The Century21 brand is the largest real estate sales organization in the world with over 8400 independently owned and operated locations and 120,000 licensed sales professionals. Any buyer, anywhere in the world, looking for property in the Florida Keys through the largest real estate organization will be directed to Century21 Schwartz Realty. This is absolutely phenomenal! The Century 21 System has come to symbolize not only professional real estate knowledge but a dedication to honesty, integrity and exceptional customer service.