As Delaware's oldest and largest independent real estate brokerage, Patterson-Schwartz has earned an outstanding reputation as this area's leading full-service real estate firm. Patterson-Schwartz Real Estate is an organization of people committed to excellence, integrity, and quality service. With nine offices and more than 400 Sales Associates and staff, Patterson-Schwartz consistently ranks as the market share leader in New Castle County, Delaware and is among the top real estate companies in the surrounding areas of Kent and Sussex Counties, Delaware; southern Chester County, Pennsylvania and Cecil County, Maryland.