AttorneyMark Keith O'Briant● 28 total views
MO

Mark Keith O'Briant

Law Office of Mark O'Briant·Dallas, TX·47 years licensed

Mark Keith O'Briant is a lawyer in Dallas, TX who works for Law Office of Mark O'Briant. Practice areas include Real Estate, Wills-Trusts-Probate. Court admissions include Fifth Circuit Court of Appeals, Texas Eastern District Court. Licensed in Texas since 1978. Graduated from University of Texas in 1978.

Claim profileContact attorney
Law school
Class of 1978
Bar admission
1978
State Bar of TX · No. 15165700
Office
15851 Dallas Parkway, Suite 600
Dallas, TX 75001
Disciplinary
None on record
Clean since admission
MO

Mark Keith O'Briant

Law Office of Mark O'Briant
Dallas, TX·47 years licensed
Claim profileContact attorney

Mark Keith O'Briant is a lawyer in Dallas, TX who works for Law Office of Mark O'Briant. Practice areas include Real Estate, Wills-Trusts-Probate. Court admissions include Fifth Circuit Court of Appeals, Texas Eastern District Court. Licensed in Texas since 1978. Graduated from University of Texas in 1978.

Law school
University of Texas
Class of 1978
Bar admission
1978
State Bar of TX · No. 15165700
Office
15851 Dallas Parkway, Suite 600
Dallas, TX 75001
Disciplinary
None on record
Clean since admission
Career history

2 observed firms

Based on State Bar of Texas snapshots — each row is a firm the attorney was registered with at one of our quarterly pulls.

  1. Law Office of Mark O'Briant, P.C.AS OF MAY 2023
    Private Law Practice · Dallas, TX
  2. Law Office of Mark O'BriantAPR 2026 — PRESENT
    Private Law Practice · Dallas, TX
Case data

Case data

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Practice & jurisdiction
Practice areas
  • Real Estate
  • Wills-Trusts-Probate
Courts admitted
  • Fifth Circuit Court of Appeals
  • Texas Eastern District Court
  • Texas Northern Bankruptcy Court
  • Texas Northern District Court
  • US Supreme Court
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Last refreshed Jun 2026