very happy with working with them. I strongly recommend everyone who looks for such an attorney service.
  • Data Scientist

    My EB1A petition is approved early this week from NSC. Initially I had an RFE from a difficult officer. Chen immigration team has prepared a strong response which resulted in approval of my petition. I would highly recommend VC firm as they are very experienced professional and have a great knowledge.
  • Chemist

    My EB1B I-140 case got approved early this week with premium processing service at Texas Center. I would like to thank Chen Immigration Team for their diligent work through the whole process. They are fast responsive, careful, and highly knowledgeable. I also retained Chen's team for my I-485 case.
  • Internal Medicine Physician, Researcher.

    My EB1A approved today with premium processing service at Texas Center after 5 days (including saterday/sunday).
    Chen Immigration team was meticulously careful, and extremely help during this process. They answered all of my concern in very timely responsive manner.
    5 of my friends already got EB1A though this team, so I was well aware of effort and work of this team.
    I would highly recommend to anyone persuing this journey.
  • PhD Student in Civil Eng.

    My I-140 petition has been approved after 63 days of filing. Chen Immigration Team guaranteed my case after a free evaluation. I became familiar with their service by some of my friends who had successful experience of working with them. Chen's team is perfect in their job. I really like the clear procedure they offer. Working through the account they made was awesome, because everything was channelized. Managing the needed files to upload and message through the account was smooth and fast. They answered my questions clearly and completely mostly at the same day I asked. I highly recommend this team as I already recommended working with this team to a couple of my friends and they are in the process of filing their case.
  • PhD in civil engineering

    I received my I-140 approval after almost 50 days. Chen Immigration attorneys are extremely expert in what they are doing. They guaranteed my case for a full refund, and this gave me motivation and confidence to go through this process, although I had other alternatives on the table. I do not doubt that at this point the only reliable law firm to perform NIW cases is CHEN IMMIGRATION. I highly recommend them. I am also a messenger from my other friends who chose Chen, and all of them are completely satisfied with their services.
  • Sustainability professional.

    Today my EB-1A petition got approved in less than 2 weeks! Such a terrific news. I really appreciate your excellent and professional service.

    I hold two master's degrees in engineering and science from top schools in S. Korea and the US, respectively. I retained the Chen immigration group for both EB-1A and EB2 applications. We started with the EB-1A and from the first day the Chen group was so responsive, meticulous and detailed oriented. They drafted all my recommendations letter and my petition in a perfect way and personally I was not that optimistic to get my EB1A approved! But thanks to their excellent service, I got my I-140 approved in less than 2 weeks (with PP service).

    I highly recommend this group to anyone, even those who don't have that much hope to get their I-140 approved, I would recommend to consult with them. If they accept your case, just rely on them and move forward.

    Again, I appreciate all your time and efforts you put into my case, this would not be possible without working with you guys.

Success Stories: EB-1A Petition Approved in 12 Days for Research Associate in Texas in the Field of Materials Science

very appreciate for all your efforts in my petition process.

Approved in 12 days

State of Residence: Texas

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Success Stories: After Nearly a Year, a Postdoctoral Research Fellow from Singapore in the Field of Computational Chemistry Obtains NIW Approval

NAILG did a very professional job of helping me with the EB-2 NIW application. I would recommend them to graduate students and postdocs who are seeking to secure their employment future in America.

Approved in 345 days

State of Residence: Washington

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Success Stories: NIW Petition Approved for Adjunct Associate Research Scientist in New York in the Field of Neuroscience

Thank you very much for all of your kind help and excellent advice on everything.

Approved in 500 days

State of Residence: New York

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Success Stories: EB-1A Petition Approved for Senior Research Associate in Oregon in the Field of Microbial Genetics

Thank you all for your efforts putting into my case.

Approved in 98 days

State of Residence: Oregon

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Success Stories: EB-1A Petition Approved in 8 Days for Postdoctoral Researcher from China in the Field of Materials Engineering

I tracked on USCIS website and found my case was approved. That is awesome, good job, thank you!

Approved in 8 days

State of Residence: Illinois

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Success Stories: NIW Petition Approved for Iranian Senior Circuit Design Engineer in California in the Field of Electrical Engineering

Finally, I received the I-140 approval. Thank you for your message.

Approved in 349 days

State of Residence: California

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Success Stories: EB-1A Petition Approved in 8 Days for Postdoctoral Research Associate from China in the Field of Physics

Thanks very much. Your people did a great job.

Approved in 8 days

State of Residence: Arizona

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Success Stories: EB-1A Petition Approved in 9 Days for Chinese Postdoctoral Researcher with 106 Citations in the Field of Materials Science (PP Requested)

I am completely satisfied with your work.

Approved in 9 days

State of Residence: Delaware

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Success Stories: EB-1A Petition Approved in 12 Days for Marine Biotechnology Expert from India (PP Requested)

My thanks to Chen immigration group for approving my i140 under EB1-A (PP). Being a H4 visa holder I understand my case was handled with utmost care and professionalism. Your staff (lawyers) were always easy to reach. Most of all their availability to fix potential problems and explain the on-going process spared me from anxieties of many a kind. With my five page presentation of my project, you have drafted the most suitable and convincing reference letter in addition to giving me new insights to consider options I have never thought of. Your lawyers are everything one wants in a counsellor. With the amount of errors and inconsistencies that were eliminated, I am sure the petition drafted will be in my favour on consideration by the USCIS. But for you, I cannot imagine my case being accomplished more comfortably than it is. Thanks a ton. Many thanks to you once again for the knowledgeable, courteous, efficient advice and services you provided as we navigated through this process. I have no hesitation in recommending your firm to any other individual or institution seeking immigration advice and guidance only because my experience has been friendly, professional and fruitful.

Approved in 12 days

State of Residence: North Carolina

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Success Stories: A South Korean Principal Design Engineer was Found Eligible for NIW Approval and Will Now Undergo Immigration Visa Processing

Thank you. I have waited long and finally I'm happy.

Approved in 425 days

State of Residence: NA

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Success Stories: After Waiting 16.5 Months, a Senior Design Engineer from India in the Field of Nanotechnology Finally Received NIW Approval

Today I got my approval notice :)

Approved in 496 days

State of Residence: New York

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Success Stories: NIW Petition Approved for Mechanical/Industrial Engineer in New York with 29 Citations in the Field of Mechanical Engineering

Good news.

Approved in 432 days

State of Residence: New York

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Success Stories: A Michigan-based Ph.D. Candidate/Research Assistant in the Field of Mechanical Engineering Gets NIW Petition Approved

Thank you for the update.

Approved in 275 days

State of Residence: Michigan

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Success Stories: Assistant Professor from Bangladesh in the Field of Software Engineering Finally Receives NIW Approval after Over a Year of Waiting

Thank you so much for your help.

Approved in 392 days

State of Residence: Illinois

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Success Stories: EB-1A Petition Approved for a Chinese Ph.D. Candidate in Maryland with 103 Citations in the Field of Pathobiology

Your team worked very efficiently and professionally, and made my application process clear and smoothly. I am very happy and very appreciate all of your kind help with my petition.

Approved in 328 days

State of Residence: Maryland

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