Margaret H. "Peg" Warner

Margaret H. "Peg" Warner

Washington, DC recognized lawyers icon Recognized in Best Lawyers since 2008
McDermott Will & Schulte

259 Best Lawyers awards

McDermott Will & Schulte logo

Awarded Practice Areas

Commercial Litigation Insurance Law Litigation - Insurance

Biography

Peg has served as first chair trial and appellate counsel in state and federal courts in over 30 jurisdictions. Her work has spanned antitrust, commercial, class action, environmental, healthcare, insurance, mass tort, product liability and reinsurance disputes. Peg has taken numerous cases to verdict/judgment before juries, judges and arbitration tribunals. Many of her cases have involved high-profile public policy issues from the Agent Orange litigation in the 1980s, environmental and Superfund litigation involving such notorious sites as Love Canal and the Hudson River in the 1990s, to sexual abuse, 9/11, antitrust, healthcare, ERISA and COVID-19 litigation in the 21st Century.

Read full biography: https://www.mwe.com/people/warner-margaret-h/

McDermott Will & Schulte

259 Best Lawyers awards

McDermott Will & Schulte logo

Overview

  • University of Notre Dame, J.D., graduated 1981
  • University of Notre Dame, J.D., graduated 1981

Client Testimonials

Awards & Focus

Recognized in The Best Lawyers in America® 2026 for work in:
  • Commercial Litigation
  • Insurance Law
  • Litigation - Insurance
Additional Areas of Practice:
  • Litigation - Environmental

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