2. Customers appreciate the wealth of knowledge, encouragement, and kindness offered by the staff and realtors at Howard Hanna Real Estate Services. The office culture fosters a supportive environment, making it an awesome place to work at. 6. Unique facts about Howard Hanna Real Estate Services include its founding in 1957 by a family-owned broker, its single office located in Pittsburgh, and the third-generation family members who continue the tradition in the company. 7. Howard Hanna Real Estate Services specializes in providing top-notch real estate services in the Gahanna OH area, with a focus on delivering exceptional customer service, professional photography for listings, and a commitment to making the sale and purchase process as simple and successful as possible for clients.