Atty. William T. Sullivan

Atty. William T. Sullivan

Mr. William T.

San Antonio San Antonio 39 yrs experience 39 year
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Profile Summary

About William T. Sullivan at a glance

William T. Sullivan is a Counsel based in San Antonio, Texas, practicing at Norton Rose Fulbright. They have 39+ years of legal experience, licensed to practice since 1987. Their practice focuses on irs, business, real estate, tax, and estate litigation. Admitted to practice in Texas Texas Southern District/Bankruptcy Court (1987), U.S. District Court, Western District of Texas (1988), U.S. District Court, Southern District of Texas (1990), and U.S. District Court, Northern District of Texas and U.S. Court of Appeals, Fifth Circuit (1990). Educated at St. Mary's University of San Antonio School of Law (J.D., 1987) and St. Mary's University of San Antonio (B.B.A., 1981). Recognitions include AV Preeminent. Active member of San Antonio Bar Association State Bar of Texas San Antonio Bar Foundation Institute for Professionals in Taxation. Serands clients in San Antonio, TX and the surrounding metropolitan area.

Verified attorney profile · Updated June 2026

About

  • Mr. William T. Sullivan is a lawyer practicing alternative energy, energy litigation, environmental and 13 other areas of law
  • William received a B.B.A. degree from St. Mary's University of San Antonio in 1981, and has been licensed for 39 years
  • William practices at Norton Rose Fulbright in San Antonio, TX

Practice Areas Explained

William T. Sullivan's Areas of Practice

Each practice area below reflects the types of cases William T. Sullivan handles, with a brief overview of what that area of law covers.

IRS Disputes & Audits

William T. Sullivan is one of 2,917 irs attorneys indexed nationally. Browse irs attorneys in Texas →

Business & Corporate Law

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

William T. Sullivan is one of 501,317 business attorneys indexed nationally. Browse business attorneys in Texas →

Real Estate Law

Real estate attorneys handle home purchases, sales, commercial transactions, title disputes, and landlord-tenant matters.

William T. Sullivan is one of 316,149 real estate attorneys indexed nationally. Browse real estate attorneys in Texas →

Tax Law

Tax attorneys handle IRS audits, tax debt, international tax, estate planning, and tax court litigation.

William T. Sullivan is one of 85,302 tax attorneys indexed nationally. Browse tax attorneys in Texas →

Estate & Trust Litigation

William T. Sullivan is one of 20,023 estate litigation attorneys indexed nationally. Browse estate litigation 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 San Antonio 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 San Antonio or all attorneys in Texas.

Frequently Asked

Common questions about William T. Sullivan

Where is William T. Sullivan's law office located?
William T. Sullivan's law practice is located in San Antonio, Texas. The firm is Norton Rose Fulbright. You can contact the office directly through this profile page.
What practice areas does William T. Sullivan handle?
William T. Sullivan focuses on irs, business, real estate, tax, estate litigation. Each practice area listed reflects experience handling cases of that type in Texas.
How long has William T. Sullivan practiced law?
William T. Sullivan has 39+ years of legal experience and has been licensed since 1987.
Where did William T. Sullivan go to law school?
William T. Sullivan earned their education at (J.D., 1987); (B.B.A., 1981).
How can I contact William T. Sullivan for a consultation?
You can contact William T. Sullivan 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 William T. Sullivan received?
William T. Sullivan's notable recognition includes: AV Preeminent.

Education

J.D.
St. Mary's University of San Antonio School of Law
- 1987
B.B.A.
St. Mary's University of San Antonio
- 1981

Awards

AV Preeminent

Bar Admissions

Texas Texas Southern District/Bankruptcy Court
Admitted: 1987
U.S. District Court, Western District of Texas
Admitted: 1988
U.S. District Court, Southern District of Texas
Admitted: 1990
U.S. District Court, Northern District of Texas and U.S. Court of Appeals, Fifth Circuit
Admitted: 1990
U.S. Supreme Court
Admitted: 1991

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