Mariani Enterprises, Inc.
John Kerstein has over 35 years of experience in business development and investment advisory roles. John currently serves as the VP Business Development Northern Territory at Mariani Landscape, where John excels at identifying potential clients and resolving disputes in a mutually satisfactory manner. Prior to this, John worked as an Investment Advisor at KER and as the Director Of Business Development at International Futures and Options. John holds a degree from Oklahoma State University.