About Rosemarie

Rosemarie Costello brings over two decades of real estate expertise to Florida’s Emerald Coast. A proud native of New York, she spent 23 years helping clients navigate the competitive New York market before relocating to Florida in 2021. After earning her Florida Sales Agent license, she joined Coldwell Banker Realty in Fort Walton Beach in 2022, where she continues to serve buyers and sellers with integrity, dedication, and heart. Rosemarie is a devoted mother of two and a proud new grandmother to a beautiful grandson. Her deep faith as a devout Christian and her love for family guide everything she does. She embraces her Florida lifestyle with joy, bringing warmth, professionalism, and a personal touch to every real estate transaction. Whether you're relocating, investing, or finding your forever home, Rosemarie is committed to making your journey seamless and rewarding.