John's Island Specialists

Buying and selling residences at John’s Island demands expert representation. Count on John’s Island Real Estate Company to provide it. When it comes to serving your John’s Island needs, look no further than John’s Island Real Estate Company. Since 1969, our team of experienced, professional Sales Associates live on John's Island, and are experts in understanding all aspects of the unique John’s Island lifestyle and property ownership including memberships, fees and assessments, water management and architectural review standards. 

Unlike any other real estate company, we invest 100% of our time and resources on John's Island properties and remain as the only on-site agency.

Our sales team brings buyers and sellers together to craft agreements that offer long-term value for each of them. That's why buyers and sellers continue to choose JIRE time after time, as well as refer their friends and family to us. Because we only sell John's Island properties, we know the inventory and have an inside track on resale properties and upcoming property releases.

As evident by our continued success and proven track record, selling your property requires one crucial ingredient – a John's Island specialist.


Bob Gibb, Owner/Broker

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When Bob Gibb visited John’s Island in 1976, he knew it was where he wanted to live one day. A few years later, he and his wife purchased a home in the more-than-upscale community he’d fallen in love with. A Kansas City native and graduate of the University of Kansas, Bob moved to Manhattan to become a successful investment banker on Wall Street from 1968 to 1989 before moving to John’s Island when he switched careers to enter real estate. After 10 years as a top producing broker, Gibb proudly purchased John’s Island Real Estate Company from the late developer’s daughter, Helen “Lollie” Ecclestone, in October of 1999, and has been working with the same affluent client base he knew as a banker. As a John’s Island resident for over 30 years, Bob has earned the reputation as the leading luxury real estate broker and agency on the barrier island. 

Bob consistently leads the industry in sales volume and attracts top talent, ensuring his team of experts represent only the best in the industry. His passion and extensive knowledge make him and his team the go-to source for information and education about the ultra-luxury lifestyle on John’s Island. Giving back to the community is just as important to Bob, who’s philanthropic resume reads as a “Who’s Who” among John’s Island and the local community, where he recently served on the Board of Directors for The Riverside Theatre, Northern Trust Bank, Community Church and several other local corporate boards. He was also formerly on the Board of Trustees for The Treasure Coast Wine Festival and Saint Edward’s School and was a founding board member for Marine Bank & Trust in Vero Beach.


Judy Bramson, Sales Associate

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Judy and her late husband Tom, discovered John’s Island in 1972, and moved here from Bloomfield Hills, Michigan in 1984. Shortly thereafter, she joined John’s Island Real Estate Company. Her vast experience and knowledge of the JI community and surrounding area, as well as her passion for interior design, has been instrumental in the success of her flourishing real estate career. She enjoys spending time with her family, traveling, golf and is an active member of the John's Island community.


Jeannette Windsor Mahaney, Broker Associate

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Jeannette’s professional career in business and the real estate industry started in 1970 in Maryland. Over the past several decades, she has had a very diverse business background culminating as the Executive Vice President and General Manager of Allied Container Corporation in Baltimore, Maryland. She and her late husband, Don, moved to South Florida where Jeannette continued her business pursuits in the real estate industry as a top producer and extremely successful real estate broker in Boca Raton. Jeannette is involved in numerous community activities and was a working member of the Board of Directors of John’s Island Community Service League for over 11 years, and has been a resident of John’s Island since 1990.


Ba Stone, Sales Associate

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Ba and her family moved to John’s Island from Darien, Connecticut in 1972. She has a vast knowledge of real estate and the John’s Island community. Her 40+ years of residing here has given her the opportunity to live in a variety of properties, which has included both building and renovating. An avid golf and tennis player, she has also been involved in several community organizations since moving to John’s Island.


Kristen Yoshitani, Broker Associate

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Kristen joined John's Island Real Estate in 2007 and has been partnered with Bob Gibb as a sales executive since 2014. Born in Zama, Japan and raised in Locust Valley, New York, Kristen attended Old Westbury School of the Holy Child, and later graduated from New York University with a B.A. in Psychology. She spent several years in NYC working in television production and resided in Aspen and Los Angeles prior to moving to Vero Beach in 2005, where she immediately pursued her real estate career. Her acumen within the industry and understanding of the unique John's Island community is complemented by her diverse background and worldly experiences. Kristen enjoys traveling, volunteering, playing tennis & pickle ball, snowboarding (when in the Rockies) and leading an action-packed life with her husband, George Nagy and children, Kendra and Gavin.


Susie Perticone, Broker Associate, GRI

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Susie's love for the John’s Island community began over 15 years ago when her parents moved to John’s Island. Originally from Darien, Connecticut, her real estate career developed in Vero Beach where she was a top producer for five years. Upon graduating from Boston College with a Bachelor’s degree in Art History, she spent several years in fixed income sales on Wall Street before raising her four daughters in CT, where she served on the Darien Board of Education. Accredited with a distinction earned from the National Association of Realtors, Perticone holds a GRI license (Graduate, Realtor Institute). Her professionalism and knowledge of John’s Island/Vero Beach, as well as luxury markets, complement her own experiences, ensuring a seamless transition for her clients. In her spare time, she enjoys traveling, golf, cooking, and yoga.


Cheryl Sangbush, Broker Associate Assistant

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In 2014, Cheryl Sangbush joined John’s Island Real Estate Company as a Licensed Broker-Associate Assistant to Bob Gibb, Broker/Owner, Rennie Gibb, Broker Associate & Kristen Yoshitani, Broker Associate. Sangbush has been active in real estate for over a decade. Most recently, she was a Sales Associate with Windsor Properties and a Broker Associate at Berkshire Hathaway in the resort town of Vail, Colorado. Previously she spent seven years with Norris & Company specializing in barrier island properties in Vero Beach. She has comprehensive knowledge of the luxury second home market, tenacity as a professional and a strong penchant for details. Her enthusiasm, resourcefulness and reputation are the cornerstones to her success. Sangbush understands the importance of catering to the needs of clients and works to the best of her ability to ensure the highest level of service.


Rennie Gibb, Broker Associate

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Fortunate to move to John’s Island in 1989 with her parents, Bob and Wheatie Gibb, Rennie has proudly considered it “home” ever since. She attended Saint Edward’s School during her formative years, and achieved both her undergraduate and graduate degrees in Advertising from Southern Methodist University. Following graduation, she worked at TM Advertising on accounts such as American Heart Association, Universal Orlando Parks & Resorts and March of Dimes and subsequently honed her skills as a Business Manager for Arts & Letters Creative Co. on Google’s national and global advertising. In addition to her career, Rennie has been active on the SMU Young Alumni Board, with Saint Edward’s School and Indian River Community Foundation, as well as several other charitable organizations. While she enjoyed the unique opportunities and of the communities in which she worked, the lure of her beloved hometown and all it offers proved too enticing to ignore. Her acumen for marketing and history in John’s Island will enable her to leverage a unique perspective to clients.


Luke Webb, Sales Associate

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Originally hailing from St. Louis, Missouri, Luke brings a comprehensive background to John’s Island Real Estate Company that spans real estate sales, development, pre-construction and design-phase projects, specifically in the luxury market. He combines his business acumen with a reputation for relationship-building and has developed both strong bonds within the community and a deep love for Vero Beach since settling here. A graduate of Florida Southern College, where he was a nationally ranked water-skiier and coach, Luke earned his MBA with a concentration in Entrepreneurship and spent the next decade in South Florida honing his skills. Outside of his passion for matching clients with their ideal home, Luke is an enthusiastic golfer and member of both RedStick and Quail Valley, active with the John’s Island Sportsman’s Club, as well as an avid boater, aviator, tennis, and pickleball player. He and his wife Molly, a professional in the architecture industry, have two young daughters and have been committed to several philanthropic endeavors within the community, including leadership and advocacy for the Leukemia and Lymphoma Society.