Margaret H. Warner

In her 37-year career, 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, 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 and antitrust 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.

Peg and her team received The Financial Times 2012 US Innovative Lawyers Award for work resolving 9/11 litigation. She is a member of McDermott’s Management Committee.