Atty. Mark T Gannon

Atty. Mark T Gannon

Mark T Gannon is a lawyer practicing environmental / natural resources, internet, litigation and 1 other area of law. Mark received a B.A. degree from University of Pennsylvania in 2003, and .

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Profile Summary

About Mark T Gannon at a glance

Mark T Gannon is an Associate based in Washington, District of Columbia, practicing at King And Spalding Llp. Their practice focuses on personal injury, litigation, environmental, and internet. Educated at University of Virginia (J.D., 2009) and University of Pennsylvania (B.A., 2003). Serands clients in Washington, DC and the surrounding metropolitan area.

Verified attorney profile · Updated June 2026

About

  • Mark T Gannon is a lawyer practicing environmental / natural resources, internet, litigation and 1 other area of law
  • Mark received a B.A. degree from University of Pennsylvania in 2003, and
  • Mark practices at King & Spalding LLP in Washington, DC

Practice Areas Explained

Mark T Gannon's Areas of Practice

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

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.

Mark T Gannon is one of 264,852 personal injury attorneys indexed nationally. Browse personal injury attorneys in District of Columbia →

Civil Litigation

Civil litigation attorneys for breach of contract, business disputes, civil rights, and class action lawsuits.

Mark T Gannon is one of 454,532 litigation attorneys indexed nationally. Browse litigation attorneys in District of Columbia →

Environmental Law

Environmental attorneys for regulatory compliance, contamination, land use, and natural resource law.

Mark T Gannon is one of 56,434 environmental attorneys indexed nationally. Browse environmental attorneys in District of Columbia →

Internet & Cyber Law

Internet and cyber lawyers for data breaches, online defamation, privacy law, and cybersecurity matters.

Mark T Gannon is one of 17,958 internet attorneys indexed nationally. Browse internet 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 Mark T Gannon

Where is Mark T Gannon's law office located?
Mark T Gannon's law practice is located in Washington, District of Columbia. The firm is King And Spalding Llp. You can contact the office directly through this profile page.
What practice areas does Mark T Gannon handle?
Mark T Gannon focuses on personal injury, litigation, environmental, internet. Each practice area listed reflects experience handling cases of that type in District of Columbia.
Where did Mark T Gannon go to law school?
Mark T Gannon earned their education at (J.D., 2009); (B.A., 2003).
How can I contact Mark T Gannon for a consultation?
You can contact Mark T Gannon 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
- 2009
B.A.
University of Pennsylvania
- 2003

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