
C. Sei-Hee Arii, Business Attorney in Rockville, Maryland
Over 27 years of legal practice · focused on Business, Car Accidents, and Criminal Defense · 5.0/5 rating from 44 verified client reviews
MemberatArii Law Firm, LLC
Rockville, MD
Practicing business in Rockville since 1999.
- 27+
- Years practicing
- 5.0 ★
- 44 client reviews
- 3
- Bar admissions
Are you C. Sei-Hee Arii?
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Quick answer
C. Sei-Hee Arii is a member based in Rockville, MD. The practice focuses on Business, Car Accidents, and Criminal Defense. C. has over 27 years of legal experience. Currently practicing at Arii Law Firm, LLC. Rated 5.0 out of 5 from 44 client reviews.
- Based in
- Rockville, MD
- Experience
- over 27 years
- Known for
- Business · Car Accidents · Criminal Defense
- Handles Business, Car Accidents, and Criminal Defense matters from Rockville, MD.
- Over 27 years of practice as a licensed attorney.
- Recognized with AV Preeminent.
About C. Sei-Hee Arii: C. Sei-Hee Arii is a member based in Rockville, MD. The practice focuses on Business, Car Accidents, and Criminal Defense. C. has over 27 years of legal experience. Currently practicing at Arii Law Firm, LLC. Rated 5.0 out of 5 from 44 client reviews.
Areas of practice
C.'s practice areas in Rockville
C. concentrates on business, car accidents, criminal defense, drug crimes, and dui/dwi. Each area below outlines the kind of case C. handles, typical outcomes to expect, and how the intake process starts.
Business
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Car Accidents
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Criminal Defense
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Drug Crimes
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DUI/DWI
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DV Defense
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General
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Juvenile
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Litigation
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Motorcycle
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Personal Injury
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TBI/SCI
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Theft
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Traffic
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Truck Accidents
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White Collar
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Wrongful Death
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Business cases in Rockville, Maryland
C. takes business matters in Rockville, Maryland. Typical engagements include intake calls to scope the issue, review of any records or filings you already have, and a written strategy memo before C. agrees to represent you.
Car Accidents cases in Rockville, Maryland
C. takes car accidents matters in Rockville, Maryland. Typical engagements include intake calls to scope the issue, review of any records or filings you already have, and a written strategy memo before C. agrees to represent you.
Criminal Defense cases in Rockville, Maryland
C. takes criminal defense matters in Rockville, Maryland. Typical engagements include intake calls to scope the issue, review of any records or filings you already have, and a written strategy memo before C. agrees to represent you.
Drug Crimes cases in Rockville, Maryland
C. takes drug crimes matters in Rockville, Maryland. Typical engagements include intake calls to scope the issue, review of any records or filings you already have, and a written strategy memo before C. agrees to represent you.
DUI/DWI cases in Rockville, Maryland
C. takes dui/dwi matters in Rockville, Maryland. Typical engagements include intake calls to scope the issue, review of any records or filings you already have, and a written strategy memo before C. agrees to represent you.
Biography
C. Sei-Hee Arii, business attorney serving Rockville
C. Sei-Hee Arii is a member based in Rockville, MD. The practice focuses on Business, Car Accidents, and Criminal Defense. C. has over 27 years of legal experience. Currently practicing at Arii Law Firm, LLC. Rated 5.0 out of 5 from 44 client reviews. C. works from Rockville, Maryland and takes on business matters across the region.
I was born in Busan, a large port city in South Korea, in a working class neighborhood. Busan was one of only two cities in Korea not captured by the North Koreans during the Korean War. Part of the local culture there was to sleep on a wooden pillow, where it was believed to improve the body’s alignment and release tension. I sometimes think of that wooden pillow as a metaphor. What can appear to be hard and unyielding, can in time reveal great benefits. I know that some of those early hardships toughened me up and made me value the practical and simple things in life as well as making me a firm believer in looking beneath the surface.
I was thrilled to be able to emigrate to the U.S. territory of Guam when I was six years old. Like so many others, I saw America as a place of endless possibility. There, I had ample opportunity to witness U.S. soldiers on maneuvers and think about how I could achieve a life of service. The military was not for me, but I decided then that the best way for me to help people would be through the framework of the law. (By the way, I offer reduced fees for those in the active military.) I studied hard and was accepted into Smith College where I spent four years in beautiful (and frigid) Massachusetts studying Psychology. Though the law would be my career, it was people that was truly my business.
After an incredible junior year studying Japanese in Nagoya and Tokyo, I graduated from Smith College in 1995. I then went to D.C. to study law at American University Washington College of Law. I lived in a tiny apartment and rode my bike up the steep hill to the law school where it soon became apparent that there was a clear path for me. I wanted to help people in my community through the general practice of the law.
When I started my own firm, I knew that its priority would be on helping regular people. My clients include lawyers, doctors, construction workers, landscapers, teachers, students, housekeepers, and soldiers. To me, their occupation is mere window dressing. In my mind, the housekeeper’s work is just as valuable as the doctor’s work. They come to me with a problem and I help them find the best solution.
I firmly believe in the rule of law as one of the hallmarks of democracy, but the law is an imperfect instrument and justice is not a given. I see my role as mitigating the many unfair things that can arise when the blunt instrument of the law is applied to an individual who has unique circumstances. I believe that everyone deserves a second chance and it is my job to protect the average person from the ruthlessness that can sometimes emerge in the courtroom when the law is applied heartlessly.
If you were to talk to the people who know me best, they would say that the way I approach cases are with tenacity, extreme focus – to put it in plainer words, I am like a dog with a bone, I give it my all and I don’t give up – and without bias. I still think about that wooden pillow. A hard exterior may reveal something far more complex. So, it is with people.
I have successfully litigated criminal, serious traffic (DUI/DWI), and civil cases for over 20 years. From 2013 to 2023, 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 (2019-20 23 ). I have been selected for inclusion in the following lists: Rue Ratings' Best Attorneys of America (2015-20 23 ); Maryland and Washington, D.C. Super Lawyers® (2010-20 23 ) (limited to 5% of Maryland and D.C. lawyers); “Top 100 Trial Lawyers in Maryland" (2010- 20 23 ); “Top 100 Criminal Defense Lawyers in Maryland" (2013- 20 23 ); and Washingtonian Magazine's Best Lawyers (2011-2012).
Working with C. on a business matter
I was born in Busan, a large port city in South Korea, in a working class neighborhood. Busan was one of only two cities in Korea not captured by the North Koreans during the Korean War. Part of the local culture there was to sleep on a wooden pillow, where it was believed to improve the body’s alignment and release tension. I sometimes think of that wooden pillow as a metaphor. What can appear…
Who C. represents
C. reviews new inquiries case-by-case for business, car accidents, and criminal defense matters in Rockville and the surrounding Maryland area.
Credentials
Credentials — where C. studied and practices
Washington College of Law
J.D. · 1998
Smith College
B.A. · 1995
Jurisdictions
C.'s state bar admissions
Maryland
2001 · ACTIVE
Virginia
2000 · ACTIVE
District of Columbia
1999 · ACTIVE
C. studied at J.D. in Washington College of Law and B.A. in Smith College.
Law school and academic background
C. completed J.D. in Washington College of Law and B.A. in Smith College. Formal legal training is one signal of substantive knowledge — the day-to-day practice C. runs in Maryland is where that training gets applied to real client questions.
Recognition
C.'s legal honors and published work
C. has received 1 formal recognition from bar associations, industry bodies, and peer-review services.
AV Preeminent
Legal awards and honors
AV Preeminent.
Locations
C. Sei-Hee Arii's office in Rockville
C.'s primary office is at 21 Church Street, Suite 600, Rockville, MD, 20850. In-person meetings are by appointment; a phone intake usually comes first.
Client feedback
Client reviews of C. Sei-Hee Arii — 5.0/5 rating from 44 verified client reviews
Every review below is from a verified client of C.. Reviews cover communication, case outcome, and value — the three signals that matter most when comparing business attorneys in Rockville.
5.0
44 client reviews
Client ratings are sourced from public records and editorial research. Reviews on LawyersListed are accepted from verified clients once C. Sei-Hee Arii claims this profile.
Read all reviewsHiring guide
How to hire C. Sei-Hee Arii — what to expect in your first consultation
Working with a new business attorney should feel structured. Here's how the first two conversations with C. usually go, from the moment you request a consult to the day representation begins.
Consultation formats and pricing
C. charges for the initial consult. That fee is credited toward representation if you retain C.'s office.
What to bring to your first meeting
Bring any documents you already have — police reports, medical records, filed pleadings, correspondence from an insurer, a copy of the contract at issue. If you're not sure, err on the side of bringing everything; C. will tell you what matters and what doesn't.
Questions to ask a business attorney in Rockville, Maryland
A short list to run through before you commit: How many business matters have you handled in the last year? What's your fee structure? Who else in the office will work on this? What's your realistic estimate of timeline and range of outcomes? How do I reach you between meetings?
Fees & payment
Fees, payment methods, and consultation options for C.
C. discusses fees during intake so the arrangement fits the matter. Contingency, hourly, and flat-fee options are all common in business practice — ask which fits.
Hourly rates, contingency fees, and flat-fee options
Every business matter is priced differently. Simple document review might be a flat fee. Injury litigation is often contingency. Complex commercial disputes usually run hourly with a retainer. C. confirms the model in the engagement letter before any work starts.
Payment methods and payment plans
C.'s office accepts standard payment methods. Ask about payment plans if the retainer is a stretch — many business practices work with clients on structured schedules.
Frequently asked
Frequently asked questions about C. Sei-Hee Arii
How much does it cost to hire C. for a business case?
Cost depends on the type of matter, the fee model (contingency, flat, hourly), and how contested the case becomes. C. walks through the likely range during the consult so there are no surprises.
Does C. offer a free consultation?
C. charges for the initial consult; that fee is credited toward representation if you retain C.'s office. Some business attorneys offer free consults — check C.'s current terms during booking.
How long do business cases in Maryland typically take?
Simple business matters can wrap in a few weeks; disputed cases can run 6–18 months from intake to resolution, longer if the matter goes to trial. C. gives a realistic estimate for your facts at the consult — vague answers here are a red flag.
Can C. take my case if I'm outside Rockville?
C. is licensed in Maryland. Matters governed by Maryland law are the natural fit. Out-of-state matters are handled case-by-case, sometimes with local co-counsel. Ask during intake — C. will tell you if the case is a fit or refer you to someone closer to your court.
What should I bring to my first meeting with C.?
Bring every document that touches the dispute: contracts, correspondence, police or medical reports, filed pleadings, invoices, photographs, insurance letters. Also bring a written timeline of what happened, in your own words. C. will filter what matters — over-preparing at intake is always cheaper than needing a second meeting.
Is C. accepting new business clients right now?
C.'s intake status shifts week to week. Submit the form; the office will confirm availability or refer the matter out.
Areas served
Business attorneys serving Rockville, Baltimore and Annapolis in Maryland
C. handles business matters throughout Maryland. Each city below is a direct link into the search page for verified business attorneys in that community.
More counsel
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If C.'s intake is full or the fit isn't right, these business attorneys in Rockville handle similar matters. Every profile below is verified and open to consultations.





