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北美联合律师事务所(North America Immigration Law Group; Chen Immigration Law Associates)是一家从事美国移民的律师事务所,致力于代表来自美国50个州的公司、研究机构和个人,针对I-140移民申请提供法律服务。 我们专精于职业移民申请,并在下列移民类别保有高成功率的证明记录: EB2-NIW(国家利益豁免)EB1-A(杰出人才)EB1-B(杰出教授/研究员)

我们所累积的上万件I-140批准通知让我们对美国移民局的裁决趋势有着前所未有的洞察力
拥有上万笔的EB-1A,EB-1B和EB-2 NIW批准纪录,我们对USCIS判决I-140案件的方式有着丰富的第一手资料。 由于USCIS会不断改变对EB-1A,EB-1B和EB-2 NIW类别的裁决标准,我们事务所累积的庞大成功案例数据库能提供您前所未有且透彻的USCIS裁决趋势。 我们仔细分析我们所有案例的数据,将分析结果应用于为客户提供最新的建议,并随时调整我们的策略,使我们与美国不断变化的移民法规局势保持一致。 与我们合作,您可以随时得知重要的更新、策略和信息,让您可以对您的申请做出最明智的决定。

我们已经成功帮助过上万位背景和条件与您相似的客户
我们经手过众多的成功案例。无论您的条件、背景、专业领域、签证身份或国籍为何,我们极有可能已经帮助过数百名甚至数千名和您相似的客户。 我们的客户通常对我们能如此了解他们的研究和工作感到印象深刻。 我们的洞察力和理解来自于我们已经处理过许多与您条件类似的案例,这使我们有能力为每份申请量身订制最佳策略。

许多客户都是因为他人的推荐而与我们接洽
多年来,我们事务所吸引了许多新客户与我们合作,他们全都是基于我们的口碑、他人的推荐以及朋友和家人所分享的愉快合作经验而选择我们。 我们以我们的声誉自豪,也努力确保我们提供令人满意的绿卡申请服务给每位客户,让客户乐于与他们的朋友和同事分享经验。 这就是为何截至2025年,我们累积的批准案件总数已从2013年的600件成长至接近64,000件。

北美联合律师事务所 2020 年至 2024 年EB1 / NIW 案件批准数据

顾客见证

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

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

I highly appreciate the outstanding work and help provided by North America Immigration Law group to me during my I-140 petition. They have very good understanding of the case and even easily understood my research and full profile to make the petition. There response before committed time is really appreciable. I found that the case taken by them is a big assurance that it is going to be approved. My EB1A- I-140 got approved very quickly even the day after the premium processing application was received without any RFE or difficulty.
I highly recommend Chen Immigration Team for green card petitions. Thanks a lot for their big help.

- S. S., Group Scientist

Many thanks to NAmILG/Chen Immigration for the quality and efficiency of their services. They have always replied very fast to any of my requests or questions. They have provided me with very clear answers and guidelines to navigate the I-140 application process. Their preparation of the file and their drafting of letters were thoroughly thought out and meticulous. I consider they have played a key role in the success of my I-140 application.
I would highly recommend Chen Immigration for their professionalism, honesty, and straightforwardness.

- P. A. M., Postdoctoral fellow

Thank you to the North American Immigration Law Group/Chen Immigration and Attorneys for their unwavering support and help in helping my secure my I-140 approval under EB1A and also under NIW. Their service was professional and timely. They answered my million and one questions with patience and worked with me on every stage of the process. They helped draft the letters and were open to edits and comments from me. What I also liked was that they were open to receiving suggestions from me to help strengthen my case especially when we were responding to our RFE.
Thank you to this team for working diligently and patiently with me to help build my case and get the EB1A petition approved.
I highly recommend them.

- S. V., Assistant Professor

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

READ MORE

Success Stories: A Chinese Power Systems Research Engineer Secures EB2-NIW Approval in Just Over One Month via the Premium Processing

“Thank you very much for your help! Really excited that my case got approved without RFE. Thank you so much!”

Approved in 37 days

State of Residence: Washington

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Success Stories: Driving Innovation in Computer Vision: EB2-NIW Approved for Autonomous Systems Researcher

“The service is perfect for me so far, and thank you for your help all the way. It’s really a great experience working with you.”

Approved in 503 days

State of Residence: New York

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Success Stories: Resilience Rewarded: NAILG Secured EB1A Approval in Just 19 Days for Critical Care Expert After Prior Denial

“North America Immigration Law Group attorneys and team were very proficient and supportive throughout the process. They always carefully evaluated the materials that I provided and drafted a very strong petition letter.”

Approved in 19 days

State of Residence: Massachusetts

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Success Story: Fast-Track NIW Success! Indian Research Associate Scientist Approved with Our Expert Support and Premium Processing Service

“Thank you very much for all your help through the NIW process. An approval without an RFE seems to be a rarity these days, and I was happy to receive the decision well before the 45-day deadlines. This talks to the strength and clarity in the petition. I am so excited to receive the approval and really appreciate your expert advice and assistance with the filing.”

Approved in 44 days

State of Residence: Pennsylvania

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Success Stories: RFE Overcome, Petition Approved: NAILG Guided Principal Architect in Computer Science to EB-1A Approval

“I want to express my heartfelt gratitude for all the guidance and support during my EB1A I-140 petition process, notably for the thorough assistance in responding to the RFE. I sincerely appreciate the care and diligence. Thank you very much!”

Approved in 123 days

State of Residence: California

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Success Stories: Redefining Cardiac Care: EB1A Approved for Clinician-Scientist Advancing Heart Failure and Transplant Outcomes

“Would like to take this opportunity to thank you and your team for the approval. Your team was very professional from the beginning and made this process so easy. I appreciate the thoroughness and the constant feedback while building the application. I would strongly recommend your services to any of my colleagues without any hesitation.”

Approved in 17 days

State of Residence: Washington

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Success Story: Thanks to Our Assistance, An Iranian Researcher Wins NIW & EB1A – EB1A Approved in Just 15 Days!

“Thank you so much for all your work and support.”

Approved in 15 days

State of Residence: Mississippi

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Success Stories: Successful EB2-NIW Approval for a Vietnamese Research Scientist/Manager in Biochemical Engineering

“Thank you so much for the congratulations and for all the support throughout the process! I truly appreciate your professionalism and guidance.”

Approved in 523 days

State of Residence: South Korea

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Success Stories: Advancing Human-Centered Technologies: Postdoctoral Fellow Secures EB1A and NIW Approvals Despite RFE

“Thank you so much for your tremendous help in my petitions for NIW and EB1A.”

Approved in 16 days

State of Residence: Georgia

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Success Stories: Research at the Crossroads of Innovation and Impact: A National Interest Waiver Win in Chemical Engineering

“I have a great experience in preparing my I-140 petition and corresponding reference letters. Additionally, I always received the answers to my questions within 24 hours. All the members are very professional in responding to any of my queries.”

Approved in 519 days

State of Residence: New York

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Success Stories: NAILG Guides Chinese Data Scientist in Technology Law to EB1A Success Despite RFE Challenge

“WeGreened is definitely the best attorneys in this industry. They are professional, patient, and incredibly knowledgeable. I’m thrilled with the outcome and very thankful for their help. I wouldn’t have been able to do this without them.”

Approved in 105 days

State of Residence: Washington

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Success Story: Nigerian Expert Receives Both EB1A and NIW Approvals with Our Proven Strategy via Premium Processing Services Even After RFE for EB1A

“Thank you for your assistance and guidance throughout the process of my I-140 application.”

Approved in 120 days

State of Residence: United Kingdom

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Success Stories: Transforming Access: Higher Education PhD Student Secured NIW with NAILG’s Guidance

“Thank you again for your excellent support throughout my I-140 petition process. I’m truly grateful for your expertise and professionalism, which contributed greatly to the success of my case.”

Approved in 491 days

State of Residence: Illinois

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Success Stories: Bangladeshi Materials Scientist Earns EB2-NIW Approval in Just Two Months with Premium Processing

“Thank you so much! You made my day!”

Approved in 60 days

State of Residence: Bangladesh

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Success Story: No RFE Issues, NIW Approved for Iranian Postdoctoral Fellow Thanks to Our Assistance

“Thank you for your support and thank you for helping me have a successful case.”

Approved in 800 days

State of Residence: United Kingdom

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