Mark Sullivan

Meet Mark—a lifelong Rhode Islander with deep roots in Barrington and over 25 years of experience helping people through sales and service. Before joining Chart House Realtors, he spent nearly a decade running his own business, where his love for real estate truly began to take shape. That passion made his move into real estate feel like a natural next step.

Mark brings a wealth of knowledge to the table, not just about buying and selling homes, but about what makes each Rhode Island community special. From coastal villages and bustling city streets to quiet suburbs and wide-open farmland, he knows the unique character of every corner of the state—and he enjoys helping his clients find the place that feels just right for them. His goal is simple: to make the process as smooth, stress-free, and even enjoyable as possible.

When he’s not working with clients, you’ll likely find Mark outdoors—whether it’s teeing off on the golf course, skiing fresh trails, or soaking up the sun at the beach. He’s also an avid explorer of Rhode Island’s hidden gems, often with his loyal Mini Aussie, Riley, trotting along by his side.