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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件成长至超过61,000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

I had a great experience working with Chen Immigration Law Group. I applied for EB1A premium processing and the case was approved within 2 weeks without any RFE.
I was impressed with the quality of petition letter and the reference letters drafted by their team. Although my field is highly technical, the attorneys seemed highly knowledgeable and were able to present my research in a manner which was easy to understand, impressive and yet not 'over-selling'.
They went over my research/citations meticulously and were able to catch mistakes which honestly I would have missed if I was preparing my own case. They were also very prompt with replying to any questions I had during the process.
In short, I would strongly recommend them to all who want to get through the green card process without stress.

- P. J., Postdoctoral Researcher

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

The Chen Immigration Law group was recommended to me by a fellow postdoc at a networking event. He claimed that if they say that my credentials are good enough to file a case for a green card then it is almost certain success. He was absolutely right.
After evaluating my credentials we decided to apply under the EB2-NIW category. Overall, it was a pleasure working with them. All my questions were answered promptly and to the point. Although the communication was only through emails, it was very effective. They made very clear to me what documents are necessary and how to obtain them and they drafted amazing reference letters and the I-140 petition letter. The price was very reasonable (the best I could find) and they always keep their timeline.
I am really grateful for their service and I highly recommend them. Thank you so much!

- P. F., Post-doctoral Scientist

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

I'm so excited that my I-140 got approved within such a short time! I do think the North America Immigration Law Group did a great job. They are so patient to answer lots of my questions. The recommendation letters and petition letter are well prepared. That saved lots of my time! I will definitely recommend to my friends, as well as other people who prepare to apply for green card!

- X. L., Postdoctoral Fellow

I am glad to know that my EB1 I-140 is approved. You made my dream come true. I am very thankful to North America Immigration Law Group. In addition to one's extraordinary credential, it is very important to have very good attorney for this success. Chen immigration attorneys are very brilliant and professional. They are very prompt in replying every query.
My several friends recommended Chen immigration and indeed they are great. I worked with Ms. Chen and Mr. Ingebritson. They have explained and simplified all process. Their wining strategy of selecting most useful credentials and presentation helped me in success of my case. I am completely satisfied with their service and highly recommending to everyone who is interested in employment-based green card application.
Thank you very much for all your help and advice during entire process of my application.

- P. N., Postdoctoral Fellow

READ MORE

Success Story: Empowering Social Impact through Data Science: Chinese Researcher Secures NIW Approval

“I greatly appreciate the Chen Immigration Law Associates for your support with my NIW application! You are an excellent team. Many thanks for your hard work, prompt and clear response, and professional expertise! Special thanks to Belinda Bu for her great help and expertise!”

Approved in 63 days

State of Residence: Colorado

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Success Stories: Mapping Global Disease to Shape Local Solutions: A Vietnamese Researcher’s Ascent to Extraordinary Ability

“I am truly grateful for the thorough and professional support provided by the entire Chen Immigration team. You addressed all of my questions promptly and in detail, guiding me through each step and helping me prepare the strongest possible case. You demonstrated a clear understanding of the intricacies of my work and skillfully crafted a compelling case on my behalf.”

Approved in 9 days

State of Residence: Indiana

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Success Story: We Helped a Postdoctoral Scholar from China Achieve NIW Approval Without RFE

“I am glad to hear this good news. Thank you for your guidance and kind support.”

Approved in 472 days

State of Residence: California

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Success Stories: NAILG Expert Strategy Secured 21-Day NIW Approval for Computer Science Research Scientist

“Thanks for all the help in putting this petition together. Your team responded in a very timely manner and was very professional.”

Approved in 21 days

State of Residence: Iowa

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Success Stories: Associate Professor in Neuroscience Achieved EB-1A Approval with NAILG’s Expert Legal Support

“I will definitely refer you to my friends.”

Approved in 609 days

State of Residence: -

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Success Stories: Surgical Pathology Fellow Investigating Molecular Cancer Mechanisms Secured NIW in Just Over a Week With NAILG

“I got in touch with North America Immigration Law Group through a referral by a friend who also had a great experience. It was a wonderful experience working with them on my application. They always reply within 24 hours. They provided a high level of guidance as well as attention to detail. They suggested some extra documents based on recent trends. I am so happy for the case approval and want to thank them so much for guiding me through this path. Highly recommend them.”

Approved in 9 days

State of Residence: Florida

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Success Story: NIW Approved Without RFE: We Helped an Iranian Human Genetics Expert Achieve Success

“I am very thankful to the team for their help with my EB-2 NIW application. They worked hard and gave me clear advice, which made the process easier. Their support was important in getting my application approved without any problems. I am happy with their service and recommend them to anyone needing help with U.S. immigration.”

Approved in 347 days

State of Residence: Switzerland

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Success Stories: Strategic Petition Yielded 16-Day NIW Approval for Applied Researcher in Machine Learning

“Thank you so much for your support during my NIW petition! I’m truly grateful for your expertise, responsiveness, and guidance every step of the way.”

Approved in 16 days

State of Residence: California

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Success Stories: NAILG Guides PhD Candidate in Electrical Engineering to NIW Approval in 2 Months – No RFE, No Delays

“Thank you so much for your hard work! It was really a great experience.”

Approved in 60 days

State of Residence: North Carolina

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Success Story: NAILG Helped a Chinese Expert Earn NIW Approval via Premium Processing

“WeGreened’s streamlined process and responsive team made my NIW application smooth and stress-free. Their clear guidance saved me time and helped me present my achievements effectively. Highly recommended.”

Approved in 57 days

State of Residence: -

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Success Stories: Building Tomorrow’s Technologies: A Dual Win in Mechanical Engineering

“NAILG made my immigration journey much smoother than I expected. They really understood my research and knew exactly how to present it to USCIS. What stood out was how they turned my technical work into a compelling story that highlighted its importance to the U.S. The team was professional, responsive, and clearly experienced in handling cases like mine. Getting both NIW and EB1A approved speaks to their expertise. I’d definitely recommend them to fellow researchers looking for reliable immigration help!”

Approved in 457 days

State of Residence: California

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Success Stories: Statistical Physics PhD Candidate Earned NIW Approval for Advancing Understanding of Intelligent Systems

“My attorney was both professional and dependable. Thanks to his support, my case was successfully prepared within just a month and a half.”

Approved in 57 days

State of Residence: California

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Success Stories: EB-1A Approval Secured for Nuclear Physics Expert, NAILG’s Strategic Support Key to Success

“I greatly appreciate your help with my approved EB-1A.”

Approved in 397 days

State of Residence: New York

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Success Stories: NAILG Helped Cancer Immunotherapy Researcher Win NIW for High-Impact Research in Tumor Treatment

“I had a great experience working with NAILG on my NIW case. They understood the scientific details of my work and built a strong, well-organized petition. The process was smooth, and their team was always responsive and helpful. I’d definitely recommend them to other researchers.”

Approved in 126 days

State of Residence: Pennsylvania

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Success Stories: With NAILG’s Help, Plant Biology Postdoctoral Fellow Earned NIW for Contributions to U.S. Agriculture

“Thank you very much!”

Approved in 489 days

State of Residence: California

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