Meet Fiona Coxe McMahon

Fiona McMahon is a real estate agent with Donnelly + Co., helping buyers and sellers navigate Charlestown and the Greater Boston market with thoughtful advice, local insight, and a personal approach.

Before entering real estate, Fiona spent nearly 20 years in client-facing roles and corporate program management, working with Fortune 500 companies. That experience shaped the skills she brings to every move: listening carefully, managing complex timelines, anticipating challenges, and keeping people informed from start to finish.

Fiona believes a successful real estate experience starts with understanding the person behind the move. She takes the time to learn what matters to each client. Their goals, concerns, and timing are all considered when developing a strategy around those priorities. Her approach combines careful preparation and neighborhood-level market analysis with honest conversations and steady guidance.

With a particular focus on Charlestown and Boston’s surrounding neighborhoods, Fiona enjoys helping clients understand both the numbers and the character of a place. Through her market insights, practical buyer and seller education, and neighborhood storytelling, she makes the process more approachable and helps clients make confident, informed decisions.

Whether you’re buying your first home, selling a longtime property, or planning your next chapter, Fiona offers attentive service and a clear commitment to your goals.

Your Goals. Your Timeline. Your Move.