Herbert Tyner, CEO of Detroit-based real estate developer Hartman & Tyner Inc., whose properties include Hazel Park Raceway, died Thursday at age 84. Tyner received his bachelor’s degree and MBA from Ohio State University and became business partners with Bernie Hartman in 1953 to create their eponymous residential development and management firm. Hartman and Tyner purchased Hazel Park, then a dual Thoroughbred/Standardbred venue, in 1971 for a reported $14,430,000. It was the duo’s first sports-related purchase and was soon followed by nearby Detroit Race Course in 1978 as part of a $13 million deal that also included Hollywood Greyhound Track in Florida. DRC was sold to U.K.-based gambling company Ladbroke in 1985, and Hazel Park was changed into a harness-exclusive venue the same year. Hazel Park switched again to a full-time Thoroughbred venue in 2014. Among its other properties, Hartman & Tyner also owns greyhound racinos in Florida (the former Hollywood) and West Virginia (formerly Tri-State Racetrack), both under the banner of Mardi Gras Casino. The firm also purchased Canterbury Park in Minnesota in partnership with Ladbroke in 1990, but the track was sold in 1993. Outside of racing, Tyner was a minority owner and advisory board member of the NBA’s Detroit Pistons, served as an independent director for Meadowbrook Insurance, and was a member of the Apartment Association of Michigan and Building Industry Association. He also served on the board of trustees of Beaumont Hospital in Royal Oak, Mich. Tyner is survived by his wife, Suzanne Tyner; daughters Deborah, Cynthia, and Karen; son, David; sister, Paula; and eight grandchildren. Funeral services were held Sunday at Temple Israel in Southfield, Mich. – additional reporting by Jim Dunleavy