Atty. Douglas M. O'Brien

Atty. Douglas M. O'Brien

Mr. Douglas M.

Houston Houston 50 yrs experience 50 year
Call (346) 553-8433 Book Appointment

Profile Summary

About Douglas M. O'Brien at a glance

Douglas M. O'Brien is a Principal Attorney based in Houston, Texas, practicing at Moen, Cain & O'Brien. They have 50+ years of legal experience, licensed to practice since 1976. Their practice focuses on dui/dwi, contracts, criminal defense, business, and federal crimes. Admitted to practice in Texas US Supreme Court Fifth Circuit Court of Appeals Tex Eleventh Circuit Court of Appeals Texas No (1976). Educated at South Texas College of Law (J.D., 1976) and University of Houston (B.S., 1973). Recognitions include AV Preeminent. Active member of Houston Bar Association State Bar of Texas. Serands clients in Houston, TX and the surrounding metropolitan area.

Verified attorney profile · Updated June 2026

About

  • Mr. Douglas M. O'Brien is a lawyer practicing appeals, banking fraud, business fraud and 13 other areas of law
  • Douglas received a B.S. degree from University of Houston in 1973, and has been licensed for 50 years
  • Douglas practices at Moen, Cain & O'Brien in Houston, TX

Practice Areas Explained

Douglas M. O'Brien's Areas of Practice

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

DUI / DWI Defense

Find experienced DUI and DWI defense attorneys near you. Compare verified profiles, read client reviews, and consult about your case for free.

Douglas M. O'Brien is one of 29,976 dui/dwi attorneys indexed nationally. Browse dui/dwi attorneys in Texas →

Contracts

Douglas M. O'Brien is one of 76,762 contracts attorneys indexed nationally. Browse contracts attorneys in Texas →

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.

Douglas M. O'Brien is one of 214,270 criminal defense attorneys indexed nationally. Browse criminal defense attorneys in Texas →

Business & Corporate Law

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

Douglas M. O'Brien is one of 501,317 business attorneys indexed nationally. Browse business attorneys in Texas →

Federal Crimes

Douglas M. O'Brien is one of 6,773 federal crimes attorneys indexed nationally. Browse federal crimes attorneys in Texas →

Jurisdictional Context

Why local counsel matters in Texas

Practicing law in Texas. Legal matters in Texas are governed by state-specific rules of civil and criminal procedure, statutes of limitations, and substantive law. Cases originating in Houston are typically filed in the local municipal court or the appropriate Texas state district court, depending on subject matter and amount in controversy. An attorney licensed in Texas 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 Texas courts without local counsel or pro hac vice admission.

Looking for additional Texas attorneys? Browse all attorneys in Houston or all attorneys in Texas.

Frequently Asked

Common questions about Douglas M. O'Brien

Where is Douglas M. O'Brien's law office located?
Douglas M. O'Brien's law practice is located in Houston, Texas. The firm is Moen, Cain & O'Brien. You can contact the office directly through this profile page.
What practice areas does Douglas M. O'Brien handle?
Douglas M. O'Brien focuses on dui/dwi, contracts, criminal defense, business, federal crimes. Each practice area listed reflects experience handling cases of that type in Texas.
How long has Douglas M. O'Brien practiced law?
Douglas M. O'Brien has 50+ years of legal experience and has been licensed since 1976.
Where did Douglas M. O'Brien go to law school?
Douglas M. O'Brien earned their education at (J.D., 1976); (B.S., 1973).
How can I contact Douglas M. O'Brien for a consultation?
You can contact Douglas M. 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.
What awards or recognition has Douglas M. O'Brien received?
Douglas M. O'Brien's notable recognition includes: AV Preeminent.

Education

J.D.
South Texas College of Law
- 1976
B.S.
University of Houston
- 1973

Awards

AV Preeminent

Bar Admissions

Texas US Supreme Court Fifth Circuit Court of Appeals Tex Eleventh Circuit Court of Appeals Texas No
Admitted: 1976

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