In the mid 1960's, while in the military, he was recruited to become a deep cover black ops contractor for a clandestine government agency.

While he was serving his country in the secretive world of Black Ops over 30 years, he operated several "cover" businesses including a classic car brokerage, promotions and limousine companies, and a detective agency. After leaving his career in black ops, Leo continued several of his cover businesses, and also had the opportunity to try his hand at acting in independent films and TV commercials.

In his most recent project, Leo began writing, reliving many of his Black Ops experiences and evolving them into his books. In 2011 he signed a contract with Kensington Publishing Corp for the Dan Morgan thriller series.  Leo is currently in contract talks to have the Dan Morgan Thriller novels brought to Cable TV.