Atty. Mark Duvall Thomas

Atty. Mark Duvall Thomas

Mark Duvall Thomas is a lawyer practicing business law, civil litigation, employment law and 4 other areas of law. Mark received a M.A.T. degree from Brown University in 1981, and has been licensed for 39 years.

Harrisburg Harrisburg 39 yrs experience 39 year
Call (272) 207-3961 Book Appointment

Profile Summary

About Mark Duvall Thomas at a glance

Mark Duvall Thomas is an Assoc. Dist. J. based in Harrisburg, Pennsylvania. They have 39+ years of legal experience, licensed to practice since 1987. Their practice focuses on employment, business, litigation, and energy. Admitted to practice in Maryland (1987) and Pennsylvania (inactive) (1987). Educated at Indiana University School of Law (J.D., 1986) and Brown University (M.A.T. Eng., 1981). Serands clients in Harrisburg, PA and the surrounding metropolitan area.

Verified attorney profile · Updated June 2026

About

  • Mark Duvall Thomas is a lawyer practicing business law, civil litigation, employment law and 4 other areas of law
  • Mark received a M.A.T. degree from Brown University in 1981, and has been licensed for 39 years
  • Mark practices in Harrisburg, PA

Practice Areas Explained

Mark Duvall Thomas's Areas of Practice

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

Employment Law

Employment lawyers represent workers in wrongful termination, discrimination, harassment, wage & hour disputes, and severance negotiations.

Mark Duvall Thomas is one of 169,120 employment attorneys indexed nationally. Browse employment attorneys in Pennsylvania →

Business & Corporate Law

Business attorneys advise founders and growing companies on entity formation, contracts, financing, M&A, and dispute resolution.

Mark Duvall Thomas is one of 501,317 business attorneys indexed nationally. Browse business attorneys in Pennsylvania →

Civil Litigation

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

Mark Duvall Thomas is one of 454,532 litigation attorneys indexed nationally. Browse litigation attorneys in Pennsylvania →

Energy & Utilities Law

Energy attorneys for oil & gas, renewables, utility regulation, and energy sector transactions.

Mark Duvall Thomas is one of 36,230 energy attorneys indexed nationally. Browse energy attorneys in Pennsylvania →

Jurisdictional Context

Why local counsel matters in Pennsylvania

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

Looking for additional Pennsylvania attorneys? Browse all attorneys in Harrisburg or all attorneys in Pennsylvania.

Frequently Asked

Common questions about Mark Duvall Thomas

Where is Mark Duvall Thomas's law office located?
Mark Duvall Thomas's law practice is located in Harrisburg, Pennsylvania. You can contact the office directly through this profile page.
What practice areas does Mark Duvall Thomas handle?
Mark Duvall Thomas focuses on employment, business, litigation, energy. Each practice area listed reflects experience handling cases of that type in Pennsylvania.
How long has Mark Duvall Thomas practiced law?
Mark Duvall Thomas has 39+ years of legal experience and has been licensed since 1987.
Where did Mark Duvall Thomas go to law school?
Mark Duvall Thomas earned their education at (J.D., 1986); (M.A.T. Eng., 1981).
How can I contact Mark Duvall Thomas for a consultation?
You can contact Mark Duvall Thomas 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.
Indiana University School of Law
- 1986
M.A.T. Eng.
Brown University
- 1981

Bar Admissions

Maryland
Admitted: 1987
Pennsylvania (inactive)
Admitted: 1987

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