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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

  • 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.
  • Weill Cornell Medical College
    Postdoctoral associate

    I was recommended to work with Chen Immigration Team by my friend who also had a successful application. Even though I am relatively in the entry level stages of research, the Chen Immigration Team helped in highlighting all my records in ways I would never think about. They paid close attention to details and provided really well put drafts for everything. I was so fortunate to work with a team that is very organized and so prompt and professional in their replies though being in other states. I now recommend all my friends to work with this group. I would never have been able to do such a job without getting any RFEs by myself. Thank you very much. I am forever appreciative of your work ethics and success.
  • University of Texas at Austin
    Assistant Professor

    "Thank Chen Immigration Team for your message; this is fantastic news indeed."

    Mar 22, 2016, A. K. was WeGreened (Chen Immigration) - North America Immigration Law Group's client (from Email)
  • Boston Children’s Hospital
    Research Fellow

    "We checked our case status, and it was approved. Ya!! […] Thank Chen Immigration Team."

    Mar 12, 2016, R. L. was WeGreened (Chen Immigration) - North America Immigration Law Group's client (from Email)
  • Indiana University School of Medicine
    Research Associate

    "Thank Chen Immigration very much for your wonderful service and professionalism. You and your team are so good that I have already recommended your firm to several of my friends and will continue to do that."

    Mar 14, 2016, D. G. was WeGreened (Chen Immigration) - North America Immigration Law Group's client (from Email)
  • Becton Dickinson and Company
    Senior Engineer

    "I'm extremely delighted to hear this news. I want [to] thank [the] Chen Immigration team for their extremely thorough, systematic and meticulous approach throughout the entire I-140 process. I thank you very much for all your help and support."

    Mar 14, 2016, M. K. was WeGreened (Chen Immigration) - North America Immigration Law Group's client (from Email)
  • University of Chicago
    Postdoctoral fellow

    "Thanks a lot for Chen Immigration's great help. "

    Mar 21, 2016, J. L. was WeGreened (Chen Immigration) - North America Immigration Law Group's client (from Email)
  • Iowa State University
    Postdoctoral Research Associate

    "I received the approval notice of my case. I really appreciate North America Immigration Law Group's help during the whole process. My case would not go so smooth without your assistance."

    Mar 15, 2016, C. X. was WeGreened (Chen Immigration) - North America Immigration Law Group's client (from Email)
  • Cornell University
    Postdoctoral Associate

    "I'm glad to hear the great news that my I-140 was approved. I appreciate Chen Immigration Team's help."

    Mar 10, 2016, S. C. was WeGreened (Chen Immigration) - North America Immigration Law Group's client (from Email)
  • SanDisk Inc.
    Senior Device Engineer

    "Thanks for Chen Immigration Team's help in the case. I will definitely recommend this firm to my friends and others."

    Mar 11, 2016, M. M. was WeGreened (Chen Immigration) - North America Immigration Law Group's client (from Email)
  • University of Southern California
    Graduate research assistant

    "I'm really happy about this, thanks for all Chen Immigration's help."

    Mar 10, 2016, F. K. was WeGreened (Chen Immigration) - North America Immigration Law Group's client (from Email)
  • PhD Organic Chemist

    I am so happy that I received the I-140 (Eb2-NIW) approval today! I have to thank Attorney Chen and her team's (North America Immigration Law group) efforts along the process. They are not only detail-orientated but also response questions promptly. Their quality services eliminated many anxiety and worries. I will definitely recommend NAmILG to be your reliable partner during the green card journey. Thank you!

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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Success Stories: NIW Petition Approved in Under 2 Months for Postdoctoral Fellow from Iran in the Field of Petroleum Engineering

Thanks a lot for your invaluable helps regarding my case and trying to take care of it in best way. [...] Chen Immigration Group work was impressive and unparallel. I know some other friends mainly in engineering that are working to improve and perfect their resume greatly. I will definitely introduce your attorney team to them in near future to get help with their immigration. Many thanks to Victoria and others who worked on preparing and filing my case.

Approved in 57 days

State of Residence: Texas

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Success Stories: South Korean Research Analyst in Canada with Approved NIW Petition is Now Eligible for Immigrant Visa Processing

Thank you and your team for all the hard work. I really appreciate all your communication with me, and helping me get through this process. I will definitely let my colleagues who are interested in applying know (as I've already done before).

Approved in 251 days

State of Residence: N/A

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Success Stories: Massachusetts-based Postdoctoral Associate in the Field of Electrical Engineering with Approved NIW Petition Obtains Green Card Success

Thank you for your effort on my I140 approval. I have already referred you to most of my friends.

Approved in 137 days

State of Residence: Massachusetts

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Success Stories: Premium Processing Allows Postdoctoral Researcher in Texas in the Field of Molecular Biology to Receive EB-1A Petition Approval in 10 Days

Thank you very much!

Approved in 10 days

State of Residence: Texas

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Success Stories: Premium Processing Allows EB-1A Petition to be Approved in 9 Days for Indian Postdoctoral Fellow in the Field of Molecular Biology

Many, many, thanks for your effort and guidance, it's like a dream came true.

Approved in 9 days

State of Residence: South Carolina

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Success Stories: Employer-Petitioned EB-1B Approved for Technical Lead in California in the Field of Computer Science

Thank you so much for the super efficient and professional legal service you provided in the past a few months! I deeply appreciate all the help...

Approved in 21 days

State of Residence: California

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Success Stories: NIW Petition Approved for Postdoctoral Research Associate in North Carolina in the Field of Computational Chemistry

Thank you so much. Your team did a wonderful work and I really appreciate your timely work.

Approved in 251 days

State of Residence: North Carolina

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Success Stories: Postdoctoral Associate in Connecticut in the Field of Protein Chemistry Receives NIW Petition Approval from Texas Service Center

Thank you very much for these incredible news!!! I cannot even describe how happy I am!!! My experience working with you was amazing. I will keep recommending Chen Immigration Team to my friends and colleagues! You are really the best!

Approved in 174 days

State of Residence: Connecticut

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