Atty. Mark G. Weisshaar

Atty. Mark G. Weisshaar

Mark G. Weisshaar is a lawyer practicing environmental, government contracts.

Washington Washington 48 yrs experience 48 year
Call (771) 244-1984 Book Appointment

Profile Summary

About Mark G. Weisshaar at a glance

Mark G. Weisshaar is a Partner based in Washington, District of Columbia, practicing at Hunton And Williams Llp. They have 48+ years of legal experience, licensed to practice since 1978. Their practice focuses on environmental and government. Admitted to practice in California (1978) and District of Columbia (1980). Educated at George Washington University (J.D., 1977) and Yale University (B.A., 1972). Serands clients in Washington, DC and the surrounding metropolitan area.

Verified attorney profile · Updated June 2026

About

  • Mark G. Weisshaar is a lawyer practicing environmental, government contracts
  • Mark G. received a B.A. degree from Yale University in 1972, and has been licensed for 48 years
  • Mark G. practices at Hunton Andrews Kurth LLP in Washington, DC

Practice Areas Explained

Mark G. Weisshaar's Areas of Practice

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

Environmental Law

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

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

Government & Administrative Law

Attorneys for administrative law, agency hearings, government contracts, licensing, and public benefits.

Mark G. Weisshaar is one of 132,225 government attorneys indexed nationally. Browse government 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 G. Weisshaar

Where is Mark G. Weisshaar's law office located?
Mark G. Weisshaar's law practice is located in Washington, District of Columbia. The firm is Hunton And Williams Llp. You can contact the office directly through this profile page.
What practice areas does Mark G. Weisshaar handle?
Mark G. Weisshaar focuses on environmental, government. Each practice area listed reflects experience handling cases of that type in District of Columbia.
How long has Mark G. Weisshaar practiced law?
Mark G. Weisshaar has 48+ years of legal experience and has been licensed since 1978.
Where did Mark G. Weisshaar go to law school?
Mark G. Weisshaar earned their education at (J.D., 1977); (B.A., 1972).
How can I contact Mark G. Weisshaar for a consultation?
You can contact Mark G. Weisshaar 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.
George Washington University
- 1977
B.A.
Yale University
- 1972

Bar Admissions

California
Admitted: 1978
District of Columbia
Admitted: 1980

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