Atty. Daniel Lee O'Neil

Atty. Daniel Lee O'Neil

Mr. Daniel Lee O'Neil is a lawyer practicing adr, appellate: civil, business and 11 other areas of law.

Houston Houston 16 yrs experience 16 year
Call (346) 327-1904 Book Appointment

Profile Summary

About Daniel Lee O'Neil at a glance

Daniel Lee O'Neil is an Attorney based in Houston, Texas, practicing at Thompson, Coe, Cousins & Irons, LLP. They have 16+ years of legal experience, licensed to practice since 2010. Their practice focuses on trusts, probate, personal injury, criminal defense, and family law. Admitted to practice in Texas Fifth Circuit Court of Appeals Texas Northern District Court Texas Southern District/Bankruptc (2010). Educated at South Texas College of Law (J.D. University, 2010). Serands clients in Houston, TX and the surrounding metropolitan area.

Verified attorney profile · Updated June 2026

About

  • Mr. Daniel Lee O'Neil is a lawyer practicing adr, appellate: civil, business and 11 other areas of law
  • Daniel has been licensed for 16 years
  • Daniel practices at Thompson, Coe, Cousins & Irons, LLP in Houston, TX

Practice Areas Explained

Daniel Lee O'Neil's Areas of Practice

Each practice area below reflects the types of cases Daniel Lee O'Neil handles, with a brief overview of what that area of law covers.

Trusts

Daniel Lee O'Neil is one of 104,171 trusts attorneys indexed nationally. Browse trusts attorneys in Texas →

Probate

Daniel Lee O'Neil is one of 128,014 probate attorneys indexed nationally. Browse probate 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.

Daniel Lee O'Neil is one of 264,852 personal injury attorneys indexed nationally. Browse personal injury attorneys in Texas →

Criminal Defense

A criminal defense attorney protects your rights from arrest through trial. Find experienced lawyers handling DUI, drug, federal, theft, and violent-crime charges.

Daniel Lee O'Neil is one of 214,270 criminal defense attorneys indexed nationally. Browse criminal defense attorneys in Texas →

Family Law

Family law attorneys handle divorce, child custody, child support, adoption, prenups, and protective orders. Find verified family lawyers near you.

Daniel Lee O'Neil is one of 187,066 family law attorneys indexed nationally. Browse family law 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 Houston 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 Houston or all attorneys in Texas.

Frequently Asked

Common questions about Daniel Lee O'Neil

Where is Daniel Lee O'Neil's law office located?
Daniel Lee O'Neil's law practice is located in Houston, Texas. The firm is Thompson, Coe, Cousins & Irons, LLP. You can contact the office directly through this profile page.
What practice areas does Daniel Lee O'Neil handle?
Daniel Lee O'Neil focuses on trusts, probate, personal injury, criminal defense, family law. Each practice area listed reflects experience handling cases of that type in Texas.
How long has Daniel Lee O'Neil practiced law?
Daniel Lee O'Neil has 16+ years of legal experience and has been licensed since 2010.
Where did Daniel Lee O'Neil go to law school?
Daniel Lee O'Neil earned their education at (J.D. University, 2010).
How can I contact Daniel Lee O'Neil for a consultation?
You can contact Daniel Lee O'Neil 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. University
South Texas College of Law
- 2010

Bar Admissions

Texas Fifth Circuit Court of Appeals Texas Northern District Court Texas Southern District/Bankruptc
Admitted: 2010

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