
About C.
C. Sei-Hee Arii is an attorney with over 20 years of experience in Maryland, D.C., and Virginia, focusing on DUI/DWI, traffic offenses, criminal misdemeanors, and motor vehicle accidents. She is recognized with numerous awards including AVVO's Superb 10.0 rating, Martindale-Hubbell's Client Champion-Platinum Award, and inclusion in The Best Lawyers in America and Maryland Super Lawyers. She is known for her tenacious and focused advocacy, believing in second chances and protecting individuals from the harsh application of law.
Education
BA
Smith College
JD
American University Washington College of Law
Awards & Recognition
The Best Lawyers in America
DUI/DWI Defense · 2026
AVVO Superb Rating
Superb 10.0 Rating · 2025
AVVO Clients' Choice Award
2025
Martindale-Hubbell Client Champion-Platinum Award
2025
The Best Lawyers in America
DUI/DWI Defense · 2025
Professional Associations
Contact C.
Montgomery County Traffic Crash Intelligence Reports
Published by ThatCarHitMe.com. Sourced from official government open data.
Montgomery County 2025 Annual Report
(10,308 crashes)Montgomery County April 2026 Monthly Report
(784 crashes)Independent research by ThatCarHitMe.com. Not affiliated with any government agency.
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