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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58,000件。

北美联合律师事务所 2020 年至 2023 年EB1 / NIW 案件批准数据

顾客见证

I cannot describe how excited I was when I got to know that my I-140 EB1A application has been approved. This simply could not be true if without the professional help from the North America Immigration Law Group. I don't think that my background conditions were safe for this application. But I knew that their preparation strategy made my case pretty strong. Although the application was long and challenging, it was very nice to work with their team during the whole process period. They impressed me with excellence, professionalism, and highly responsiveness. I do believe that their service is the best one in the immigration business.
Thank you so much for your effort to help me get through the EB1A application. I have recommended and will be happy to continue recommending your professional team to other people who really want to be greened.

- K. J., Electrical Engineer at New York State

I'd like to thank Chen Immigration and attorneys for the great job they did on my I-140 application for NIW. They put together a compelling petition letter with appropriate exhibitions which resulted in my I-140 approval only in 72 days at Nebraska Service Center (the average wait time at this center is more than 10 months now). The team at this firm are experts and experienced. They meticulously prepare all the required documents and effectively communicate with the client. They deliver on time & with the highest quality. I have recommended them to my friends who would like to apply for NIW or EB1A. Chen group knows what they are doing and they are the best, go with them!

- H. C., Postdoctoral Scholar

I have to say the team at Chen Immigration Law Associates are very professional and responsive. My I-140 NIW EB-2 was approved recently and I truly appreciate all the patience and efforts that their team did for my case. As a result of this satisfactory experience, I am planning to continue working with Chen Immigration group for my I-485 case. Before applying for NIW, I searched many other lawyers and this firm was the best among them. Good luck everyone!

- A. S., Teaching/Research Assistant

A real pleasure to work with Chen Immigration. I'm very satisfied with the process and, of course, with the result!
It was a persistent, systematic everyday job of their team for several months, tons of e-mails, all replied professionally. No need for a single phone call! No nerves, no hash, no mess, just persistent professional work that resulted in my approval.
Yes they ask for many supporting documents and evidence but the result is a very strong case approved without any RFE. That's extremely important to save time and nerves.

- A. B.

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.

I would like to thank Chen Associates for their great help to get the approval for my I-140 petition. I had very pleasant experince working with them and I am highly satisfied with their work.They are very professional and have many experiences on preparing the documents for the immigrant petition. They know about the strength of your case and I receive the I-140 approval notice (NIW) just after 3 months. I also retained them for the I-485 service. I highly recommend your firm to scientists and research scholars. This is one of the best choices in my life.

- N. F., PhD

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Success Stories: Our Customized EB1A Petition Aided a Chinese Staff Robotics and Controls Engineer in Mechanical Engineering to Secure EB1A Approval in Only 15 Days

“Wow, this is really great news. Thank you so much for the guidance and help throughout this process. I truly appreciate all your efforts.”

Approved in 15 days

State of Residence: California

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Success Stories: Heartfelt Appreciation – Cameroonian Postdoctoral Researcher Expresses Deep Gratitude for Our Meticulous Efforts in Securing NIW Approval Despite Waiting for a Longer Duration of Time

“This is Excellent news !! Thank you SO MUCH for making my day !! I sincerely appreciate your hard work, dedication, and guidance throughout my I-140 NIW petition process. Thank you for all the effort you put into ensuring a smooth and successful outcome. Your support has been invaluable. I will be sure to recommend your firm to others who may benefit from your exceptional service. Thank you again for everything !! I am thrilled that my EB2-NIW petition was approved in less than 10 months without an RFE ! I am incredibly grateful to Chen Immigration Law Group (Wegreened) for their expertise, professionalism, and unwavering support throughout the process. Their clear guidance, attention to detail, and responsiveness made a significant difference in my case. Thanks to their diligent work, my Form I-140 was approved smoothly, and I couldn’t be happier. I highly recommend Chen Immigration Law Group (Wegreened) to anyone seeking expert immigration legal services. Thanks again Chen, for your exceptional service!”

Approved in 297 days

State of Residence: Maryland

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Success Stories: Our Firm Helped a Subspecialty Physician from Europe Secure NIW Approval in Only 2 Months and 20 Days

“Chen and associates are very competent and fast. They respond via their portal to any question in <24h, and their portal is great to upload and organize all the documents. My experience made me understand that it is the background and the endeavor that counts.”

Approved in 80 days

State of Residence: -

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Success Stories: We Helped a Graduate Student Researcher from China in the Field of Pharmaceutical Chemistry Achieve NIW Approval Without Any RFE

“Thanks for sharing this great news with me! It’s been a great experience.”

Approved in 426 days

State of Residence: California

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Success Stories: NAILG Secures NIW Approval for a Chinese Senior Mechanical Engineer I in the Field of Mechanical Engineering Without Any RFE

“The overall experience is good! Thanks for the fantastic work!”

Approved in 84 days

State of Residence: Arizona

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Success Stories: NIW Petition Approved for a Formation Evaluation Reservoir Engineer in the Field of Petroleum Engineering, Thanks to Our Guidance and Premium Processing Service

“I am happy to share my experience with the Chen Immigration Team. I received my EB2-NIW I-140 approval through premium processing. The team is highly experienced and professional, providing prompt and thorough responses to all my questions. I highly recommend their services, and many of my friends and colleagues are currently working with them on their cases.”

Approved in 37 days

State of Residence: Texas

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Success Stories: An Indian Principal Research Engineer Working in the Field of Computer Science Received O1-A as well as EB1A Approvals with the Help of NAILG’s Teamwork

“That is very good news…Thank you for helping me through both the O1A and EB1A visas. I found the process well-organized with timely responses and thorough document checks. It made it easier to manage my time and any related mental stress.”

Approved in 20 days

State of Residence: Maryland

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Success Stories: A Remarkable NIW Approval for a Computer Vision Scientist from China, Secured in Just 2 Months Through Our Dedicated Efforts

“Thanks for all the efforts and I would definitely refer WeGreened to my friends.”

Approved in 60 days

State of Residence: California

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Success Stories: A Senior Machine Learning Scientist Achieves EB1A Case Approval with the Help of Our Team’s Efforts and Guidance

“The Chen Immigration Team was professional and responsive, providing clear guidance throughout the preparation of my case. The drafted materials effectively highlighted the significance of my background, ensuring a strong and well-presented application.”

Approved in 341 days

State of Residence: New York

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Success Stories: In Just 2 Months, a Software Engineer II from India Achieves NIW Approval with Our Customized Petition Packet

Approved in 60 days

State of Residence: Ohio

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Success Stories: A Research Scientist in Food Safety from China Secures NIW Approval in Just 19 Days with Our Dedicated Support and the Premium Processing Service

“Thank you so much for helping me with my NIW case. I’m super excited that it got approved smoothly.”

Approved in 19 days

State of Residence: Georgia

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Success Stories: A Ph.D. Candidate from California Secures NIW Approval in Just 2 Months and 4 Days with Our Expert Assistance, Also Thanks to Premium Processing

“Hi! Thank you so much for your help through this! I have been recommending you to my friends, and I know a bunch of them are currently preparing their case with you. Hopefully in a few years I will have enough citations and I can apply for EB1-A with you.”

Approved in 64 days

State of Residence: California

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Success Stories: NAILG Helped a Faculty Specialist from Nepal to Obtain NIW Approval in the Field of Data Science (with 14 Citations and a Master’s Degree)

“I want to thank the entire team for their exceptional support throughout my EB2 NIW application process. Your guidance on each section of the application was invaluable, and your thorough review of the information I shared helped me catch my errors and ensure accuracy. I truly appreciate how you accepted my feedback and incorporated only the relevant suggestions, demonstrating your expertise and professionalism. Your quick responses during critical periods were crucial and greatly appreciated. Additionally, your proper guidance considering my mixed backgrounds and academic and industrial experiences was instrumental in making this journey smoother and more manageable. Thank you for everything! I am looking forward to the next step of the green card process.”

Approved in 67 days

State of Residence: Washington

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Success Stories: A Remarkable NIW Approval for a Research Engineer II from India, Secured in Just 27 Days Through Our Dedicated Efforts

“I am very satisfied with the professionalism demonstrated throughout the entire process and the clear, straightforward answers to all my questions. I will definitely recommend my friends and colleagues to consider Chen Immigration Attorneys for their green card applications.”

Approved in 27 days

State of Residence: Georgia

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Success Stories: With Our Excellent Case Preparation, NAILG Wins NIW Approval for a Post-doctoral Research Associate in Aerospace Engineering

“Yes, that is awesome. Thank you so much for your help putting the case together. Overall I think that your service is of very high quality.”

Approved in 465 days

State of Residence: Arizona

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