Margaret H Warner

Practice Areas

Partner 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.

Peg is recognized as a leading national trial lawyer in a number of highly regarded legal directories and industry publications. She has been described as “an intimidating figure” “knowledgeable, assertive and in tune with clients’ needs.” She “excels at complex litigation and arbitration” and “has a reputation for being a hard-nosed, no nonsense and smart litigator.”

She has counseled numerous senior executives and boards of insurance entities on an array of business opportunities and exposures.

View more at: https://www.mwe.com/people/warner-margaret-h/

Personal

Education:

University of Notre Dame, JD, 1981

St. Lawrence University, BA, cum laude, 1978

Work Highlights

Lead trial counsel for defendant fiduciaries in eight day ERISA class action bench trial. Obtained rulings denying all injunctive relief and 97% of damages sought. Full affirmance in Tenth Circuit

Lead trial counsel for defendant healthcare system defeating governmental effort to enjoin hospital closure; representation of healthcare systems in contractual and regulatory disputes nationwide

Lead trial counsel for plaintiff trade association in a two-week federal jury trial involving a nationwide retirement program for municipal workers. Verdict returned for client on all counts. Summary affirmance in DC Circuit