C. Sei-Hee Arii

For 15 years C. Sei-Hee Arii has successfully litigated criminal, serious traffic (DUI/DWI), and civil cases. In 2013, 2014, 2015, and 2016 she received AVVO’s Superb 10.0 rating and its Clients’ Choice Award. She has been selected for inclusion in the following lists: Maryland and Washington, D.C. Super Lawyers® (2010-2016) (limited to 5% of Maryland and D.C. lawyers); “Top 100 Trial Lawyers in Maryland” (2010- 2016); “Top 100 Criminal Defense Lawyers in Maryland” (2013- 2015); and Washingtonian Magazine’s Best Lawyers (2011-2012).
Arii Law Firm offers quality legal services at a reasonable price.


Fixed (sometimes), Free consultation (60 minutes)

Payment types:

Cash, Check, Credit card

Contact info
Arii Law Firm401 East Jefferson Street
Suite 208
Rockville, MD, 20850

Office (240) 478-6274

MD Active 2001 09/20/2015
VA Authorized to practice law 2000 03/31/2016
DC Active 1999 07/10/2016

Top 100 Criminal Lawyers in Maryland National Trial Lawyers Association 2013
Top Lawyers – Stars of the Bar Washingtonian Magazine 2011
Top 100 Trial Lawyers in Maryland (2010 to Present) The National Trial Lawyers Association 2010
Super Lawyer (2010 to Present) Maryland Super Lawyers 2010
Super Lawyer (2010 to Present) Washington DC Super Lawyers 2010
Committee Chair of the Year Award: Technology Committee Montgomery County Bar Association 2008
Bar Foundation Fellow Montgomery County Bar Association 2008
Outstanding Contribution Award Montgomery County Inn of Court 2007
Bar Foundation Fellow Maryland State Bar Association 2005

Work experience
Owner Arii Law Firm, LLC 2011 – Present
Partner Heeney & Arii, Chartered 2006 – 2011
Associate Law Office of Thomas L. Heeney, Chartered 2004 – 2006
Associate Heeney, Armstrong, & Heeney 2001 – 2004
Associate Law Office of Judy Feinberg 2000 – 2001

La Pier & Associates NHTSA DWI Detection and Standardized Field Sobriety Testing 3 Day Program 2013
National College for DUI Defense Mastering Scientific Evidence in DWI/DUI Cases 3 Day Program 2012
Georgetown University Law Center Intensive Session in Trial Advocacy Skills 10 Day Program 2002
American University, Washington College of Law Law JD – Juris Doctor 1998
Smith College Psychology BA – Bachelor of Arts 1995

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