Jack grew up in the suburbs of Chicago and relocated to Sedona in 2013. Not long after arriving, Jack began work for John D. Miller Real Estate Services, Inc. With a degree in Business Marketing from Eastern Illinois University and his sales and finance work background, he blended those skills as a Commercial Specialist for the John D. Miller team.

Jack bought the brokerage in 2019 and rebranded it as McMahon & Miller Commercial Real Estate. Since then he has brokered over $125,000,000 in commercial sales and leasing transactions.

Jack dedicates his time to cultivating long-lasting professional and personal relationships in and outside the Sedona area. He is a reliable, honest, and straightforward professional that keeps your best interest in mind at all times. Most importantly, Jack delivers results for his clients.

When he's not working, Jack spends his time with his wife and three young children.

2025 Platinum Award winner (commercial) - Crexi