Mark Madison O'Brien
Mark M. O'Brien, a Law corporation
Monrovia, CA • Serving Los Angeles County
About Mark Madison O'Brien
Mark Madison O'Brien is a California-licensed attorney practicing in Monrovia, Los Angeles County. Admitted to the State Bar of California in 1971 (Bar #48420) with 55 years of practice. Currently practices at Mark M. O'Brien, a Law corporation.
This profile was compiled from publicly available State Bar of California records. Is this your profile? Claim it to add your bio, photo, and more.
Education
- Law School: USC Law School; Los Angeles CA
Common questions about Real Estate in California
Answered by California Legal Guide
How do I find a California real estate attorney?
Browse the 202,089 California real estate attorneys above by county or use the practice-area cards. Each attorney is verified against the State Bar of California records.
What does it cost to hire a California real estate attorney?
California real estate attorneys typically charge flat fees for transactional work or hourly for disputes ($300–$500). California requires extensive seller disclosures via the Transfer Disclosure Statement, and its HOA-heavy market means many transactions involve CC&R review under the Davis-Stirling Act. Escrow commonly takes 30–45 days.
How long does a California real estate case take?
Case duration depends on case type, court calendar, and complexity. Uncontested matters typically resolve in 3-6 months; contested matters with disputes can take 12-24+ months. Your attorney can give you a more specific estimate based on your facts.
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Office Location
Mark M. O'Brien, a Law corporation
Mark M. O'Brien, a Law corporation, 50 W Lemon Ave, Ste 29
Monrovia, CA 91016
Discipline status
We publish disciplinary status sourced from public State Bar of California records on every attorney profile. We display this transparently because clients deserve full information. Disciplinary history alone does not mean an attorney is unqualified — many attorneys with past discipline are competent practitioners — but it is information clients have a right to know when making a hiring decision.
Verified from State Bar of California records 2026-06-13.
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