Atty. Gregory Roberts Hallmark

Atty. Gregory Roberts Hallmark

Mr. Gregory Roberts Hallmark is a lawyer practicing litigation, government contracts, false claims act defense and 1 other area of law.

Tysons Tysons 20 yrs experience 20 year
Call (571) 341-9873 Book Appointment

Profile Summary

About Gregory Roberts Hallmark at a glance

Gregory Roberts Hallmark is an Associate based in Tysons, Virginia, practicing at Holland & Knight LLP. They have 20+ years of legal experience, licensed to practice since 2006. Their practice focuses on whistleblower, litigation, and government. Admitted to practice in Virginia (2006) and District of Columbia (2007). Educated at University of Texas School of Law (J.D., 2006) and University of Virginia (B.A. Government, 2002). Serands clients in Tysons, VA and the surrounding metropolitan area.

Verified attorney profile · Updated June 2026

About

  • Mr. Gregory Roberts Hallmark is a lawyer practicing litigation, government contracts, false claims act defense and 1 other area of law
  • Gregory received a B.A. degree from University of Virginia in 2002, and has been licensed for 20 years
  • Gregory practices at Holland & Knight LLP in Tysons, VA

Practice Areas Explained

Gregory Roberts Hallmark's Areas of Practice

Each practice area below reflects the types of cases Gregory Roberts Hallmark handles, with a brief overview of what that area of law covers.

Whistleblower & Retaliation

Gregory Roberts Hallmark is one of 3,552 whistleblower attorneys indexed nationally. Browse whistleblower attorneys in Virginia →

Civil Litigation

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

Gregory Roberts Hallmark is one of 454,532 litigation attorneys indexed nationally. Browse litigation attorneys in Virginia →

Government & Administrative Law

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

Gregory Roberts Hallmark is one of 132,225 government attorneys indexed nationally. Browse government attorneys in Virginia →

Jurisdictional Context

Why local counsel matters in Virginia

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

Looking for additional Virginia attorneys? Browse all attorneys in Tysons or all attorneys in Virginia.

Frequently Asked

Common questions about Gregory Roberts Hallmark

Where is Gregory Roberts Hallmark's law office located?
Gregory Roberts Hallmark's law practice is located in Tysons, Virginia. The firm is Holland & Knight LLP. You can contact the office directly through this profile page.
What practice areas does Gregory Roberts Hallmark handle?
Gregory Roberts Hallmark focuses on whistleblower, litigation, government. Each practice area listed reflects experience handling cases of that type in Virginia.
How long has Gregory Roberts Hallmark practiced law?
Gregory Roberts Hallmark has 20+ years of legal experience and has been licensed since 2006.
Where did Gregory Roberts Hallmark go to law school?
Gregory Roberts Hallmark earned their education at (J.D., 2006); (B.A. Government, 2002).
How can I contact Gregory Roberts Hallmark for a consultation?
You can contact Gregory Roberts Hallmark 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 Texas School of Law
- 2006
B.A. Government
University of Virginia
- 2002

Bar Admissions

Virginia
Admitted: 2006
District of Columbia
Admitted: 2007

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