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
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7925 Jones Branch Drive, Suite 5150, Tysons, VA, 22102
252 Client Reviews
Showing 1 - 5 of 29 reviews | General Knowledge
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 anonymous | September 29, 2024 | Hired Attorney | Immigration
Great work!
I am excited to share my experience with Dr. Cai Mangmang’s team. They are very professional and knowledgeable, guided me through every step of the process. I highly recommend New Weiming Law Group to anyone seeking immigration assistance.
Posted by zl | September 10, 2024 | Hired Attorney | Immigration
Prompt and Professional Immigration Law Services
I had an excellent experience with this immigration lawyer. Their service was remarkably timely, always responding to my inquiries promptly and meeting all deadlines. The lawyer demonstrated a high level of professionalism and expertise in immigration law, providing clear and accurate advice tailored...
Posted by Myurajan | February 24, 2024 | Hired Attorney | Immigration
NIW EB2 Approved
I appreciate all the help and support Mangmang Cai, Donald Forest, and Doris Ge of the New Weiming Law Group provided to make my NIW EB2 application successful. Their team is very professional and expert in understanding scientific materials, identifying achievements, and effectively transforming and...
Posted by Xu | May 12, 2023 | Hired Attorney | Immigration
Professional service allowing me to get NIW approval in 4 months
I highly recommend Attorney Cai for anyone seeking help with their NIW application. With his expert guidance, I was able to secure NIW approval within 4 months of filing. Before the formal appointment, Attorney Cai provided valuable consultancy that helped me prepare for the application. What sets...
"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