Mark Madison O'Brien, Litigation Attorney in Monrovia, California
Over 55 years of legal practice · focused on Litigation and Real Estate · 4.4/5 rating from 1 verified client review
Monrovia, CA
Practicing litigation in Monrovia since 1971.
- 55+
- Years practicing
- 4.4 ★
- 1 client review
- 1
- Bar admission
Practices in
Are you Mark Madison O'Brien?
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 Madison O'Brien is an attorney based in Monrovia, CA. The practice focuses on Litigation and Real Estate. Mark has over 55 years of legal experience. Rated 4.4 out of 5 from 1 client review.
- Based in
- Monrovia, CA
- Experience
- over 55 years
- Known for
- Litigation · Real Estate
- Handles Litigation and Real Estate matters from Monrovia, CA.
- Over 55 years of practice as a licensed attorney.
- Recognized with BV Distinguished.
About Mark Madison O'Brien: Mark Madison O'Brien is an attorney based in Monrovia, CA. The practice focuses on Litigation and Real Estate. Mark has over 55 years of legal experience. Rated 4.4 out of 5 from 1 client review.
Areas of practice
Mark's practice areas in Monrovia
Mark concentrates on litigation and real estate. Each area below outlines the kind of case Mark handles, typical outcomes to expect, and how the intake process starts.
Litigation cases in Monrovia, California
Mark takes litigation matters in Monrovia, 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.
Real Estate cases in Monrovia, California
Mark takes real estate matters in Monrovia, 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 Madison O'Brien, litigation attorney serving Monrovia
Mark Madison O'Brien is an attorney based in Monrovia, CA. The practice focuses on Litigation and Real Estate. Mark has over 55 years of legal experience. Rated 4.4 out of 5 from 1 client review. Mark works from Monrovia, California and takes on litigation matters across the region.
Mark Madison O'Brien is a lawyer practicing real estate law, civil practice, real property law. Mark received a A.B. degree from University of California, and has been licensed for 55 years. Mark practices in Monrovia, CA.
How Mark handles litigation matters
Mark Madison O'Brien is a lawyer practicing real estate law, civil practice, real property law. Mark received a A.B. degree from University of California, and has been licensed for 55 years. Mark practices in Monrovia, CA.
The kind of cases Mark takes
Mark reviews new inquiries case-by-case for litigation and real estate matters in Monrovia and the surrounding California area.
Credentials
Credentials — where Mark studied and practices
University of Southern California J.D.
—
University of California A.B.
—
Jurisdictions
Mark's state bar admissions
California
1971 · ACTIVE
Mark studied at — in University of Southern California J.D. and — in University of California A.B..
Law school and academic background
Mark completed — in University of Southern California J.D. and — in University of California A.B.. 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.
BV Distinguished
Legal awards and honors
BV Distinguished.
Locations
Mark Madison O'Brien's office in Monrovia
Mark's primary office is at 50 W Lemon Ave Ste 29, Monrovia, CA, 91016-6152. In-person meetings are by appointment; a phone intake usually comes first.
Client feedback
Client reviews of Mark Madison O'Brien — 4.4/5 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 litigation attorneys in Monrovia.
4.4
1 client review
Client ratings are sourced from public records and editorial research. Reviews on LawyersListed are accepted from verified clients once Mark Madison O'Brien claims this profile.
Read all reviewsHiring guide
How to hire Mark Madison O'Brien — what to expect in your first consultation
Working with a new litigation 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 litigation attorney in Monrovia, California
A short list to run through before you commit: How many litigation 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 litigation practice — ask which fits.
Hourly rates, contingency fees, and flat-fee options
Every litigation 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 litigation practices work with clients on structured schedules.
Frequently asked
Frequently asked questions about Mark Madison O'Brien
How much does it cost to hire Mark for a litigation 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 litigation attorneys offer free consults — check Mark's current terms during booking.
How long do litigation cases in California typically take?
Simple litigation 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 Monrovia?
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 litigation 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
Litigation attorneys serving Monrovia, Los Angeles and San Francisco in California
Mark handles litigation matters throughout California. Each city below is a direct link into the search page for verified litigation attorneys in that community.
More counsel
Other top-rated litigation attorneys in California
If Mark's intake is full or the fit isn't right, these litigation attorneys in Monrovia handle similar matters. Every profile below is verified and open to consultations.
Douglas MacMillan Borthwick
Santa Ana, California
5.0· 118

David Payab, Esq.
Woodland Hills, California
5.0· 108

Arsen Sarapinian, Esq.
Beverly Hills, California
5.0· 100

Jeffrey Robert Loew
San Mateo, California
5.0· 47

Steven A. Kronenberg
San Francisco, California
5.0· 43

Michael Brett Abramson
San Diego, California
5.0· 39