Atty. Matthew Patrick O'Brien

Atty. Matthew Patrick O'Brien

Matthew Patrick O'Brien is a lawyer practicing civil litigation, criminal defense, environmental law and 10 other areas of law. Matthew received a B.S. degree from Duke University in 2001, and has been licensed for 21 years.

Miami Miami 21 yrs experience 21 year
Call (844) 588-2324 Book Appointment

Profile Summary

About Matthew Patrick O'Brien at a glance

Matthew Patrick O'Brien is an Attorney based in Miami, Florida, practicing at Hamilton, Miller & Birthisel LLP. They have 21+ years of legal experience, licensed to practice since 2005. Their practice focuses on contracts, personal injury, criminal defense, business, and product liability. Admitted to practice in Florida (2005) and U.S. District Court, Southern District of Florida U.S. Court of Appeals, Eleventh Circuit (2006). Educated at University of Miami School of Law (J.D., 2004) and Duke University (B.S., 2001). Active member of The Florida Bar. Provides legal services in Spanish. Serands clients in Miami, FL and the surrounding metropolitan area.

Verified attorney profile · Updated June 2026

About

  • Matthew Patrick O'Brien is a lawyer practicing civil litigation, criminal defense, environmental law and 10 other areas of law
  • Matthew received a B.S. degree from Duke University in 2001, and has been licensed for 21 years
  • Matthew practices at Hamilton, Miller & Birthisel LLP in Miami, FL

Practice Areas Explained

Matthew Patrick O'Brien's Areas of Practice

Each practice area below reflects the types of cases Matthew Patrick O'Brien handles, with a brief overview of what that area of law covers.

Contracts

Matthew Patrick O'Brien is one of 76,762 contracts attorneys indexed nationally. Browse contracts attorneys in Florida →

Personal Injury

Personal injury attorneys help accident victims recover compensation for medical bills, lost wages, and pain & suffering. Most work on contingency — no fee unless you win.

Matthew Patrick O'Brien is one of 264,852 personal injury attorneys indexed nationally. Browse personal injury attorneys in Florida →

Criminal Defense

A criminal defense attorney protects your rights from arrest through trial. Find experienced lawyers handling DUI, drug, federal, theft, and violent-crime charges.

Matthew Patrick O'Brien is one of 214,270 criminal defense attorneys indexed nationally. Browse criminal defense attorneys in Florida →

Business & Corporate Law

Business attorneys advise founders and growing companies on entity formation, contracts, financing, M&A, and dispute resolution.

Matthew Patrick O'Brien is one of 501,317 business attorneys indexed nationally. Browse business attorneys in Florida →

Product Liability

Matthew Patrick O'Brien is one of 66,193 product liability attorneys indexed nationally. Browse product liability attorneys in Florida →

Jurisdictional Context

Why local counsel matters in Florida

Practicing law in Florida. Legal matters in Florida are governed by state-specific rules of civil and criminal procedure, statutes of limitations, and substantive law. Cases originating in Miami are typically filed in the local municipal court or the appropriate Florida state district court, depending on subject matter and amount in controversy. An attorney licensed in Florida brings working knowledge of local procedural deadlines, judicial practices in this andnue, and the substantive law that applies to cases brought here. Out-of-state attorneys generally cannot represent clients in Florida courts without local counsel or pro hac vice admission.

Looking for additional Florida attorneys? Browse all attorneys in Miami or all attorneys in Florida.

Frequently Asked

Common questions about Matthew Patrick O'Brien

Where is Matthew Patrick O'Brien's law office located?
Matthew Patrick O'Brien's law practice is located in Miami, Florida. The firm is Hamilton, Miller & Birthisel LLP. You can contact the office directly through this profile page.
What practice areas does Matthew Patrick O'Brien handle?
Matthew Patrick O'Brien focuses on contracts, personal injury, criminal defense, business, product liability. Each practice area listed reflects experience handling cases of that type in Florida.
How long has Matthew Patrick O'Brien practiced law?
Matthew Patrick O'Brien has 21+ years of legal experience and has been licensed since 2005.
What languages does Matthew Patrick O'Brien speak?
Matthew Patrick O'Brien provides legal services in Spanish. Bilingual representation can be especially important when contracts, testimony, or court filings require accurate translation.
Where did Matthew Patrick O'Brien go to law school?
Matthew Patrick O'Brien earned their education at (J.D., 2004); (B.S., 2001).
How can I contact Matthew Patrick O'Brien for a consultation?
You can contact Matthew Patrick O'Brien directly through this profile page. Click "Ask the Attorney" to submit a question, or "Schedule a Consultation" to book a meeting. Most claimed-profile attorneys respond within one business day.

Education

J.D.
University of Miami School of Law
- 2004
B.S.
Duke University
- 2001

Languages

Bar Admissions

Florida
Admitted: 2005
U.S. District Court, Southern District of Florida U.S. Court of Appeals, Eleventh Circuit
Admitted: 2006

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