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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

Many thanks to Chen immigration & Attorneys for their great help, and I had a very good experience working with this professional attorney team, they prepared high quality recommendation letters and petition letters, provide guide in detail and response questions in time, I am lucky to have such a team to help me get the approval. I strongly recommended them to all who are seeking green card.

- Y. H., Postdoctoral Research Associate

I am Associate Professor in Mechanical Engineering. I would like to extend my deepest gratitude to Chen immigration group for their great help on my NIW-I-140 case preparation and filing. Undoubtedly without your help, it was not possible to get my application approved. Thank you for such an amazing support. Their professional guidance, patience, and prompt responses make the whole process efficient and successful. I highly recommend Chen immigration group!

- A. A. D. S., Associate professor at Engineering

I'm very happy with all the work and advice Chen Immigration Team have put into my NIW application. The responses were always timely, the letters drafted were polite, well-structured and timely. When I got my RFE, I was worried, but with the help of the attorneys working with me, the answer to the RFE lead to approval.
Not only do the members of the team work extremely hard and with highest professionalism, they also show that they believe in their clients, are able to emphasize all the achievements better than I ever could, and they genuinely care.
Thank you so very much!
I cannot be happier with everything you've done for me!

- M, Postpoc

One word to define Chen immigration: 'Professional'

First of all, I want to thank the immigration team for their timely and excellent services. They were absolute joy to work with and the team was thorough, experienced and well placed to provide me excellent reviews, advice throughout my EB2-NIW application process. I have already recommended a few of my friends who already echo my sentiments and will continue to refer Chen Immigration services to anyone who seek my advice.

- D. T.

Words can not describe my level of satisfaction working with folks at WeGreened. They have a rigid systematic approach to submit cases to USCIS (i.e. EB2-NIW in my case).
No hitting around the bush during working with you. Straight forward and logical folks. They throw it into your face when you are wrong, accept it with big heart if they fail. Turn-back time to your questions is within 24 business hours with no doubt at every single step of the progress. Do not doubt for even a single second to choosing them, regardless of your geographical point.

- T. J., Affiliate Faculty

The best thing to happen to me in my GC process was my friend's recommendation of NAILG. They have been impeccable when it comes to keeping their promised time. They have also been giving me appropriate advice at appropriate times and have prepared a 1i140 packet that I could not have done myself in 100 years. I can't thank them enough.

- K. K., Research Scientist

READ MORE

Success Story: EB1A Approved for Nanotechnology Engineer Advancing Energy and Sensor Applications

“Thank you for all the help.”

Approved in 29 days

State of Residence: Canada

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Success Stories: Rapid NIW Approval for Translational Epidemiology Specialist Shaping U.S. Chronic Disease Treatment Strategies

“Thank you so much for this excellent news! And thank you so much for all your help throughout this process.”

Approved in 20 days

State of Residence: Massachusetts

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Success Stories: A Strategic Race Against Time- Securing Approval Under EB-2 NIW for a CSPA-Impacted Family

“Thanks again for your outstanding support throughout this process.”

Approved in 392 days

State of Residence: Libya

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Success Story: NIW Win for Turkish Postdoctoral Associate – Approved with the Help of Our Expert Support and Premium Processing Service

“As a researcher in the field of semiconductor technologies, I was looking for a reliable and experienced legal team to handle my EB2-NIW petition. Working with Chen Immigration Group exceeded my expectations. They carefully reviewed my scientific background and built a compelling petition that effectively communicated the national importance of my work. Their system is very organized, and their attorneys are extremely knowledgeable. My petition was approved swiftly, and I sincerely thank them for their excellent service.”

Approved in 58 days

State of Residence: Connecticut

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Success Stories: NAILG Collaborated with PhD Candidate Specializing in Mechanical Engineering to Secure NIW Approval

“I had an excellent experience working with NAILG on my EB2-NIW petition. Their professionalism and responsiveness were outstanding, addressing all my questions about the process promptly and thoroughly. I highly recommend their services!”

Approved in 319 days

State of Residence: Arkansas

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Success Story: We Helped a Ph.D. Student and Researcher Achieve Dual Success With EB1A and NIW Approvals – EB1A Approved via Premium Processing in Just 13 Days

“It’s been a great pleasure working with you, and I appreciate your support and assistance throughout what is otherwise a sensitive, stressful and complicated process that is immigration.”

Approved in 13 days

State of Residence: Georgia

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Success Stories: Driving the Future of Clean Energy: EB2-NIW Approved for Solar Materials Scientist Advancing Perovskite Technologies

“I want to express my sincere gratitude to the entire team for their exceptional work throughout my petition process. From the beginning, the professionalism, expertise, and dedication displayed by everyone involved were outstanding. The attention to detail in preparing and documenting my case was remarkable, and I was consistently impressed by how seamlessly every step was handled. The clarity and efficiency with which the process was navigated made a challenging experience much easier, and I am deeply appreciative of the hard work and commitment shown. Communication was another standout feature of my experience. The timely responses and thorough guidance I received instilled confidence and support every step of the way. I extend my best wishes for continued success and prosperity for the firm. It has truly been a pleasure working with such an invaluable team, and I look forward to future opportunities to collaborate. Thank you once again for your exceptional support.”

Approved in 136 days

State of Residence: Vermont

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Success Stories: Scaling Robotic Intelligence: EB2-NIW Approved for AI Researcher Revolutionizing Robot Learning Systems

“Thank you for your effort.”

Approved in 18 days

State of Residence: California

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Success Story: Approved Without RFE! Graduate Research Assistant Achieves Seamless NIW Success, Thanks to Our Assistance

“I really appreciate the professionalism, prompt responses to my inquiries, the courtesy, and detailed guidance provided by my Attorney and the staff of the Chen Immigration team to me during my I-140 petition preparation process. The reference letters and the petition letter provided to me were incredibly detailed and strengthened my case. I appreciate the patience displayed throughout the process. I would highly recommend the North America Immigration Law Group to anyone with immigration issues. Thanks for all you do.”

Approved in 476 days

State of Residence: Nebraska

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EB1A Approved for Cancer Biology Researcher Advancing Genome Stability and DNA Damage Response Research

“It was a great pleasure working with your team: the responses were professional and prompt.”

Approved in 21 days

State of Residence: California

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Success Stories: EB-1A Petition Approved for Highly Cited Expert in Health Economics and Pharmacoeconomics

“Thank you so much for sending the approval notice for my EB1A case. It has been a pleasure working with you throughout this process, and I truly appreciate your support.”

Approved in 227 days

State of Residence: Ohio

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Success Stories: Innovator in Computer Vision Secured NIW Approval for Nationally Important Research

“I am glad it got approved at the earliest without RFEs, thank you very much for your great efforts behind this :)”

Approved in 47 days

State of Residence: Arkansas

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Success Stories: Decoding Memory and Decision-Making: NIW Approved in 23 Days with NAILG’s Support

“Thank you so much for your help! This is wonderful news.”

Approved in 23 days

State of Residence: New York

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Success Story: A Research Assistant in the Field of Computer Science Won NIW Approval with Our Expert Filing and Strategy

Approved in 295 days

State of Residence: Alabama

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Success Stories: A Postdoctoral Associate in the field of Biomedical Science from Bangladesh Earns EB2-NIW Approval

“I am incredibly grateful for the vigorous support and expertise of my immigration attorney throughout the successful approval of my I-140 petition. Their responses were consistently prompt, and their case writing was exceptional—thorough, well-organized, and enriched with relevant scientific citations that added strong weight to my petition.
 
I was particularly impressed by how carefully they analyzed and enhanced my research profile, crafting compelling statements around my journal articles and clearly articulating their scientific and societal impact. Their orientation toward scientific writing and attention to detail in presenting my work were instrumental to the strength of the petition.
 
I am fully satisfied with their service and would highly recommend them to any researcher seeking expert guidance in the immigration process.”

Approved in 309 days

State of Residence: Massachusetts

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