Margaret O'Brien at a glance
- Current role
- Justice of the Peace
- Jurisdiction
- Texas · State
- Judicial service
- Active
Margaret O'Brien
Justice of the Peace · Dallas County Justice Court, Precinct 2 Place 1
Biography
Professional career
- Judge O'Brien emphasizes fairness, respect, and access to affordable justice, providing resources for legal assistance and financial support for renters
- She has been recognized as a model court by the Texas Justice Court Training Center and serves as a trainer for other judges
Education
- BS in Chemistry from Stephen F. Austin State University and an MS in Environmental Science from the University of Texas Health Science Center.
Additional information
- Her current term ends on December 31, 2026.
- Judge O'Brien was born in Winnipeg, Manitoba, Canada, and has lived in Texas since 1976.
- Democrat and is running for re-election in the general election on November 3, 2026.
- She advanced from the Democratic primary on March 3, 2026, defeating Christina Sowells.
- Effective November 1, 2025, her court implemented mandatory e-filing for all eviction and debt claim cases via.
- Elected in 2018, Judge O'Brien presides over civil cases up to $20,000, including small claims, repair and remedy disputes, evictions, debt claims, traffic tickets, fraudulent checks, and fine-only misdemeanors.
- In 2004, she became a small business owner, is a licensed real estate broker, a Certified Commercial Investment Member (CCIM), and holds a Graduate Certificate in Dispute Resolution/Mediation from Southern Methodist University.
- This allows filings to be submitted online anytime, improving efficiency and accessibility for litigants.
- Widely regarded for her dedication to community safety, fairness in the courtroom, and efficient court management, making her a prominent figure in Dallas County’s judicial system.
- She also handles minor criminal cases (Class C misdemeanors and below), issues mental health warrants, occupational driver’s licenses, and conducts marriage ceremonies.
- Her court serves Balch Springs, East Dallas, Garland, Mesquite, Rowlett, Sachse, Sunnyvale, and Wylie.
- She worked nearly a decade as an Industrial Hygienist for companies including Amoco, Motorola, and Texas Instruments.
- Under her leadership, the court cleared a significant backlog and became one of the busiest in Dallas County.
Applicable Court Rules & Procedures
Remote appearances
Statewide
In justice-court civil proceedings, the judge may allow or require electronic participation after considering case, evidence, access, and party factors; written notice must include joining and evidence-submission instructions.
A judge may allow or require a participant to appear at a court proceeding by videoconference, teleconference, or other available electronic means.Texas Rule of Civil Procedure 500.9, Appearances at Court Proceedings ↗
Statewide
For the specific fine-and-cost hearings governed by Articles 45A.258 and 45A.259, a justice or municipal judge may allow a defendant to appear by telephone or videoconference when an in-person appearance would impose undue hardship.
If the justice or judge determines that requiring a defendant to appear before the justice or judge in person for a hearing under Article 45A.258 or 45A.259 would impose an undue hardship on the defendant, the justice or judge may allow the defendant to appear by telephone or videoconference.Texas Code of Criminal Procedure Article 45A.260, Appearance by Telephone or Videoconference ↗
Published courtroom rules
Shared court rules
Texas Rule of Civil Procedure 500.9, Appearances at Court Proceedings
Dallas County Justice Court, Precinct 2 Place 1
Scope is limited to the court class in the source claim. Shared court context only; case-type restrictions, exceptions, later amendments and case orders apply. This is not a personal preference or a complete rules inventory.
Official source ↗ · Collected 2026-07-26Texas Code of Criminal Procedure Article 45A.260, Appearance by Telephone or Videoconference
Dallas County Justice Court, Precinct 2 Place 1
Scope is limited to the court class in the source claim. Shared court context only; case-type restrictions, exceptions, later amendments and case orders apply. This is not a personal preference or a complete rules inventory.
Official source ↗ · Collected 2026-07-26Texas Code of Criminal Procedure Article 45A.260, Appearance by Telephone or Videoconference
Dallas County Justice Court, Precinct 2 Place 1
Scope is limited to the court class in the source claim. Shared court context only; case-type restrictions, exceptions, later amendments and case orders apply. This is not a personal preference or a complete rules inventory.
Official source ↗ · Collected 2026-07-26Sources
Identity source checked July 26, 2026.
Biography sources checked October 10, 2026.
Texas Office of Court Administration official judicial roster
Identity source · HTML · Source checked July 26, 2026
View Texas Office of Court Administration official judicial roster ↗Texas Rule of Civil Procedure 500.9, Appearances at Court Proceedings
Statewide source · PDF · Source checked July 26, 2026
View Texas Rule of Civil Procedure 500.9, Appearances at Court Proceedings ↗Texas Code of Criminal Procedure Article 45A.260, Appearance by Telephone or Videoconference
Statewide source · PDF · Source checked July 26, 2026
View Texas Code of Criminal Procedure Article 45A.260, Appearance by Telephone or Videoconference ↗Dallas County Justice Court, Precinct 2 Place 1 official directory
Identity source · HTML · Source checked October 11, 2026
View Dallas County Justice Court, Precinct 2 Place 1 official directory ↗