Ann Thornton Field Headshot

Ann Thornton Field, Esq


Ann Thornton Field is a Member of the 550-attorney law firm of Cozen O’Connor. She is a member of the Management Committee and a member of the Board of Directors. Ann’s practice is focused on litigation, aviation, and products liability matters. She has been lead counsel for numerous matters in state and federal courts throughout the United States. She has been involved with the defense of death claims arising from the bombing and crash of PanAm Flight 103 in Lockerbie, Scotland, the defense of claims arising from the U.S. Navy experimental V-22 Osprey Tilt Rotor Aircraft, the 1996 ValuJet accident, and the 1996 TWA 800 accident.

Ann’s litigation practice includes representation of corporations in contract litigation both as plaintiff and defense counsel. Ann’s aviation practice has covered the full scope of the aviation industry, including aviation insurers, aircraft and component part manufacturers, fixed base operators, airlines, municipal airport owners and operators, industrial aircraft owners and the estates of persons injured in aircraft accidents.

Ann is admitted to practice before the Third Circuit Court of Appeals, the Eleventh Circuit Court of Appeals, the Eastern and Middle Districts of Pennsylvania, the Middle District of Georgia, the Commonwealth of Pennsylvania, and the State of Georgia. She is a member of the aviation litigation committee of the litigation section of the American Bar Association; the aviation & space law committee of tort insurance practice section of the American Bar Association, of which she is a vice chair; the aviation section of the Pennsylvania Bar Association and the Philadelphia Bar Association’s section on aviation, of which she is former chair. Ann is active in bar association groups in leadership roles and is Chair of the Board of Visitors for the National Judicial College. She is Chair of the Board of the Girl Scouts of Eastern Pennsylvania, a 40,000-girl council. Ann is a former board member of the Arts & Business Council of the Philadelphia Chamber of Commerce and a former board member of the Literacy Action Project.

Ann received her undergraduate degree, cum laude, from Samford University in 1977 and earned her law degree from the University of Houston Law Center in 1984.

Ann was named one of 25 Women on the Verge by the Legal Intelligencer/PA Law Weekly, a Pennsylvania Super Lawyer by Law & Politics and a Woman of Distinction by the Philadelphia Business Journal and the National Association of Women Business Owners