Atty. Mark Jonathan Horowitz

Atty. Mark Jonathan Horowitz

Mr. Mark Jonathan Horowitz is a lawyer practicing federal taxation, state taxation, international taxation and 2 other areas of law.

Houston Houston 21 Years Experience 21 year
Call (346) 601-5083

Profile Summary

About Mark Jonathan Horowitz at a glance

Mark Jonathan Horowitz is a tax and international tax attorney based in Houston, Texas. They have 21+ years of legal experience, licensed to practice since 2005. Admitted to practice in Texas US Tax Court US Court of Federal Claims (2005). Educated at University of Virginia (J.D., 2005) and Harvard University (B.A. History, 2002). Serves clients in Houston, TX and the surrounding metropolitan area.

Verified attorney profile · Updated June 2026

About

  • Mr. Mark Jonathan Horowitz is a lawyer practicing federal taxation, state taxation, international taxation and 2 other areas of law
  • Mark received a B.A. degree from Harvard University in 2002, and has been licensed for 21 years
  • Mark practices in Houston, TX

Practice Areas Explained

Mark Jonathan Horowitz's Areas of Practice

Each practice area below reflects the types of cases Mark Jonathan Horowitz 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.

Mark Jonathan Horowitz is one of 77,130 tax attorneys indexed nationally. Browse tax attorneys in Texas →

International Tax

Mark Jonathan Horowitz is one of 1,573 international tax attorneys indexed nationally. Browse international 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 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 venue, 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 Mark Jonathan Horowitz

Where is Mark Jonathan Horowitz's law office located?
Mark Jonathan Horowitz's law practice is located in Houston, Texas. You can contact the office directly through this profile page.
What practice areas does Mark Jonathan Horowitz handle?
Mark Jonathan Horowitz focuses on tax, international tax. Each practice area listed reflects experience handling cases of that type in Texas.
How long has Mark Jonathan Horowitz practiced law?
Mark Jonathan Horowitz has 21+ years of legal experience and has been licensed since 2005.
Where did Mark Jonathan Horowitz go to law school?
Mark Jonathan Horowitz earned their education at (J.D., 2005); (B.A. History, 2002).
How can I contact Mark Jonathan Horowitz for a consultation?
You can contact Mark Jonathan Horowitz 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 of Virginia
- 2005
B.A. History
Harvard University
- 2002

Bar Admissions

Texas US Tax Court US Court of Federal Claims
Admitted: 2005

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