Atty. William D. O'Brien

Atty. William D. O'Brien

Mr. William D.

Irving Irving 53 yrs experience 53 year
Call (682) 349-2037 Book Appointment

Profile Summary

About William D. O'Brien at a glance

William D. O'Brien is a tax attorney based in Irving, Texas. They have 53+ years of legal experience, licensed to practice since 1973. Admitted to practice in Texas US Tax Court (1973), Texas US Supreme Court (1974), and New York US Court of Federal Claims (1995). Educated at Columbia University (LL.B. New, 1955) and Villanova University (B.S., 1952). Serands clients in Irving, TX and the surrounding metropolitan area.

Verified attorney profile · Updated June 2026

About

  • Mr. William D. O'Brien is a lawyer practicing taxation
  • William D. received a B.S. degree from Villanova University in 1952, and has been licensed for 53 years
  • William D. practices in Irving, TX

Practice Areas Explained

William D. O'Brien's Areas of Practice

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

Tax Law

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

William D. O'Brien is one of 85,302 tax attorneys indexed nationally. Browse tax 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 Irving 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 Irving or all attorneys in Texas.

Frequently Asked

Common questions about William D. O'Brien

Where is William D. O'Brien's law office located?
William D. O'Brien's law practice is located in Irving, Texas. You can contact the office directly through this profile page.
What practice areas does William D. O'Brien handle?
William D. O'Brien focuses on tax. Each practice area listed reflects experience handling cases of that type in Texas.
How long has William D. O'Brien practiced law?
William D. O'Brien has 53+ years of legal experience and has been licensed since 1973.
Where did William D. O'Brien go to law school?
William D. O'Brien earned their education at (LL.B. New, 1955); (B.S., 1952).
How can I contact William D. O'Brien for a consultation?
You can contact William D. 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.

Practice Areas

Education

LL.B. New
Columbia University
- 1955
B.S.
Villanova University
- 1952

Bar Admissions

Texas US Tax Court
Admitted: 1973
Texas US Supreme Court
Admitted: 1974
New York US Court of Federal Claims
Admitted: 1995

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