北美聯合律師事務所(North America Immigration Law Group; Chen Immigration Law Associates)是一家從事美國移民的律師事務所,致力於代表來自美國50個州的公司、研究機構和個人,針對I-140移民申請提供法律服務。 我們專精於職業移民申請,並在下列移民類別保有高成功率的證明記錄: EB2-NIW(國家利益豁免)EB1-A(傑出人才)EB1-B(傑出教授/研究員)

我們所累積的上萬件I-140批准通知讓我們對美國移民局的裁決趨勢有著前所未有的洞察力
擁有上萬筆的EB-1A,EB-1B和EB-2 NIW批准紀錄,我們對USCIS判決I-140案件的方式有著豐富的第一手資料。 由於USCIS會不斷改變對EB-1A,EB-1B和EB-2 NIW類別的裁決標準,我們事務所累積的龐大成功案例數據庫能提供您前所未有且透徹的USCIS裁決趨勢。 我們仔細分析我們所有案例的數據,將分析結果應用於為客戶提供最新的建議,並隨時調整我們的策略,使我們與美國不斷變化的移民法規局勢保持一致。 與我們合作,您可以隨時得知重要的更新、策略和資訊,讓您可以對您的申請做出最明智的決定。

我們已經成功幫助過上萬位背景和條件與您相似的客戶
我們經手過眾多的成功案例。無論您的條件、背景、專業領域、簽證身份或國籍為何,我們極有可能已經幫助過數百名甚至數千名和您相似的客戶。 我們的客戶通常對我們能如此了解他們的研究和工作感到印象深刻。 我們的洞察力和理解來自於我們已經處理過許多與您條件類似的案例,這使我們有能力為每份申請量身訂製最佳策略。

許多客戶都是因為他人的推薦而與我們接洽
多年來,我們事務所吸引了許多新客戶與我們合作,他們全都是基於我們的口碑、他人的推薦以及朋友和家人所分享的愉快合作經驗而選擇我們。 我們以我們的聲譽自豪,也努力確保我們提供令人滿意的綠卡申請服務給每位客戶,讓客戶樂於與他們的朋友和同事分享經驗。 這就是為何截至2025年,我們累積的批准案件總數已從2013年的600件成長至64,000+件。

北美聯合律師事務所 EB1 / NIW 案件批准數據

(2012.01 - 2025.12)
Approval or Refund®
CategoryApproval or RefilingTM
Approved SumSuccess RateApproved SumSuccess Rate
NIW42,04799%5,25897%
EB1A9,21891%4,53486%
EB1B1,48898%44893%
Total52,75398%10,24092%
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顧客見證

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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
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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
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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
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It is with great pleasure that I here come to express my highest gratitude and respect for North America Immigration Law Group. Victoria Chen and her incredible competent and professional Team of Attorneys are highly recommended by me. They diligently worked on my application and provided me with the best word of advice and expertise regarding my I-140 case. My process was approved within the standard and current processing time of four months. I am now, undoubtedly working with them again to apply for the I-485. I would recommend one and only Law Immigration Group, and that is Chen Immigration & Attorneys. This Team is stupendous.
- L. O., Senior Applications Engineer
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I would like to thank the Chen Immigration team for getting my I-140 (EB-1B) approved with no RFE. I choose premium processing and the case was approved in 13 days. The team is very professional and helpful in every step on your way to the approval. I had many questions from time to time during the preparation process and they were answered in a timely manner. I have also retained them for I-485 and hope that it will also be approved in a timely manner.
- A. K.
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It was fantastic to work with Chen Immigration Law Group. I got my I140 approval just in 4 months.Chen Immigration Law Group is a very professional company.They answered all my questions with timely manner and prepared my I140 package really good that I received my approval way before than I expected. I also really like their online service which makes everything easy to understand and to follow the instructions correctly and help you to handle such a complex paper work efficiently.
- A. C., Postdoc
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NIW Approved for a Systems Engineer Advancing AI-Driven Biomanufacturing and Sustainable Food Production Research Following RFE

“My attorney did an excellent job preparing my I-140 petition. Their attention to detail, responsiveness, and expertise made the entire process smooth and stress-free. I highly recommend their services.”

Approved in 203 days

State of Residence: -

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Success Story: EB1A Approved Despite RFE! Dual NIW + EB1A Victory for Indian Medical Director via Premium Processing

“It has been a pleasure working with Chen on my EB1A NIW journey. I heard about Chen years ago and hence had the confidence to go with them. I liked their meticulous attitude in preparing the case draft and collecting evidence. Chen has a ton of experience with EB1 and NIW categories. Chen has also been prompt in responding to my queries. I was told the officer who had issued my RFE had only a 30% approval rate. I was nervous due to the recent significant drop in the EB1A approval rate. However, Chen was a great help throughout the process, and I am satisfied with her service. I wish them all the best and endorse her for physicians willing to file an EB1A NIW petition.”

Approved in 15 days

State of Residence: Illinois

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Success Stories: Advancing Human-Centered Technologies: Postdoctoral Fellow Secures EB1A and NIW Approvals Despite RFE

“Thank you so much for your tremendous help in my petitions for NIW and EB1A.”

Approved in 16 days

State of Residence: Georgia

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Success Story: EB1A Approved for Nanotechnology Engineer Advancing Energy and Sensor Applications

“Thank you for all the help.”

Approved in 29 days

State of Residence: Canada

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Success Stories: Medical Scientist from Nepal in Biomedical Science Secures EB2-NIW Approval, Overcoming RFE Challenge

“This is fantastic news! I want to extend my sincere thanks to your entire team for their outstanding assistance with my I-140 application and the subsequent I-140 RFE. I truly believe my case wouldn’t have been approved without the dedication and expertise of your professionals.”

Approved in 169 days

State of Residence: Florida

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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: Overcoming RFE! Our Firm Helped an Iraqi Senior Manager of Data Science Secure NIW Approval via Premium Processing

“I’m incredibly grateful to NAILG for guiding me through every step of the NIW petition process, especially when responding to the RFE. It meant a lot to have a team that understood both the technical depth and national importance of my work. Their attention to detail, responsiveness, and strategic framing of my case played a key role in the approval. From initial consultation to premium processing submission, they handled everything with professionalism and care. I highly recommend NAILG to any researcher or professional pursuing the NIW path.”

Approved in 174 days

State of Residence: North Carolina

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EB1A Approved for Cancer Biology Researcher Advancing Genome Stability and DNA Damage Response Research

“It was a great pleasure working with your team: the responses were professional and prompt.”

Approved in 21 days

State of Residence: California

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Success Stories: At the Molecular Crossroads: Biomedical Researcher Secures NIW Approval

“Thank you very much for your continuous support.”

Approved in 520 days

State of Residence: Pennsylvania

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Success Stories: Healing Through Precision: A Dual Triumph in Oncology

“I am very fortunate to have completed the EB-1A and EB-2 NIW case applications with the Chen Immigration Team at North American Immigration Law Group. Ms. Chen’s team is experienced, efficient, and trustworthy.”

Approved in 85 days

State of Residence: China

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Success Stories: An Iranian PhD Candidate’s Path to Success: EB2-NIW Petition Approved with No Request for Evidence

“I had a very positive experience working with the North America Immigration Law Group on my NIW petition. They were consistently responsive (i.e., every question I had was answered within 24 hours), and they followed through on every step they outlined from the beginning, which made me find them trustworthy. After I signed the agreement, they provided access to a well-organized client webpage that made it easy to keep track of tasks, documents, and deadlines. The whole process felt structured and manageable thanks to that system.”

Approved in 562 days

State of Residence: Illinois

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Success Stories: A Precision Mind Behind the Lens: EB1A Approved for Fluorescence Microscopy Researcher

“Thank you so much for all your efforts on my green card application. I’m very grateful for all your help.”

Approved in 503 days

State of Residence: New Mexico

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NIW Approved for a Researcher Advancing Wireless Networks Despite a Request for Evidence (RFE)

“I truly appreciate your support and guidance throughout this process — it’s been a pleasure working with your team. Once again, thank you for your excellent service.”

Approved in 422 days

State of Residence: -

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Success Story: Just 12 Days to NIW Success! Our Firm Helped a Nepal Staff Scientist Get Approved Swiftly with Premium Processing Service

“This is great news!! I feel very elated to have my NIW approved!!”

Approved in 12 days

State of Residence: North Carolina

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Success Stories: A Chinese Power Systems Research Engineer Secures EB2-NIW Approval in Just Over One Month via the Premium Processing

“Thank you very much for your help! Really excited that my case got approved without RFE. Thank you so much!”

Approved in 37 days

State of Residence: Washington

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