Dr. Mangmang (Eric) Cai earned his Juris Doctor degree from the Georgetown University Law Center, Washington, D.C. Prior to earning his law degree, he received his Ph.D. degree in Organic Chemistry from the University of Maryland, College Park, and a Bachelor of Science degree in Chemistry from Peking University, China. Holding a professional law degree and a hard science degree from the most prestigious universities in the United States and China, Dr. Cai has acquired the knowledge and expertise to provide a full range of legal services in a manner rarely matched by other law firms. His practice focuses on Patent Law, U.S. Immigration Law, Commercial and Business Law, Intellectual Property, and Litigations. Prior to founding the New Weiming Law Group, Dr. Cai also worked for several major U.S. law firms and a lobbying group in the Washington, D.C. metro area. He has successfully advised and represented clients in cases involving immigration, patent application, contracts, and a variety of other legal matters.
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Practice Area
18 years
Sometimes
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Chat withState: District of Columbia
Acquired: 2009
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State: Virginia
Acquired: 2008
No misconduct found
7925 Jones Branch Drive, Suite 5150, Tysons, VA, 22102
252 Client Reviews
Showing 1 - 5 of 83 reviews | Responsiveness
Posted by anonymous | September 15, 2025 | Hired Attorney | Immigration
Dr. Zhang, Dr. Yang, and Dr. Cai are very professional with my EB1A case!
Dr. Zhang, Dr. Yang, and Dr. Cai are very professional with my EB1A case! The whole I-140 submission and resubmission happened within a very short period in an extremely efficient manner!
Posted by Xiaoqiang | August 07, 2025 | Hired Attorney | Immigration
Green Card Journey with NewWeiMing
My journey to obtaining a green card, transitioning from NIW to EB1A to I-485, was greatly supported by Dr. Yuanyuan Zhang and Xiao Yang. The timeline of my approvals speaks volumes about their professionalism and exceptional services. Here's a look at my approval timeline: 2022.10: Submitted NIW ...
Posted by Shun | February 22, 2025 | Hired Attorney | Immigration
Effective and affordable
I was introduced to Mangmang Cai by my close friends because they have managed to get their Green Cards by working with New Weiming Law Group. My professional background is a mix of academia and industry. I was not sure how my credentials can meet the USCIS' requirements initially. Luckily, I have ...
Posted by anonymous | November 12, 2024 | Hired Attorney | Immigration
Efficient service and very responsive
I have had a good experience with Dr. Cai and associates for my I-140 NIW petition. They prepared materials for me in a very timely and professional mannor that led to the fast approval of my case. I would highly recommend them for immigration representation.
Posted by Robin Wilson | October 25, 2024 | Hired Attorney | Immigration
The BEST
They are THE BEST for EB category petitions. I am sure they must be good with other categories. Their charges are reasonable and service is very prompt and efficient. They did a very thorough and thoughtful assessment of my petition and helped me file it which got approved easily. Would highly recomm...
"I'm pleased to endorse Mangmang. He is a top-notch immigration lawyer and a zealous advocate for his clients. A highly recommended attorney."
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2005
Top 0.1% in LSAT, Law School Admission Council (LSAC)
1991
First Prize, Chemistry Competition, Education System in China
2009 - Present
Attorney, New Weiming Law Group
2017 - Present
American Immigration Lawyers AssociationMember
2008 - Present
Virginia State BarMember
Mostly approved. See https://nwmlaw.com/approvals/casesummaries
2008
J.D.
2001
Ph.D.
N/A
BS - Bachelor of Science
2019
Current Trends and New Developments in Employment-Based Greencard Application
2007
2002
2000
2000
English
Mandarin