Mark Mermelstein, Business Attorney in Los Angeles, California
Over 28 years of legal practice · focused on Business, Criminal Defense, and Litigation · 5.0/5 rating from 1 verified client review
PartneratOrrick, Herrington & Sutcliffe LLP
Los Angeles, CA
Practicing business in Los Angeles since 1998.
- 28+
- Years practicing
- 5.0 ★
- 1 client review
- 3
- Bar admissions
Practices in
Are you Mark Mermelstein?
This profile was built from public bar records and is still unclaimed. Claim it free to control your photo, bio, and fees — and get client inquiries sent straight to you.
Quick answer
Mark Mermelstein is a partner based in Los Angeles, CA. The practice focuses on Business, Criminal Defense, and Litigation. Mark has over 28 years of legal experience. Currently practicing at Orrick, Herrington & Sutcliffe LLP. Rated 5.0 out of 5 from 1 client review.
- Based in
- Los Angeles, CA
- Experience
- over 28 years
- Known for
- Business · Criminal Defense · Litigation
- Handles Business, Criminal Defense, and Litigation matters from Los Angeles, CA.
- Over 28 years of practice as a licensed attorney.
- Recognized with Peer Reviewed.
About Mark Mermelstein: Mark Mermelstein is a partner based in Los Angeles, CA. The practice focuses on Business, Criminal Defense, and Litigation. Mark has over 28 years of legal experience. Currently practicing at Orrick, Herrington & Sutcliffe LLP. Rated 5.0 out of 5 from 1 client review.
Areas of practice
Mark's practice areas in Los Angeles
Mark concentrates on business, criminal defense, litigation, and white collar. Each area below outlines the kind of case Mark handles, typical outcomes to expect, and how the intake process starts.
Business
View other Business attorneys
Criminal Defense
View other Criminal Defense attorneys
Litigation
View other Litigation attorneys
White Collar
View other White Collar attorneys
Business cases in Los Angeles, California
Mark takes business matters in Los Angeles, California. Typical engagements include intake calls to scope the issue, review of any records or filings you already have, and a written strategy memo before Mark agrees to represent you.
Criminal Defense cases in Los Angeles, California
Mark takes criminal defense matters in Los Angeles, California. Typical engagements include intake calls to scope the issue, review of any records or filings you already have, and a written strategy memo before Mark agrees to represent you.
Litigation cases in Los Angeles, California
Mark takes litigation matters in Los Angeles, California. Typical engagements include intake calls to scope the issue, review of any records or filings you already have, and a written strategy memo before Mark agrees to represent you.
White Collar cases in Los Angeles, California
Mark takes white collar matters in Los Angeles, California. Typical engagements include intake calls to scope the issue, review of any records or filings you already have, and a written strategy memo before Mark agrees to represent you.
Biography
Mark Mermelstein, business attorney serving Los Angeles
Mark Mermelstein is a partner based in Los Angeles, CA. The practice focuses on Business, Criminal Defense, and Litigation. Mark has over 28 years of legal experience. Currently practicing at Orrick, Herrington & Sutcliffe LLP. Rated 5.0 out of 5 from 1 client review. Mark works from Los Angeles, California and takes on business matters across the region.
Mark Mermelstein is a lawyer practicing white collar criminal defense, complex business litigation, business law and 1 other area of law. Mark received a B.A. degree from McGill University in 1994, and has been licensed for 28 years. Mark practices at Orrick, Herrington & Sutcliffe LLP in Los Angeles, CA.
Mark's approach to business cases
Mark Mermelstein is a lawyer practicing white collar criminal defense, complex business litigation, business law and 1 other area of law. Mark received a B.A. degree from McGill University in 1994, and has been licensed for 28 years. Mark practices at Orrick, Herrington & Sutcliffe LLP in Los Angeles, CA.
The kind of cases Mark takes
Mark reviews new inquiries case-by-case for business, criminal defense, and litigation matters in Los Angeles and the surrounding California area.
Credentials
Credentials — where Mark studied and practices
University of Pennsylvania Law School
J.D. · 1997
McGill University
B.A. · 1994
Jurisdictions
Mark's state bar admissions
US. Court of Appeals
2003 · ACTIVE
California U.S. Dist
2000 · ACTIVE
New York
1998 · ACTIVE
Mark studied at J.D. in University of Pennsylvania Law School and B.A. in McGill University.
Law school and academic background
Mark completed J.D. in University of Pennsylvania Law School and B.A. in McGill University. Formal legal training is one signal of substantive knowledge — the day-to-day practice Mark runs in California is where that training gets applied to real client questions.
Recognition
Mark's legal honors and published work
Mark has received 1 formal recognition from bar associations, industry bodies, and peer-review services.
Peer Reviewed
Legal awards and honors
Peer Reviewed.
Affiliations
Mark's professional memberships and bar associations
Los Angeles County and American Bar Associations
membership
Locations
Mark Mermelstein's office in Los Angeles
Mark's primary office is at 777 S. Figueroa St., Ste. 3200, Los Angeles, CA, 90017. In-person meetings are by appointment; a phone intake usually comes first.
Orrick, Herrington & Sutcliffe LLP
777 S. Figueroa St., Ste. 3200
Los Angeles, CA 90017
Open in Google MapsClient feedback
Client reviews of Mark Mermelstein — 5.0/5 rating from 1 verified client review
Every review below is from a verified client of Mark. Reviews cover communication, case outcome, and value — the three signals that matter most when comparing business attorneys in Los Angeles.
5.0
1 client review
Client ratings are sourced from public records and editorial research. Reviews on LawyersListed are accepted from verified clients once Mark Mermelstein claims this profile.
Read all reviewsHiring guide
How to hire Mark Mermelstein — what to expect in your first consultation
Working with a new business attorney should feel structured. Here's how the first two conversations with Mark usually go, from the moment you request a consult to the day representation begins.
Consultation formats and pricing
Mark charges for the initial consult. That fee is credited toward representation if you retain Mark'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; Mark will tell you what matters and what doesn't.
Questions to ask a business attorney in Los Angeles, California
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 Mark
Mark 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. Mark confirms the model in the engagement letter before any work starts.
Payment methods and payment plans
Mark'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 Mark Mermelstein
How much does it cost to hire Mark for a business case?
Cost depends on the type of matter, the fee model (contingency, flat, hourly), and how contested the case becomes. Mark walks through the likely range during the consult so there are no surprises.
Does Mark offer a free consultation?
Mark charges for the initial consult; that fee is credited toward representation if you retain Mark's office. Some business attorneys offer free consults — check Mark's current terms during booking.
How long do business cases in California 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. Mark gives a realistic estimate for your facts at the consult — vague answers here are a red flag.
Can Mark take my case if I'm outside Los Angeles?
Mark is licensed in California. Matters governed by California law are the natural fit. Out-of-state matters are handled case-by-case, sometimes with local co-counsel. Ask during intake — Mark 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 Mark?
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. Mark will filter what matters — over-preparing at intake is always cheaper than needing a second meeting.
Is Mark accepting new business clients right now?
Mark'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 Los Angeles, San Francisco and San Diego in California
Mark handles business matters throughout California. Each city below is a direct link into the search page for verified business attorneys in that community.
- Los Angeles39,975 attorneys
- San Francisco26,380 attorneys
- San Diego16,903 attorneys
- Sacramento10,561 attorneys
- Irvine6,831 attorneys
- Oakland5,709 attorneys
- San Jose5,009 attorneys
- Palo Alto4,084 attorneys
- Beverly Hills3,348 attorneys
- Newport Beach3,106 attorneys
- Pasadena2,894 attorneys
- Santa Monica2,756 attorneys
More counsel
Other top-rated business attorneys in California
If Mark's intake is full or the fit isn't right, these business attorneys in Los Angeles handle similar matters. Every profile below is verified and open to consultations.




