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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

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

I will definitely recommend North America Immigration Law Group to all my friends who is seeking for immigration services. I am very, very impressed by their excellent service. The entire process is very professional and they have been responsive and responsible. They will do their best in every little detail to make you case stronger. Their service and attitude towards every case define their high reputation.

- B. H., Postdoctoral Research Fellow

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

It was a privilege to work with Chen immigration attorneys during my NIW I-140 application. They were really professional and kept the deadlines depicted by the client-attorney agreement. They will answer your questions within a day with the maximum clarity. I would definitely recommend them to anyone looking to apply for a NIW green card. Thanks once again and keep up the good work.

- I. S., Research Scientist

Many thanks to NAmILG/Chen Immigration for the quality and efficiency of their services. They have always replied very fast to any of my requests or questions. They have provided me with very clear answers and guidelines to navigate the I-140 application process. Their preparation of the file and their drafting of letters were thoroughly thought out and meticulous. I consider they have played a key role in the success of my I-140 application.
I would highly recommend Chen Immigration for their professionalism, honesty, and straightforwardness.

- P. A. M., 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

READ MORE

Success Stories: O1-A Approval Secured for an Assistant Professor from Canada working in the Field of Rheumatology

“It was great working with you on this O-1A application.”

Approved in 11 days

State of Residence: Texas

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Success Stories: EB2-NIW Approved for a Vietnamese Clinical Translational Researcher in Oncology Following a Successful Request for Evidence (RFE) Response

“Chen Immigration turned a challenging RFE into a successful outcome. Their professionalism and understanding of research-driven petitions exceeded my expectations. I am grateful for their work.”

Approved in 139 days

State of Residence: Vietnam

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Success Stories: Teaching and Research Assistant from China Secures NIW Approval Following RFE

“Thank you very much for your message and for all your support throughout the I-140 NIW petition process. I’m truly grateful for your assistance.”

Approved in 268 days

State of Residence: Texas

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Success Story: Fast-Track NIW Win! A Postdoctoral Fellow from China Achieves Approval via Premium Upgrade

“Letters are professional, and responses are fast and helpful. I am glad that I chose Chen Immigration Attorneys to prepare my I-140 case.”

Approved in 38 days

State of Residence: Alabama

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Success Stories: An Innovative PhD Student with Pioneering Work in Renewable Energy Technologies Secures EB2-NIW Approval

“I’m truly grateful for the outstanding support and guidance I received throughout my EB-2 NIW petition process. The team demonstrated deep knowledge, professionalism, and responsiveness at every stage. They prepared a strong petition that highlighted my background clearly and effectively, and I’m thankful to have had such dedicated experts on my side. I highly recommend their services to anyone pursuing an immigration path based on research or professional merit.”

Approved in 140 days

State of Residence: Canada

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Success Story: No RFE Issued: We Helped a Chinese Full Professor and Director in Advanced Computing Secure NIW Approval

“I am really very grateful for your work. It is a great experience. Thank you very much.”

Approved in 490 days

State of Residence: China

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Success Stories: Strategic Petition by NAILG Led to NIW Approval for Neurodevelopment Researcher Within 2 Months

“Thank you very much for helping with my NIW application. It is a great pleasure to work with your team.”

Approved in 44 days

State of Residence: Massachusetts

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Success Stories: Iranian PhD Student in Materials Science Secures NIW Approval without any RFE

“I am truly grateful for the outstanding support and guidance I received throughout my NIW petition process. The team demonstrated deep expertise in both immigration law and the scientific aspects of my case. They crafted a compelling petition that effectively highlighted the national importance of my research in materials science and biomedical implants. The entire process was smooth and transparent, and I was thrilled to receive approval without any RFE. I highly recommend their services to any researcher pursuing a similar path.”

Approved in 485 days

State of Residence: Canada

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Success Stories: Former Deputy Regional Director Earned NIW for Civil Engineering Contributions with NAILG Assistance

“I sincerely appreciate your attention, understanding, clear explanations, and prompt assistance throughout the preparation of my file. Your support has been invaluable, and I am truly grateful for your professionalism and efficiency. I hope for a positive outcome regarding my file and look forward to hearing the results in due course. Thank you once again for your efforts.”

Approved in 35 days

State of Residence: Texas

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Success Stories: EB2-NIW Approval for a Turkish Post-Doctoral Researcher in Artificial Intelligence, Thanks to NAILG’s Strategic Petition

“This is great news! Thank you for your assistance.”

Approved in 345 days

State of Residence: Florida

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Success Story: Our Expert Team Secured NIW Victory for a Postdoctoral Scholar From China

“Thank you very much for the assistance on my I-140 NIW case – I had a very good experience! I want to mention in particular that the reference letters and petition letter first drafts were of high quality, as both of my references noted. At the later stage, though, when there were multiple messages going on and one got missed and led to some delays, the lawyer was able to address it quickly once I followed up!”

Approved in 183 days

State of Residence: California

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Success Story: Without RFE, A Controls Engineer Achieves NIW Success with Our Expert Guidance

“I am pretty much satisfied by the efficiency, clear guidance, and easy communication with WeGreened.”

Approved in 347 days

State of Residence: Massachusetts

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Success Stories: Enhancing Consumer Experience Through AI: NIW Granted to Machine Learning Engineer

“Thank you so much for all the effort and dedication your team has put into my case. It has been a pleasure working with you, and I truly appreciate your support throughout the process. Thanks again for your excellent service, and I’d be happy to recommend your firm to others.”

Approved in 521 days

State of Residence: California

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Success Stories: EB1A Approved for a Chinese Senior Engineer Advancing Battery Technology with NAILG’s Guidance

“Thanks for sharing with me this great news! I really want to thank your team for helping me prepare all these documents throughout the entire process. You are so professional and experienced, I actually already recommended your firm to my friends/peers applying NIW/EB1A and would definitely continue doing so:)”

Approved in 279 days

State of Residence: California

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Success Stories: NIW Granted for Cardiology Fellow Improving Survival Outcomes in Cancer Patients

“Excellent service.”

Approved in 19 days

State of Residence: Ohio

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