Atty. John William Horne

Atty. John William Horne

John William Horne is a lawyer practicing tax, tax controversy. John received a B.B.A. degree from University of Kentucky, and has been licensed for 15 years.

Washington Washington 15 yrs experience 15 year
Call (443) 909-4791 Book Appointment

Profile Summary

About John William Horne at a glance

John William Horne is an Associate based in Washington, District of Columbia, practicing at Mayer Brown Llp. They have 15+ years of legal experience, licensed to practice since 2011. Their practice focuses on irs and tax. Admitted to practice in Kentucky (2011) and District of Columbia (2013). Educated at University of Kentucky College of Law (J.D., 2011) and University of Kentucky B.B.A. cum laude 2005 University of Kentucky (M.S., 2006). Serands clients in Washington, DC and the surrounding metropolitan area.

Verified attorney profile · Updated June 2026

About

  • John William Horne is a lawyer practicing tax, tax controversy
  • John received a B.B.A. degree from University of Kentucky, and has been licensed for 15 years
  • John practices at Mayer Brown LLP in Washington, DC

Practice Areas Explained

John William Horne's Areas of Practice

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

IRS Disputes & Audits

John William Horne is one of 2,917 irs attorneys indexed nationally. Browse irs attorneys in District of Columbia →

Tax Law

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

John William Horne is one of 85,302 tax attorneys indexed nationally. Browse tax attorneys in District of Columbia →

Jurisdictional Context

Why local counsel matters in District of Columbia

Practicing law in District of Columbia. Legal matters in District of Columbia are governed by state-specific rules of civil and criminal procedure, statutes of limitations, and substantive law. Cases originating in Washington are typically filed in the local municipal court or the appropriate District of Columbia state district court, depending on subject matter and amount in controversy. An attorney licensed in District of Columbia 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 District of Columbia courts without local counsel or pro hac vice admission.

Looking for additional District of Columbia attorneys? Browse all attorneys in Washington or all attorneys in District of Columbia.

Frequently Asked

Common questions about John William Horne

Where is John William Horne's law office located?
John William Horne's law practice is located in Washington, District of Columbia. The firm is Mayer Brown Llp. You can contact the office directly through this profile page.
What practice areas does John William Horne handle?
John William Horne focuses on irs, tax. Each practice area listed reflects experience handling cases of that type in District of Columbia.
How long has John William Horne practiced law?
John William Horne has 15+ years of legal experience and has been licensed since 2011.
Where did John William Horne go to law school?
John William Horne earned their education at (J.D., 2011); (M.S., 2006).
How can I contact John William Horne for a consultation?
You can contact John William Horne 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

J.D.
University of Kentucky College of Law
- 2011
M.S.
University of Kentucky B.B.A. cum laude 2005 University of Kentucky
- 2006

Bar Admissions

Kentucky
Admitted: 2011
District of Columbia
Admitted: 2013

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