Atty. Mark D. Winnubst

Atty. Mark D. Winnubst

Mr. Mark D.

Richardson Richardson 37 yrs experience 37 year
Call (737) 881-3371 Book Appointment

Profile Summary

About Mark D. Winnubst at a glance

Mark D. Winnubst is a Member based in Richardson, Texas, practicing at Sheils Winnubst, P.C.. They have 37+ years of legal experience, licensed to practice since 1989. Their practice focuses on trusts, probate, family law, estate planning, and business. Admitted to practice in Texas (1989), U.S. District Court, Northern District of Texas Texas Southern District/Bankruptcy Court (1990), U.S. District Court, Eastern District of Texas (1991), and U.S. Court of Appeals, Fifth Circuit (1992). Educated at University of Notre Dame (J.D., 1989) and University of Notre Dame (B.A., 1985). Recognitions include BV Distinguished. Active member of Dallas and Collin County Bar Associations State Bar of Texas. Serands clients in Richardson, TX and the surrounding metropolitan area.

Verified attorney profile · Updated June 2026

About

  • Mr. Mark D. Winnubst is a lawyer practicing administrative, alternative dispute resolution, appellate: civil and 18 other areas of law
  • Mark received a B.A. degree from University of Notre Dame in 1985, and has been licensed for 37 years
  • Mark practices at Sheils Winnubst, P.C. in Richardson, TX

Practice Areas Explained

Mark D. Winnubst's Areas of Practice

Each practice area below reflects the types of cases Mark D. Winnubst handles, with a brief overview of what that area of law covers.

Trusts

Mark D. Winnubst is one of 104,172 trusts attorneys indexed nationally. Browse trusts attorneys in Texas →

Probate

Mark D. Winnubst is one of 128,014 probate attorneys indexed nationally. Browse probate 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.

Mark D. Winnubst is one of 187,066 family law attorneys indexed nationally. Browse family law attorneys in Texas →

Estate Planning & Probate

An estate planning attorney prepares wills, trusts, powers of attorney, and healthcare directives to protect your family and pass on your assets.

Mark D. Winnubst is one of 226,537 estate planning attorneys indexed nationally. Browse estate planning attorneys in Texas →

Business & Corporate Law

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

Mark D. Winnubst is one of 501,317 business attorneys indexed nationally. Browse business 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 Richardson 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 Richardson or all attorneys in Texas.

Frequently Asked

Common questions about Mark D. Winnubst

Where is Mark D. Winnubst's law office located?
Mark D. Winnubst's law practice is located in Richardson, Texas. The firm is Sheils Winnubst, P.C.. You can contact the office directly through this profile page.
What practice areas does Mark D. Winnubst handle?
Mark D. Winnubst focuses on trusts, probate, family law, estate planning, business. Each practice area listed reflects experience handling cases of that type in Texas.
How long has Mark D. Winnubst practiced law?
Mark D. Winnubst has 37+ years of legal experience and has been licensed since 1989.
Where did Mark D. Winnubst go to law school?
Mark D. Winnubst earned their education at (J.D., 1989); (B.A., 1985).
How can I contact Mark D. Winnubst for a consultation?
You can contact Mark D. Winnubst 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 Mark D. Winnubst received?
Mark D. Winnubst's notable recognition includes: BV Distinguished.

Education

J.D.
University of Notre Dame
- 1989
B.A.
University of Notre Dame
- 1985

Awards

BV Distinguished

Bar Admissions

Texas
Admitted: 1989
U.S. District Court, Northern District of Texas Texas Southern District/Bankruptcy Court
Admitted: 1990
U.S. District Court, Eastern District of Texas
Admitted: 1991
U.S. Court of Appeals, Fifth Circuit
Admitted: 1992

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