Atty. Mark A. Miller

Atty. Mark A. Miller

Mark A. Miller focuses his practice on highly complex litigation and has defended corporate clients in serial mass tort and class action litigation, including both state and federal multidistrict litigation.

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Profile Summary

About Mark A. Miller at a glance

Mark A. Miller is a Partner based in Washington, District of Columbia, practicing at Hollingsworth LLP. Their practice focuses on personal injury, product liability, litigation, and environmental. Educated at Cleveland-Marshall College of Law (J.D., 1999) and Youngstown State University (B.S., 1993). Serands clients in Washington, DC and the surrounding metropolitan area.

Verified attorney profile · Updated June 2026

About

  • Mark A. Miller focuses his practice on highly complex litigation and has defended corporate clients in serial mass tort and class action litigation, including both state and federal multidistrict litigation
  • He has significant pretrial and trial experience that typically includes developing and managing the defense of mass toxic tort and products liability cases, analyzing ongoing litigation, coordinating the work of local counsel, selecting and preparing expert witnesses, deposing fact and expert witnesses, and drafting and arguing motions
  • He also litigates parallel tort actions seeking personal injury, property damage, and/or medical monitoring damages
  • He has successfully defended such cases whether filed individually, as part of a mass tort, or as a class action
  • In the environmental context, Mr. Miller has successfully defended clients in mass toxic tort cases in state and federal courts in which the plaintiffs alleged personal injuries and property damages from exposures to chemicals including PCBs, dioxins, nuclear by-products, lead, arsenic, and TCE
  • He has experience litigating natural resource damages claims brought by trustees relating to historical operations at our clients’ facilities, often dating back more than 100 years
  • He is also experienced in advising our clients, in conjunction with regulatory counsel, to find pre-litigation solutions to complex NRD issues, and working with teams of experts to assess potential impacts to natural resources and the services provided by those resources
  • Mr. Miller successfully represented a Fortune 500 public utility in a CERCLA cost recovery mediation against the United States in a “war plants” case
  • He has represented an aluminum manufacturer in a remediation cost-recovery action, defended a power plant in a citizen suit alleging violations of the PSD and NNSR provisions of the Clean Air Act, represented a pesticide manufacturer in litigation related to a cancellation proceeding under FIFRA, and represented a Fortune 500 chemical manufacturer in a NEPA case concerning genetically-modified alfalfa
  • Mr. Miller has also advised large chemical companies, manufacturers, public utilities, and other corporations on litigation risk assessment and compliance with statutory and regulatory schemes including CERCLA, the PSD and NNSR provisions of the Clean Air Act, FIFRA, and NEPA
  • Mr. Miller’s products liability experience includes successfully defending a Fortune 500 automobile parts manufacturer in a federal consumer class action alleging defective product design, false advertising, and consumer fraud by defeating class certification through a preemptive motion to strike the class allegations and obtaining summary judgment on all counts
  • In addition, he has defended large corporations in the context of serial and multidistrict litigation against personal injury allegations stemming from the use of prescription pharmaceuticals
  • Mr. Miller has been heavily involved in some of the Firm’s most notable recent cases
  • In 2014, he was part of a trial team that successfully tried a case on remand from one of the most active federal MDLs for a large pharmaceutical company, achieving the first defense verdict in Florida after the jury deliberated for less than 45 minutes following a three week trial
  • In that same litigation, he has also obtained summary judgment on various grounds including adequacy of the drug’s warning, secured Daubert rulings excluding plaintiffs’ expert testimony, and won a motion to preclude punitive damages under preemption principles
  • Mr. Miller’s expertise extends to white collar matters
  • He has represented corporate clients undertaking internal audits and investigations to determine compliance with federal securities and health care laws, and he has represented clients confronted with ongoing government investigations and subpoenas from federal entities such as the Securities and Exchange Commission and the Department of Justice
  • He also has experience with insurance coverage matters, having litigated claims on behalf of policy holders in several property damage and business interruption cases arising from Hurricane Katrina
  • Following law school, Mr. Miller clerked from 1999 to 2001 for the Honorable Thomas J. Moyer, Chief Justice of the Ohio Supreme Court
  • Mr. Miller is an active member of the District of Columbia Bar Association and the Defense Research Institute
  • Publications Inconsistent Gatekeeping Undercuts the Continuing Promise of Daubert Authored by Joe Hollingsworth and Mark Miller for Washington Legal Foundation's Critical Legal Issues Working Paper Series and highlighted in the WLF 2019 Annual Report
  • Passing the Buck: Recent Developments in CERCLA Contribution Actions Seeking Natural Resource Damages By Frank Leone and Mark Miller for Bloomberg BNA publications, Toxics Law Reporter and Daily Environment Report “Hydraulic Fracturing: New Science and New Developments In Environmental & Toxics Litigation” By Hollingsworth LLP attorneys Frank Leone and Mark Miller for Bloomberg BNA. "Acts of God, War, and Third Parties: The Previously Overlooked CERCLA Defenses" A federal appeals court for the first time relies on the statutory act of war defense to dismiss a CERCLA claim arising out of the September 11 terrorist attacks
  • Frank Leone and Mark Miller for Environmental Law Institute. “What’s Past Is Prologue: Statutes of Repose in Post-Waldburger Environmental Contamination Cases” Frank Leone and Mark Miller for BNA’s Environment Reporter A Defense Perspective on Excluding Corporate Conduct Experts in Product Liability Litigation by Frank Leone and Mark Miller (BNA's Toxics Law Reporter, May 19, 2011)

Practice Areas Explained

Mark A. Miller's Areas of Practice

Each practice area below reflects the types of cases Mark A. Miller 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 A. Miller is one of 264,852 personal injury attorneys indexed nationally. Browse personal injury attorneys in District of Columbia →

Product Liability

Mark A. Miller is one of 66,193 product liability attorneys indexed nationally. Browse product liability attorneys in District of Columbia →

Civil Litigation

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

Mark A. Miller 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 A. Miller is one of 56,434 environmental attorneys indexed nationally. Browse environmental 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 A. Miller

Where is Mark A. Miller's law office located?
Mark A. Miller's law practice is located in Washington, District of Columbia. The firm is Hollingsworth LLP. You can contact the office directly through this profile page.
What practice areas does Mark A. Miller handle?
Mark A. Miller focuses on personal injury, product liability, litigation, environmental. Each practice area listed reflects experience handling cases of that type in District of Columbia.
Where did Mark A. Miller go to law school?
Mark A. Miller earned their education at (J.D., 1999); (B.S., 1993).
How can I contact Mark A. Miller for a consultation?
You can contact Mark A. Miller 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.
Cleveland-Marshall College of Law
- 1999
B.S.
Youngstown State University
- 1993

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