Fleming has been counsel to Latham & Watkins since 1992. A corporate attorney for 50 years, he has represented clients in various areas including banking, real estate, estate and securities practices, bringing to market over $5 billion in securities and commercial paper. Fleming was the president of the board of Fire Commissioners of the City of Los Angeles from 1993-2001. He served on the Los Angeles City Ethics Commission, the Los Angeles County Metropolitan Transit Authority and is a current director of the Southern California Metropolitan Water District. From 1996 to 1999, he was a member and Vice Chairman of the California Transportation Commission, appointed by California Governor Pete Wilson and confirmed by the California State Senate. Fleming was, for 17 years, the chairman of the board of the Economic Alliance of the San Fernando Valley, a Valley-wide organization of business and civic leaders from the cities of Los Angeles, Burbank and Glendale, including 25 Chambers of Commerce. He also served as board chair for the Los Angeles County Economic Development Corporation, chairman of the Los Angeles Area Chamber of Commerce, and served as chairman of Valley Presbyterian Hospital for 25 years. In 2007, he was the founder and first chairman of the Los Angeles County Business Federation (Biz Fed), consisting of 200,000 businesses in Los Angeles County. He is a past chair and current member of the Southern California Leadership Council.