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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. degree 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 petition. 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 5,000 EB-1A, EB-1B and EB-2 NIW approval notices. In 2014 and 2015, the approval rate is 98.22% for cases using our Approval or Refund® (money back guarantee) service and 96.95% for all kinds of services.

For NIW cases, the approval rate is 99.18% for cases using our "Approval or Refund®" (money back guarantee) service and the overall approval rate for all NIW cases is 98.47%.

For EB1A cases, the approval rate is 97.25% for "Approval or Refund®" (money back guarantee) service and the overall approval rate for all EB1A cases is 95.27%.

We are one of the leading U.S. immigration law firms providing the most comprehensive services for EB-1/NIW petition with a large volume of approval cases and high approval rate.

*The number of approval notice for EB1B cases is under-estimated of the total EB1B cases we successfully petitioned because many EB1B employer petitioners did not submit G-28 and we are not the attorney on the record.

*Our approval rate is 98.47% for all NIW cases and 99.18% for "Approval or Refund®" (money back guarantee) NIW cases.

*Our approval rate for all EB-1 cases is 95.36% and 97.21% for our "Approval or Refund®" (money back guarantee) EB-1 cases.

*The approval rate statistics only include cases that were originally filed by our law firm and exclude RFE (Request for Evidence)/NOID (Notice of Intent to Deny) cases that were taken over in the middle from other law firms or DIY clients.

*In 2015, all our EB1B denials and many of our EB1A denials were issued by the same immigration officer working in Nebraska Service Center. This officer holds a significantly different adjudication standard from the rest of the officers. Without exception, the officer firstly issued a generic template NOID (Notice Intent to Deny) or RFE (Request for Evidence ) without addressing specific evidence submitted or raised specific challenges. After our response, the officer issued another template denial, without addressing any information in our RFE/NOID response.

*Most of the denied NIW cases are from the same immigration officer working in Texas Service Center, who, similarly, always issued template RFEs (Request for Evidence) and denials without addressing evidence submitted. Clients with similar credentials as those in the denials were able to get approvals from other officers.

Client Testimonial

  • Ford Motor Company
    Research Engineer

    "Thanks very much for all Chen Immigration Attorneys' help. I really enjoy the experience with you. I will refer to my friends (and I actually already did)."

    Mar 16, 2016, X. L. was WeGreened (Chen Immigration) - North America Immigration Law Group's client (from Email)
  • MSP Corporation
    Senior Research Engineer

    "Thanks very much […] I really appreciate Chen Immigration Team's work."

    Mar 16, 2016, M. C. was WeGreened (Chen Immigration) - North America Immigration Law Group's client (from Email)
  • N/A
    N/A

    "Thank Chen Immigration for your help to get my I-140 application approved."

    Mar 16, 2016, S. T. was WeGreened (Chen Immigration) - North America Immigration Law Group's client (from Email)
  • University of Maryland
    Postdoctoral Researcher

    "Thanks so much, I really do appreciate all Chen Immigration's help. I had already spread the word around about your team of lawyers to all my friends and colleagues."

    Mar 20, 2016, A. A. was WeGreened (Chen Immigration) - North America Immigration Law Group's client (from Email)
  • Queen Elephantine
    Band leader

    "My I-140 petition has been approved […] Thank Chen Immigration Team for all your guidance and support through the process. We're very satisfied customers."

    Mar 18, 2016, I. S. was WeGreened (Chen Immigration) - North America Immigration Law Group's client (from Email)
  • Schlumberger-Doll Research
    Research Scientist

    "Attorneys at North America Immigration Law Group are highly professional and responsive. They go extra miles to ensure complete and accurate filing of my case. I recommend them to anyone seeking service for EB-1A application."

    May 24, 2016, Y. T. was WeGreened (Chen Immigration) - North America Immigration Law Group's client (from Email)
  • Fordham University
    Assistant Professor

    This is an exciting news that my I-140 has been approved. I am thrilled to know it. It has been just a year I have come to the USA. A few months after my arrival to the USA, I started working towards the green card petition application and contacted Attorney Chen et all. During petition preparation, after the petitioned submission, and now I experience that only quality of an outstanding candidate is not enough to get a green card petitioned approved. Documentation in an appropriate and well-organized manner and highlighting the achievements in a compelling way is important for a green card petition approval. I got all supports timely and efficiently from Attorney Chen et all. The group is super professional and they work with guarantee.

    I would like to offer my sincere thanks to Chen group, including attorney Zhang Yida for their effort and the help for the petition! I got answered to my every concern in detail and timely. A green card is really important to me for staying smoothly in the USA and for various research grants' applications. The whole law group was very professional and knowledgeable.
  • Senior Research Associate

    I am really excited that my Form I140 was approved. I am applying EB1-A (Alien of Extraordinary Ability), the first preference of employment-based immigration. I appreciate wegreened attorney team help me to go through these. Your service was really great! I want to recommend you to my friends.
  • Postdoc

    I am very happy to let you know my I-140 petition under EB1B category was approved. “My heartfelt thanks to your team for making this happen”. I felt my case was quite safe with your expertise of handling every minute detail professionally from day one. Your service was great and thanks to you for handling my queries and bringing out such a wonderful experience and hassle free service for the last few months. I would strongly recommend your service to anyone without having a second thought!!
  • University of North Carolina
    Postdoc

    Initially, I never thought about applying for EB1A. Three months back one of my friends got approved for the green card through Chen immigration and he referred me. I approached Chen immigration. Finally, my I-140 got approved. I am extremely happy and thankful to Chen Immigration Team for preparing my I-140. You did a great job and I definitely recommend your services to other people.
  • Paradigm4 Inc.
    Senior Solutions Engineer

    Dear attorneys and others at Chen Law firm:

    I cannot say how thrilled my family and I are at the news of my approved EB1B petition. I greatly admire your firm's efforts and advice which made this possible.

    Also I would like to mention that two law firms had evaluated my case last year and said that I do not stand a good chance for an EB1B approval. I was personally mistrustful of their evaluation as I had seen good candidates at my previous employer being handed down similar evaluations by one of these firms (my previous employer used that firm for all their immigration matters) while candidates with similar profiles were being awarded EB1 because they had worked with better law firms. I believe that there are some law firms that are great in terms of H1B applications and other more routine tasks. But when it comes to more detailed technical / research-oriented applications like the EB1/NIW, they just opt for the easy way out -- i.e. they only consider someone EB1-worthy if that person has got some kind of award (e.g. NSF career grant, best-thesis award). That way, it is easy for them to prove the merit of the applicant. But in case of Chen Law firm, you do a more thorough evaluation, and put in great effort to prove the merit of the applicant to the USCIS adjudicators. The incorrect evaluation by some big law firms is a very bad service that they are providing to their clients, as missing out on the EB1 opportunity costs people many years (considering EB2 wait times for Indians/Chinese) and causes a lot of personal stress and demoralizatoin. Conversely, your firm's service provides great benefits to people such as me. Thanks again.
  • UT Southwestern Medical Center
    Postdoctoral Research Fellow

    "Thank Chen Immigration so much for your help and I will post a recommendation in MITBBS!"

    Mar 15, 2016, B. S. was WeGreened (Chen Immigration) - North America Immigration Law Group's client (from Email)
  • University of Cincinnati
    Postdoctoral fellow

    "My I-140 got approved!!!! I am extremely happy and thankful to Chen Immigration Team for preparing my I-140. You did a great job and I appreciate it."

    Mar 14, 2016, P. M. was WeGreened (Chen Immigration) - North America Immigration Law Group's client (from Email)
  • HDH Pharma Inc.
    Senior Scientist

    "I am happy and very excited about my EB1B case [being] approved after [a] couple of RFE's. I am extremely grateful to the attorneys and other staff at Chen Immigration for handling my case with care and patience and bringing it to a successful completion. I appreciated your effective and very quick work. And I will certainly spread the words among my friends and colleagues […] Thank you very much for your great work!"

    Mar 14, 2016, G. P. was WeGreened (Chen Immigration) - North America Immigration Law Group's client (from Email)
  • Baker Hughes Incorporated
    Research Development and Design Chemist

    "Thank North America Immigration Law Group so much for everything. I really appreciate all your help."

    Mar 18, 2016, S. P. was WeGreened (Chen Immigration) - North America Immigration Law Group's client (from Email)
  • Shell Technology Center Houston
    Flow Assurance Engineering

    "Thanks. I really appreciate all Chen Immigration Team's help."

    Apr 11, 2016, S. J. was WeGreened (Chen Immigration) - North America Immigration Law Group's client (from Email)
  • Hewlett-Packard Company
    Software Engineer

    "The online myUSCIS Case Status shows my NIW-140 was approved. Thank North America Immigration Law Group very much for your outstanding work!"

    Mar 12, 2016, J. N. was WeGreened (Chen Immigration) - North America Immigration Law Group's client (from Email)
  • University of Oklahoma
    Research Associate

    "I am so excited to hear this great and wonderful news!!!! WOW! Thanks Chen Immigration guys for helping with this process"

    Mar 14, 2016, J. D. was WeGreened (Chen Immigration) - North America Immigration Law Group's client (from Email)
  • I have just received the Notice of Approval for EB1A. It took me only 5 months to get the I-140 approval from the beginning of evaluating the possibility of EB1a by Mrs Chen to the date of getting the approval. I am very appreciate for the team of North America Immigration Law Group. Your encourage, guidance, professional knowledge and skills help me to achieving my goal. I really enjoyed working with your team. Your prompt, courteous and professional responses made an effective and smooth application process. I cannot image what will be without your help.You screened the most useful and strong supporting marterial from my miscellaneous documents, and composed powerful petition letter,which eventually lead to success. Thank you all very much! I would like to recommend you to people who wish to EB1A.
  • It has been a pleasure working with the Wegreened Team. I always received prompt, courteous and professional responses from them throughout the EB1A filing process. They guided me in developing the material for the reference letters, drafted the letters in a timely manner and prepared a strong case which eventually lead to success. I am really grateful to them for all their help.

Success Stories: NIW Petition Approval for Postdoctoral Fellow in Iran in the Field of Industrial Engineering Makes him Eligible for Immigrant Visa Processing

Thanksssssss a lot. I am really happy...

Approved in 250 days

State of Residence: N/A

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Success Stories: 8 Days after Filing, an EB-1A Petition Was Approved for a Postdoctoral Fellow in Kansas in the Field of Computational Chemistry

Thank you Chen Immigration law firm for the filing of the I-140.

Approved in 8 days

State of Residence: Kansas

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Success Stories: USCIS Grants EB-1A Petition Approval to Postdoctoral Scholar from China in the Field of Electrical Engineering

That is really great news. Thank you all very much for all the help and patience. I will definitely recommend wegreened to my friends. [...] Thanks again. I appreciate the time we worked together. All the best.

Approved in 11 days

State of Residence: California

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Success Stories: EB-1A Petition Approved by Nebraska Service Center for Postdoctoral Research Associate in Minnesota in the Field of Medicinal Chemistry

Big relief; Thank you so much. You folks did a wonderful job. Surely, I will recommend your firm to my friends. Thank you again.

Approved in 53 days

State of Residence: Minnesota

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Success Stories: EB-1A Petition Approved for California-based Scientist from China with 136 Citations in the Field of Biochemistry

WOW!! Thank you so much for letting me know this exciting news! My family and I want to thank the whole law group, especially attorney Elizabeth Wharton, for the effort and the help she has given me! She answered my every question in detail and responded emails very quickly. I'm very thankful for her efforts in assisting me with I140 case preparation. Application of the green card is really important to me and my family. The whole law group was very professional and informative.

Approved in 51 days

State of Residence: California

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Success Stories: Employer-Petitioned EB-1B Approved in 9 Days for Chinese Research Scientist in the Field of Molecular Biology

Thank you very much for your time and effort on my I-140 process! I am very glad to know that it has been approved.

Approved in 9 days

State of Residence: Maryland

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Success Stories: One Week after Filing, California-based Postdoctoral Scholar in the Field of Pharmaceutical Sciences Receives EB-1A Petition Approval

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 week 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.

Approved in 7 days

State of Residence: California

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Success Stories: EB-1A Petition Rapidly Approved in 2 Days for Research Associate in Maryland in the Field of Immunology

Thank you so much for all your help. It was extremely fast.

Approved in 2 days

State of Residence: Maryland

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Success Stories: NIW Petition Approved for Russian Postdoctoral Fellow in Washington in the Field of Microbiology

Thank you for your assistance in preparation of the petition! You did a great job and I would highly recommend your services to other people.

Approved in 252 days

State of Residence: Washington

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Success Stories: NIW Petition Approved after Nearly 2 Years for Postdoctoral Research Associate in Indiana in the Field of Bioengineering

Thank you for your help and support through the difficult and long waiting time!

Approved in 500 days

State of Residence: Indiana

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Success Stories: Visiting Assistant Research Scientist from South Korea in the Field of Medicinal Chemistry Received NIW Petition Approval from Nebraska Service Center

Thank you for your great help, and have a great day!

Approved in 251 days

State of Residence: Michigan

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Success Stories: NIW Petition Approved in 8.5 Months for Postdoctoral Researcher from Nepal in the Field of Physics

Again thank you for your support. I do not have single complain about your work throughout this process and I definitely will recommend my friends and for some I already did.

Approved in 259 days

State of Residence: Virginia

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Success Stories: EB-1A Petition Approved by Nebraska Service Center for Chinese Postdoctoral Fellow in Maryland in the Field of Biochemistry

I received approval notice today. Thank you a lot for your help.

Approved in 37 days

State of Residence: Maryland

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Success Stories: Postdoctoral Fellow from India in the Field of Immunology with 66 Citations Receives EB-1A Petition Approval

Thank you for all your help and guidance with the EB1A application. It is great that we got through without an RFE and everything went smoothly.

Approved in 10 days

State of Residence: California

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Success Stories: NIW Petition Approved for Iranian Research Assistant in South Carolina in the Field of Electrical Engineering

Let me express my gratitude toward you for your very professional, caring, and fast process of filing the visa.

Approved in 79 days

State of Residence: South Carolina

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