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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 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

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

Chen Immigration is by far the most professional and meticulous group I have come across. The entire process, right from the evaluation by Victoria Chen, to the final submission to USCIS is systematic and diligently planned. Each and every question is answered and at no point does one feel helpless. The letters are expertly drafted. Kudos to the team and Ms. Chen.

- S. P., Scientist

It was a long and tough journey to prepare the EB-1A I-140. However, with the professional assistance and prompt feedback from the NAIL firm, this process has become much easier. They always stick to the deadlines that have been promised (preparing reference letter in 10 days, petition letter in 10 days). Thank you Chen associates for your enormous help, which helped me get my case approved one day after USCIS received my Form I-140. I will absolutely recommend you to every of my friends who will be applying for the green card in the future.

- J. L., Postdoctoral Fellow

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

My EB1B I-140 got approved within 10 business days. I have worked with Chen Immigration Team from North America Immigration Law Group for 4 months before submitting my application. They were extremely thorough, meticulous and prompt with their service. They drafted all the necessary letters (employment verification, recommendation letters and petition letter) within the agreed timeline. They helped me to choose potential recommenders and were always quick to answer any of my questions. They are very professional and definitely know what they are doing. I will definitely recommend Chen Immigration Team to anyone who is planning to apply for Permanent Residency Status in USA.

- B., Scientist

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Success Story: NIW Victory! Indian Postdoctoral Associate Approved with Our Help

“It was great working with you as well! Thank you so much for your hard work and support throughout the process. I’ve already left a 5-star review mentioning my NIW petition and have recommended your firm to a couple of friends—I will continue doing so.”

Approved in 313 days

State of Residence: New Mexico

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Success Story: NAILG Helped An India AI Research Scientist Receive EB1A and NIW Approvals

“Thank you for helping me prepare my I-140 application and for thoroughly ensuring the correctness of the evidence packet.”

Approved in 396 days

State of Residence: Washington

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Success Stories: EB-1A Granted to Post-Doctoral Research Fellow in the Field of Neurology Thanks to NAILG’s Tailored Petition Strategy

“Thank you so much for your kind message — it has truly been a pleasure working with your firm. I am incredibly grateful for your professional guidance and support throughout my EB1A case.”

Approved in 122 days

State of Residence: Maryland

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Success Stories: Cancer Metabolism Instructor Granted EB-1A Status with Strategic Support from NAILG

“Highly professional and helpful. I really appreciate the help and support with filing my I-140 petition.”

Approved in 438 days

State of Residence: Texas

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Success Stories: Fast-Tracked EB2-NIW Approval for an Indian Data Science expert via the Premium Processing

“Chen Immigration Law Firm truly stands out as the No. 1 in the field. From start to finish, their process was incredibly smooth and efficient. The team works ultra-fast, yet never compromises on attention to detail—they know exactly what USCIS wants to see in your petition, which gave me peace of mind throughout the entire process.
 
Beyond their technical expertise, the team is also highly responsive and supportive. They answered all my questions promptly and provided clear guidance every step of the way. I would highly recommend Chen Immigration Law Firm to anyone looking for top-notch service.”

Approved in 46 days

State of Residence: Texas

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Success Story: NIW Petition Approved for PhD Student from China with Our Help from Expert Teams

“Wegreen is highly efficient and responsive.”

Approved in 239 days

State of Residence: Washington

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Success Stories: Swift I-140 NIW Approval for a Biomedical Informatics PhD Student from China in Just 1 Month and 18 Days, Thanks to the Premium Processing

“I’m deeply grateful to WeGreened for their exceptional work on my NIW petition. Their expertise, responsiveness, and attention to detail made the entire process smooth and stress-free. Thanks to their guidance, my case was approved quickly. I highly recommend them to anyone pursuing a similar path.”

Approved in 48 days

State of Residence: Connecticut

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Success Story: NIW Approved for MRI Researcher Enhancing Imaging Speed, Resolution, and Safety

“Working with Chen Immigration was a smooth and professional experience. Their team clearly understood the value of my research and presented it effectively in the petition.
 
They were organized, responsive, and skilled at translating technical work into a strong case for national benefit. Thanks to their guidance, my NIW petition was approved under standard processing. I highly recommend NAILG to any researcher pursuing this path.”

Approved in 480 days

State of Residence: California

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Success Story: NAILG Secure Fast-Track NIW Approval for an Indian Staff Research Scientist with Direct Premium Processing

“That is great news! Thank you for sharing this update and thank you again for all your work. I appreciate the competence of the staff and their promptness in answering all of my questions.”

Approved in 37 days

State of Residence: New York

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Success Story: NIW Approved! Iranian Full Professor in E-Commerce Field Achieves Success with Our Support

“Thank you so much for this fantastic news and all of your team’s hard work for my case.”

Approved in 289 days

State of Residence: Iran

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Success Stories: NAILG Secured EB-1A Approval for an Assistant Professor in the Field of Medical and Public Policy After Prior NIW Success

“Thanks for your services.”

Approved in 15 days

State of Residence: Washington

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Success Stories: From Algorithms to Acclaim — Computer Vision Scientist Secures O-1A Visa Approval

“Thank you for your excellent support on both my EB2-NIW and O1A petitions. I am very happy with your service and would be glad to leave a 5-star review. Thanks again for everything!”

Approved in 12 days

State of Residence: France

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Success Stories: Premium Processing Accelerates EB2-NIW Approval for a Biotechnology Postdoctoral Associate from India

“I would like to express my deepest gratitude to the entire team at North America Immigration Law Group (NAILG) for their outstanding support and expert guidance throughout my EB2-NIW petition process. NAILG far exceeded my expectations in every regard.
 
From our first interaction, the team was highly organized, communicative, and deeply knowledgeable. They took the time to carefully assess my academic and research profile and provided a realistic and transparent evaluation of my case. 
 
What I especially appreciated was how effectively NAILG translated complex scientific findings into accessible, persuasive language suitable for USCIS officers. Their legal writing was sharp, evidence-based, and strategic. The process from document collection to final petition submission was smooth, well-structured, and always on schedule.
 
I wholeheartedly recommend NAILG to any researcher or professional navigating the EB2-NIW process. Their team combines legal precision with a genuine commitment to their clients’ success. Choosing them was one of the best decisions I made in my immigration journey, and I am sincerely thankful for their support.”

Approved in 30 days

State of Residence: Massachusetts

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Success Stories: Internal Medicine Assistant Professor Earned NIW for Precision-Focused Research with Help from NAILG

“I am currently working with Chen Immigration on my I-140 EB2-NIW petition, and I have been very impressed with their professionalism and expertise so far. My attorney has been incredibly thorough, responsive, and thoughtful throughout the entire process. They helped me carefully prepare my petition and provided detailed guidance at every step, making a complex process feel much more manageable. I highly recommend Chen Immigration to anyone looking for a dedicated and knowledgeable team to assist with their immigration journey.”

Approved in 31 days

State of Residence: Arkansas

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Success Stories: From Swift NIW to EB-1A: NAILG Guided Research Assistant Professor in Electrical Engineering to Dual Approvals

“Thank you for the extraordinary services which led to the successful approval of my EB1A petition. I am truly grateful.”

Approved in 439 days

State of Residence: Texas

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