Steve Martini was born and raised in the San Francisco Bay area. An honors graduate of the University of California at Santa Cruz, he holds a law degree from the University of the Pacific's McGeorge School of Law.
Martini's first career was in journalism. He worked as a newspaper reporter in Los Angeles and as a correspondent at the California State Capitol in Sacramento, specializing in legal issues. In 1974 he entered private law practice in California, where he appeared in both state and federal courts. During his legal career, he worked as a legislative representative for the State Bar of California, served as special counsel to the California Victims of Violent Crimes Program, and was an administrative law judge and supervising hearing officer.
In 1984 Martini turned his talents to fiction, quickly earning positions on bestseller lists. All but his first book spent time on the New York Times Bestsellers list. To date, he has authored twelve novels, including eight featuring his popular lawyer alter ego, Paul Madriani.
In 1996 Undue Influence aired as a four-hour miniseries on CBS, followed by The Judge on NBC in 2001.