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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 had worked with Chen Immigration group for my O-1A visa first and then retained with them for my I-140 petition under EB1A category. Their services are rapid and prompt with an affordable fee structure. They also have very high success rate of approvals. They have taken utmost care on all the required documentation. They usually respond to my questions in 1 business day. I highly recommend Chen Immigration group for my fellow colleagues for their petitions under various categories.

- R. V., Chief Technology Officer

Thank You Chen Immigration and Attorneys for your tremendous effort on helping me approve my NIW EB-2 petition. They are very professional from start to end. All the questions asked were answered in a professional manner in timely basis. I really appreciate all your work and suggestion during the process. If anyone of you plan to file your NIWS, Chen Immigration and Attorneys are probably the best options out there.

- M. K., Geophysicist

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

When i looked at all the reviews for the immigration firm, Chen immigration caught my attention for two reason, effective clear communication and their experience to approve otherwise difficult cases. After the initial free evaluation by their experienced attorneys they presented me with step by step instructions and options. I took a week to understand and signed the contract with them. My only concern at that time was not seeing the firm in person as everything is online, However that concern was gone as i saw their work ethics. They are super professional and respect the timelines and deadlines. they meticulously prepare all the documents, which is really important for such cases. I had a wonderful experience with them. I had already recommended two of my friends to hire them. I hired them for both I-140 and I-485. My I-140 was filed with PP and I received the approval in 8 days.

- L. S., Postdoctoral Fellow

It was an incredible experience working with Chen lawyers. I got my EB1A approved in 10 days. They were so perfect in their work and and took care of every little detail necessary. Very dependable and very friendly to work with. They were very prompt in answering every of my questions; and trust me they have been very kind to have responded to silliest of my doubts and concerns. I strongly recommend them to all my friends. Needless to mention, I am going to work with them for I-485 as well.

- T. K., Research Scientist

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.

- V. J., Senior Engineer

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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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