Founded 17 years ago (2007) and named in honor of our late fathers, William Marcus Runnebaum, Sr. & David Boyd Mangham, Jr. Marcus-Boyd Realty is a full-service, independent real estate brokerage that is committed to offering our clients only the highest quality products, while our dedicated team of professionals remains consistent in providing a superior level of service and market expertise. Offices in Maryland & Delaware.
William M. Runnebaum & William H. Mangham
"Will & Bill"