Gregory M. Lederer is a founding member of Lederer Weston Craig PLC. He practices in the areas of civil litigation, including commercial and personal injury litigation. He has worked throughout his career on pharma litigation, product liability litigation and the defense of lawyers sued for malpractice. He has tried more than 80 cases to verdict or judgment.

Lederer was admitted to the Iowa Bar in 1977. He served as a law clerk for Iowa Supreme Court Justice M. E. Rawlings and then for Chief Justice W. W. Reynoldson before beginning his career in private practice in Cedar Rapids.

Lederer is a Fellow of the American College of Trial Lawyers (served as State Chair from 2014-2016), a member of Lawyers for Civil Justice (served as President from 2008-2009), a member of the International Association of Defense Counsel (served as President from 2005-2006), a member of DRI (served on its board from 2001-2007) and a member of the Iowa Defense Counsel Association (served as President from 1995-1996). He also served as Chair of the Magistrate Judge Merit Selection Panel for the Northern District of Iowa in 1995, 1996, 2003, 2006 and 2016.