Northern-California based real estate development and related services firm, Orton Development Inc., expanded its operation into Southern California with the opening of an office in Irvine. Additionally, the company welcomed Gregg A. Herbert as principal and CEO. With 21 years of experience in the commercial real estate industry and a previous senior vice president of Grubb & Ellis' Newport Beach office, Herbert's primary responsibilities include the management of the company's new developments, as well as providing direction for the company's expansion into nationwide venues.