Meet Our Team

Kristen Brenner Duck Key, FL Real Estate Kristen Brenner, Broker, Realtor®

E-mail: Click here to email Kristen
Mobile Phone:305-664-1453
Office Phone:305-743-8507

Kristen graduated from Marathon High School in 1983 and then got her BA degree at Washington State University for Interior Design in 1987. During that time her mother and father Wayne and Elaine Brenner both well known Realtors of Duck Key who established Brenner Realty in 1977, insisted that she study for her Real Estate License on Spring break in 1984 and that summer she got her Real Estate license.

Kristen changed the name to Duck Key Realty in 1999. 

Kristen has been top producing agent in the Middle Keys ranking as one of the top 10 agents in the Marathon area for the last 10 years. No single agent has sold more real estate on Duck Key than Kristen. 

After the financial melt down of 2008, Kristen has been a part of the American Home Mortgage Servicing team of Monroe County handling bank REO's from Key Largo to Key West as well as the sales of properties in Duck Key. 

After 7 years with  mastering the Marathon market with two other Real Estate companies, she has ventured back on her own in 2017.

Re-opening Duck Key Realty and forming two new companies in Marathon, Florida Keys Real Estate Co and Vacation Rentals of the Florida Keys.  Come by and visit us at 11287 Overseas Highway, Marathon, FL 33050.

Margie Casey Duck Key, FL Real Estate Margie Casey, Broker Associate, Realtor®

E-mail: Click here to email Margie
Mobile Phone:(305) 680-3272

Margie Casey began working for residential builders and commercial real estate developers in 1981. In 1998, she was named Small Business Person of the Year, by the Plantation Chamber of Commerce, for her business achievements and community service related to her 10 year retail and event business, an honor personally presented by former Governor Jeb Bush. High profile clients included the Florida Panthers, Plantation General Hospital, Starwood Hotels & Resorts and secret celebrities.

In 2006, she resumed her career in real estate obtaining real estate, appraisal and mortgage licenses, to deeper understand the home buying and selling process. Her analysis and marketing skills provide today's sellers and buyers with a strategic advantage.

As Founder of Real Estate Scorecard, she has guided thousands of buyers through the relocation process since 2011 and continues to do so.

In 2016, she and her husband Dennis moved permanently to the Florida Keys, her childhood dream. In late 2018, she teamed up with Florida Keys Real Estate Group as a Broker Associate, to help buyers and sellers connect on Duck Key (where she's currently building a home), at Key Colony Beach and throughout the Florida Keys.

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About Duck Key Real Estate Co.