Atty. William Cullen McMahon

Atty. William Cullen McMahon

William Cullen McMahon is a lawyer practicing personal injury, accidents, aids litigation and 11 other areas of law. William received a B.B.A. degree from University of Texas at Austin in 2002, and has been licensed for 20 years.

Dallas Dallas 20 yrs experience 20 year
Call (469) 983-2213 Book Appointment

Profile Summary

About William Cullen McMahon at a glance

William Cullen McMahon is a car accidents, personal injury, business, pedestrian, and tbi/sci attorney based in Dallas, Texas. They have 20+ years of legal experience, licensed to practice since 2006. Admitted to practice in Oklahoma Texas Southern District/Bankruptcy Court (2006) and Texas Oklahoma Eastern District Court Oklahoma Northern District Court Oklahoma Western District Cou (2011). Educated at Oklahoma City University (J.D., 2005) and University of Texas at Austin (B.B.A., 2002). Serands clients in Dallas, TX and the surrounding metropolitan area.

Verified attorney profile · Updated June 2026

About

  • William Cullen McMahon is a lawyer practicing personal injury, accidents, aids litigation and 11 other areas of law
  • William received a B.B.A. degree from University of Texas at Austin in 2002, and has been licensed for 20 years
  • William practices in Dallas, TX

Practice Areas Explained

William Cullen McMahon's Areas of Practice

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

Car Accidents

Hurt in a car crash? Car accident lawyers fight insurance companies for fair compensation — free consult, no fee unless you win.

William Cullen McMahon is one of 36,807 car accidents attorneys indexed nationally. Browse car accidents attorneys in Texas →

Personal Injury

Personal injury attorneys help accident victims recover compensation for medical bills, lost wages, and pain & suffering. Most work on contingency — no fee unless you win.

William Cullen McMahon is one of 264,852 personal injury attorneys indexed nationally. Browse personal injury attorneys in Texas →

Business & Corporate Law

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

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

Pedestrian & Bicycle Accidents

William Cullen McMahon is one of 4,194 pedestrian attorneys indexed nationally. Browse pedestrian attorneys in Texas →

Brain & Spinal Cord Injury

William Cullen McMahon is one of 10,267 tbi/sci attorneys indexed nationally. Browse tbi/sci 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 Dallas 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 Dallas or all attorneys in Texas.

Frequently Asked

Common questions about William Cullen McMahon

Where is William Cullen McMahon's law office located?
William Cullen McMahon's law practice is located in Dallas, Texas. You can contact the office directly through this profile page.
What practice areas does William Cullen McMahon handle?
William Cullen McMahon focuses on car accidents, personal injury, business, pedestrian, tbi/sci. Each practice area listed reflects experience handling cases of that type in Texas.
How long has William Cullen McMahon practiced law?
William Cullen McMahon has 20+ years of legal experience and has been licensed since 2006.
Where did William Cullen McMahon go to law school?
William Cullen McMahon earned their education at (J.D., 2005); (B.B.A., 2002).
How can I contact William Cullen McMahon for a consultation?
You can contact William Cullen McMahon 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.

Education

J.D.
Oklahoma City University
- 2005
B.B.A.
University of Texas at Austin
- 2002

Bar Admissions

Oklahoma Texas Southern District/Bankruptcy Court
Admitted: 2006
Texas Oklahoma Eastern District Court Oklahoma Northern District Court Oklahoma Western District Cou
Admitted: 2011

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