Saul's background - and passion - is in historic preservation. He is the owner of the oldest real estate company specializing in South Beach's historic district.

From 1984 to 1987, Saul pioneered the restoration of architecturally significant buildings in the Flamingo Park neighborhood, setting a high standard of quality for which he won many awards. In 1988, Saul completed the first renovation of a block of storefronts on Washington Avenue.

Saul has a long devotion to public service and civic activism. From 1993 to 1998 he served as Chairman of the City of Miami Beach Design Review Board. In January 2001 he was appointed Chairman of the Historic Preservation Board, and from 1999 to 2000 he was Chairman of the Business Resolution Task Force. Saul was first elected to the Miami Beach City Commission in 2001, and he was re-elected in 2005.