Mangmang Cai

Mangmang Cai

4.9
Rating: 7.8

Licensed for 17 years

Immigration Lawyer at Tysons, VA
Practice Areas: Immigration

7925 Jones Branch Drive, Suite 5150, Tysons, VA

About Mangmang

Biography

Practice Areas

1

Practice Area

Immigration 100%

EB-1, NIW, O-1, H-1B, PERM, L-1, and other green card and visa applications for scientists and professionals.

17 years

100%

Fees and Rates

Cost

Retainer

Sometimes


Payment Methods

  • Cash
  • Check
  • Credit Card

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Licenses

Licensed in District of Columbia for 16 years

State: District of Columbia

Acquired: 2009

Good Standing

No misconduct found

Licensed in Virginia for 17 years

State: Virginia

Acquired: 2008

Active

No misconduct found

Location

New Weiming Law Group, PLLC

7925 Jones Branch Drive, Suite 5150, Tysons, VA, 22102

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Mangmang Cai's Reviews

Avvo Review Score

4.9 /5.0

249 Client Reviews

Posted by anonymous | September 15, 2025 | Hired Attorney

This review is from a person who hired this attorney.

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 anonymous | August 18, 2025 | Hired Attorney

This review is from a person who hired this attorney.

Professional Service for My NIW I-140, I-485, and Two H-1B Extension Petitions

I used Dr. Cai and his team’s services for both my wife’s and my NIW I-140 and I-485 petitions, as well as H1B/H4 extension applications twice. Everything went smoothly, and their professional service and guidance made this multi-year journey much easier for us.

Posted by Xiaoqiang | August 7, 2025 | Hired Attorney

This review is from a person who hired this attorney.

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 ...2023.2 : NIW I-140 approved in just 4 months. I used the NIW I-140 to secure the priority date. In 2024, I consulted Dr. Zhang for an evaluation of my case to explore the possibility of applying for EB1A. She offered practical advice to strengthen and enhance my case. In January 2025, I reached out for another evaluation, and after reviewing my materials, Dr. Zhang promptly advised proceeding with the application. 2025.2. Submitted EB1A 2025.4 : EB1A approved through the premium processing (PP) service. 2025.5 : Submitted I-485 2025.6 : Completed fingerprinting for I-485 2025.8 : I-485 approved. I accomplished everything within half a year, exceeding my expectations. I owe a great deal of gratitude to Dr. Zhang for her strategic case analysis and letter writing. I am also incredibly thankful to Xiao Yang for her timely communication, coordination, and meticulous work in organizing my materials.

Posted by anonymous | May 27, 2025 | Hired Attorney

This review is from a person who hired this attorney.

Professional and prompt reply.

Dr. Cai and Dr. Zhang and their colleagues are nice and professional. I would like to share my gratitude for their help to get my application approved!

Posted by Amanda | April 2, 2025 | Hired Attorney

This review is from a person who hired this attorney.

Highly recommended Mangmang Cai

New Weiming Law Group is a highly professional and responsible firm. I highly recommend Dr. Mangmang Cai and his firm — he provided exceptional, timely, and professional support, handled our complex case with great care, strategy and execution, and his firm offered affordable services which are super... reasonable and accessible.

See All Client Reviews

Mangmang Cai's Lawyer Endorsements

Endorse Mangmang
Somair Syed Alam headshot
Somair Alam

Immigration lawyer | Feb 11

Relationship: Fellow lawyer in community

"I'm pleased to endorse Mangmang. He is a top-notch immigration lawyer and a zealous advocate for his clients. A highly recommended attorney."

View All Endorsements

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This attorney hasn't created any attorney endorsements recently on Avvo.

Experience

Rating:  7.8 (Very Good)

Honors

2005

Top 0.1% in LSAT, Law School Admission Council (LSAC)

1991

First Prize, Chemistry Competition, Education System in China

Work Experience

2009 - Present

Attorney, New Weiming Law Group

Associations

2017 - Present

American Immigration Lawyers Association

Member

2008 - Present

Virginia State Bar

Member

Sample of Legal Cases

EB-1A, EB-1B, NIW, O-1, H-1B, L-1, PERM, Family-Based, and other applications

Mostly approved. See https://nwmlaw.com/approvals/casesummaries

See More Legal Cases

Education

2008

Georgetown University Law Center

J.D.

2001

University of Maryland

Ph.D.

N/A

Peking University

BS - Bachelor of Science

Speaking Engagements

2019

Seminars at Harvard and MIT

Current Trends and New Developments in Employment-Based Greencard Application

Publications

Languages

English

Mandarin

Avvo Rating

Our Rating is calculated using information the lawyer has included on their profile in addition to the information we collect from state bar associations and other organizations that license legal professionals. Attorneys who claim their profiles and provide Avvo with more information tend to have a higher rating than those who do not.

What determines Avvo Rating?
  • Experience & background Years licensed, work experience, education
  • Legal community recognition Peer endorsements, associations, awards
  • Legal thought leadership Publications, speaking engagements
  • Discipline Disciplinary information may not be comprehensive, or updated. We recommend that you always check a lawyer's disciplinary status with their respective state bar association before hiring them.
Avvo Rating Levels
10.0 - 9.0 Superb8.9 - 8.0 Excellent7.9 - 7.0 Very Good6.9 - 6.0 Good5.9 - 5.0 Average4.9 - 4.0 Concern3.9 - 3.0 Caution2.9 - 2.0 Strong Caution1.9 - 1.0 Extreme Caution