Our Associates are among the best in the business. With a depth of expertise and competence not commonly found in residential brokerage, Sage is uniquely qualified to deliver a distinctive level of professional real estate service to our homebuyer and seller clients.
John Stemlar, JD, MS – Principal and Managing Broker

404-256-7990
John has a real estate law, finance and investment background. This, along with over 15 years of diverse residential experience, enables John to offer his homebuyer and seller clients unique insights and creative strategies for achieving their objectives. He combines market knowledge, transaction experience and enhanced negotiating skills to deliver exceptional results. John specializes single-family homes, town homes and condominium properties.
Jeff Mueller, JD – Principal and Associate Broker

770-365-5933
Jeff is a licensed attorney with a background in real estate and contract negotiation, litigation and mediation. He has over 15 years of experience in Atlanta residential real estate brokerage. Jeff’s clients benefit from his market expertise, negotiating savvy and an unwavering commitment protect their interests. Jeff represents clients buying and selling single-family home, condominium and town home properties. He is an expert in new home construction.
Monica Bosco, ASP – Associate

678-637-7353
Monica has over 15 years of residential real estate experience. Her real estate marketing expertise, strategic approach and exceptional transaction management skills have earned her the trust and confidence of clients time and time again. Monica is a sought-after Home Staging Professional and is an active real estate investor. Monica represents homebuyer and seller clients in Atlanta’s in-town neighborhoods and throughout the north-metro area.
Mary Margaret Eldridge, ASP – Associate

770-826-0993
Mary Margaret has been with Sage for ten years. She is an Accredited Staging Professional and provides marketing and administrative support for the company. Mary Margaret has a background in business management; she is experienced in luxury consumer sales and marketing, and residential home marketing.