AttorneyMary Therese Sullivan● 27 total views
MS

Mary Therese Sullivan

The Nacol Law Firm P.C.·Dallas, TX·25 years licensed

Mary Therese Sullivan is a lawyer in Dallas, TX who works for The Nacol Law Firm P.C.. Practice areas include Health Care, Labor-Employment. Court admissions include New York Western District Court, Texas Eastern District Court. Licensed in Texas since 2000. Graduated from State University of New York in 1984.

Claim profileContact attorney
Law school
Class of 1984
Bar admission
2000
State Bar of TX · No. 24026656
Office
8144 Walnut Hill Ln Ste 1190
Dallas, TX 75231
Disciplinary
None on record
Clean since admission
MS

Mary Therese Sullivan

The Nacol Law Firm P.C.
Dallas, TX·25 years licensed
Claim profileContact attorney

Mary Therese Sullivan is a lawyer in Dallas, TX who works for The Nacol Law Firm P.C.. Practice areas include Health Care, Labor-Employment. Court admissions include New York Western District Court, Texas Eastern District Court. Licensed in Texas since 2000. Graduated from State University of New York in 1984.

Law school
Bar admission
2000
State Bar of TX · No. 24026656
Office
8144 Walnut Hill Ln Ste 1190
Dallas, TX 75231
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. Halter Sullivan, PLLCAS OF MAY 2023
    Private Law Practice · Dallas, TX
  2. The Nacol Law Firm P.C.APR 2026 — PRESENT
    Private Law Practice · Dallas, TX
Case data

Case data

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Practice & jurisdiction
Practice areas
  • Health Care
  • Labor-Employment
Courts admitted
  • New York Western District Court
  • Texas Eastern District Court
  • Texas Northern District Court
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Last refreshed Jun 2026