Overall Rating
This is an aggregated review score of Avvo and Lawyers.com reviews.
This is an aggregated review score of Avvo and Lawyers.com reviews.
5.0 /5.0
222 Client Reviews
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C. Sei-Hee Arii
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About C. Sei-Hee
Biography
"Sei-Hee Arii: one in a million attorney; once in a lifetime individual"
"Her knowledge, expertise and professionalism saved my life."
My promise to you: I will look after your best interest; treat you like the individual that you are; and I will fight... for you.
I have successfully litigated criminal, serious traffic (DUI/DWI), and civil cases for over 20 years. From 2013 to 2020, I received AVVO's Superb 10.0 rating and its Clients' Choice Award. I am AV Rated by Martindale-Hubbell, which is the highest level of professional excellence at which a firm can be ranked by its peers, and am a recipient of their "Client Champion-Gold & Platinum" Award (2019-2020). I have been selected for inclusion in the following lists: Maryland and Washington, D.C. Super Lawyers® (2010-2020) (limited to 5% of Maryland and D.C. lawyers); “Top 100 Trial Lawyers in Maryland" (2010- 2020); “Top 100 Criminal Defense Lawyers in Maryland" (2013- 2020); and Washingtonian Magazine's Best Lawyers (2011-2012).
Let me help you. Call or text me at to get started.
Arii Law Firm offers quality legal services at a reasonable price.
Experience Matters. Attorney Arii will Fight for You.
Experience Matters. Attorney Arii will Fight for You.
First DUI/DWI Offense? Experience Matters. Attorney Arii will Fight for You.
Experience Matters. Attorney Arii will Fight for You.
Practice Areas
3
Practice Areas
DUI and DWI
60%
Criminal Defense
20%
Personal Injury
20%
Fees and Rates
Cost
Payment Methods
- Cash
- Check
- Credit Card
Awards
2025 2024 2023
...
+
10
Licenses
Licensed in Maryland for 24 years
State: Maryland
Acquired: 2001
No misconduct found
Licensed in Virginia for 25 years
State: Virginia
Acquired: 2000
No misconduct found
Licensed in District of Columbia for 27 years
State: District of Columbia
Acquired: 1999
No misconduct found
Location
Arii Law Firm
(240) 621-0007
Fax
21 Church Street, Suite 600, Rockville, MD, 20850
ariilaw.com/first-time-dui-dwi/Gallery
Online Presence
Other places you can find C. Sei-Hee online.
C. Sei-Hee Arii's Reviews
Filter Avvo Reviews (178)
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Practice Areas
What Clients Mention
Case Results (146)
Advocacy (101)
Practice Area Knowledge (65)
Recommendation (61)
Professionalism (59)
Responsiveness (43)
Communication Style (40)
General Knowledge (39)
Character & Conduct (29)
Compassion (29)
Cost of Services (27)
Trustworthiness (25)
Payment Plans (4)
Punctuality (3)
Staff & Support (2)
Free Consultations (1)
Showing 1 - 5 of 78 reviews | DUI & DWI
Posted by anonymous | May 17, 2025 | Hired Attorney | DUI & DWI
A responsive, experienced, and genuine attorney
I highly recommend Attorney Arii. From our very first conversation, she put me at ease with her clear, honest assessment of all possible outcomes—best and worst—and that initial transparency proved spot-on in court. Throughout the process she was always prompt, professional, and positive, answering m...
Posted by anonymous | February 12, 2025 | Hired Attorney | DUI & DWI
Fantastic DUI Attorney
I had the privilege of working with Sei-Hee Arii as my attorney for a DUI case, and I couldn’t be more pleased with the outcome. From the start, Sei-Hee displayed remarkable professionalism and dedication. She took the time to thoroughly understand my case, patiently answered all my questions, and pr...
Posted by anonymous | April 13, 2024 | Hired Attorney | DUI & DWI
Experienced and very professional!
I sought the services of Attorney Sei -Hee Arii to handle DUI case. From the outset she displayed exceptional professionalism. She was always prompt in responding to my calls and emails and took time to explain legal terms and processes in a way that I could understand. Her clear communication help...
Posted by M.C | April 03, 2024 | Hired Attorney | DUI & DWI
AHEAD OF THE GAME
I was being charged with a DWI/DUI. Going into court Sei-Hee Arii had a plan A, B, C, D and even a plan E! She assured me she will find every route to win my case. In which she did and got my case dismissed, and expunged! She got me a PBJ for another citation I received. She stayed up endless nights...
Posted by Malik | February 02, 2024 | Hired Attorney | DUI & DWI
Fine and NO TIME!
BEST POSSIBLE OUTCOME! Fine and no time. DUI with an accident and I was very worried about my chances. Went with Arii law firm and it was the best decision I could have made. She was very assertive, knowledgeable, and clear with expectations and communicative. I’m glad I followed her steps. Felt very...
C. Sei-Hee Arii's Lawyer Endorsements
"I endorse Ms. Arii. She's a smart, energized lawyer. Recommended!"
"Sei-Hee is a stellar attorney! She obtains great results in the courtroom because of her hard work, thorough preparation, and command of the law."
"Seihee is our go-to lawyer for our divorce clients who need criminal defense or personal injury representation. She does an exceptional job: very thorough, responsive to client needs, and sensitive to what's going on in related divorce and custody matters."
"Sei-Hee is a terrific criminal defense attorney; she has a great ability to assess a case diligently and negotiate the best outcome or try the matter, whatever the case may be. I have enjoyed coordinating closely with her on cases where her clients have been subject to possible adverse immigration consequences as a result of criminal proceedings."
"Sei-Hee is a dedicated, hard working attorney who is extremely knowledgeable in the field of criminal defense. She provides exemplary defense work for those citizens charged with a crime. I highly recommend her."
Marjorie Chalfant
Medical malpractice lawyer
Neal Meiselman
Divorce and separation lawyer
Nogah Helfant
Divorce and separation lawyer
Eric Singer
Immigration lawyer
Experience
Honors
2025
Super Lawyer, Super Lawyers
2024
Super Lawyer, Super Lawyers
2023
Super Lawyer, Super Lawyers
2022
Super Lawyer, Super Lawyers
2021
Super Lawyer, Super Lawyers
2020
Super Lawyer, Super Lawyers
2019
D.C Superlawyers, SuperLawyers
2019
Client's Choice, Avvo
2019
Superb 10.0 Rating, Avvo
2019
Best Attorneys of America, Rue Ratings
2019
Super Lawyer, Super Lawyers
2018
Super Lawyer, Super Lawyers
2017
Super Lawyer, Super Lawyers
2016
Super Lawyer, Super Lawyers
2015
Super Lawyer, Super Lawyers
2014
Super Lawyer, Super Lawyers
2013
Top 100 Criminal Lawyers in Maryland, National Trial Lawyers Association
2013
Super Lawyer, Super Lawyers
2012
Super Lawyer, Super Lawyers
2011
Super Lawyer, Super Lawyers
2011
Top Lawyers - Stars of the Bar, Washingtonian Magazine
2010
Super Lawyer, Super Lawyers
2010
Super Lawyer (2010 to Present), Washington DC Super Lawyers
2010
Super Lawyer (2010 to Present), Maryland Super Lawyers
2010
Top 100 Trial Lawyers in Maryland (2010 to Present), The National Trial Lawyers Association
2008
Bar Foundation Fellow, Montgomery County Bar Association
2008
Committee Chair of the Year Award: Technology Committee, Montgomery County Bar Association
2007
Outstanding Contribution Award, Montgomery County Inn of Court
2005
Bar Foundation Fellow, Maryland State Bar Association
Work Experience
2011 - Present
Owner, Arii Law Firm, LLC
2006 - 2011
Partner, Heeney & Arii, Chartered
2004 - 2006
Associate, Law Office of Thomas L. Heeney, Chartered
2001 - 2004
Associate, Heeney, Armstrong, & Heeney
2000 - 2001
Associate, Law Office of Judy Feinberg
Associations
2011 - Present
Maryland State Bar AssociationAsian American Bar Committee
2005 - Present
Maryland Criminal Defense Attorneys' AssociationMember
2004 - Present
Women's Bar Association of MarylandMember
2010 - 2011
Women's Bar Association of MarylandSecretary
2009 - 2010
Women's Bar Association of MarylandTreasurer
2007 - 2011
Montgomery County Inn of CourtBarrister
2007 - 2008
Asian Pacific American Bar Association of MarylandSecretary
2003 - 2011
Maryland State Bar AssociationLeadership Academy Committee
Education
2013
La Pier & Associates
3 Day Program
2012
National College for DUI Defense
3 Day Program
2002
Georgetown University Law Center CLE & National Institute for Trial Advocacy
10 Day Program
1998
American University, Washington College of Law
JD - Juris Doctor
1995
Smith College
BA - Bachelor of Arts
Languages
English