Diane is a shareholder in the firm of Briggs and Morgan, Professional Association. In her more than 20 years of practice, Diane’s primary focus has been handling civil appeals in several federal and state appellate courts, including the Minnesota Court of Appeals, Minnesota Supreme Court, and the U.S. Court of Appeals for the 7th, 8th and 9th Circuits. In 2006, Diane was inducted into the American Academy of Appellate Lawyers as a fellow, a prestigious honor in her field. She serves on the Minnesota Supreme Court's Advisory Committee on Rules of Civil Appellate Procedure by Minnesota Supreme Court Chief Justice Eric Magnuson. She also currently serves as president-elect of the Eighth Circuit Bar Association, vice-chair of the Defense Research Institute’s (DRI) Appellate Advocacy Committee, and 8th Circuit editor of Certworthy. In addition, Diane was appointed to the Amicus Curiae Committee of the Minnesota Defense Lawyers Association (MDLA) and DRI.