Kristen Brenner, Principal Broker

Decades of Excellence. Generations of Trust.

What do Clients Say?

Without hesitation I would recommend Margie Casey and Kristen Brenner to anyone seeking a trustworthy and dedicated real estate professional. Their knowledge of the Florida Keys is second to none. We had the extreme pleasure of working with Margie and Kristen during our recent purchase of our dream house and we were extremely impressed with their commitment and determination throughout the entire process. Kristen and Margie always made sure to keep us up to date with communications from the seller and always had answers to our questions and concerns. Thank you to Kristen and Margie for making this experience for us stress free and enjoyable! We are extremely grateful for all their hard-work and dedication they put into making our dream a reality.

Andy & Trish Macchio

Great experience with Kristen and Margie. They are without a doubt two of the best realtors in Marathon and Duck Key. Very accommodating to our schedule and knowledgeable. They found us exactly what we wanted and were there for every step of the way. Highly recommend!

Latimer & Cindy Farr

Kristen and Margie are an outstanding team to work with. They are very knowledgeable, professional, and their responsiveness was incredible. They took the time to listen to our desires and needs for our future home and they delivered. Kristen and Margie truly care about their clients which is emulated throughout the entire process.

Jason & Rebecca Thomas

Kristen and Margie are an absolute wealth of knowledge when it comes Real Estate! Not only did we have a pleasurable buying experience when we first purchased our keys home but they’ve assisted us in navigate through the ownership process as well. These two make an awesome team, they are the realtors that became our lifetime friends❤️

Crystal Griffin

Happy with the opportunity to get a place in Duck Key at a price that was in our range. The team knew what we were looking for and closed the deal fast!

Ken & Amy Floyd

About Kristen

Kristen Brenner, a Florida Keys native, graduated from Washington State University in 1997 as an Interior Designer. During that time, her mother and father, Wayne and Elaine Brenner who established Brenner Realty in 1977, encourage her to become a licensed real estate agent which she achieved.

Kristen continues to be one of the Top 10 Realtors® in the Marathon area for the last 10 years. And no individual agent has sold more real estate on Duck Key than Kristen!

After 7 years of mastering the Middle Keys market with two local firms, she ventured on her own in 2017 to provide a more personal home buying and selling experience to the market place.

She re-opened Duck Key Realty under a new name, Duck Key Real Estate Co, and formed two new companies in Marathon: Florida Keys Real Estate Group and Vacation Rentals of the Florida Keys, both serving unique needs in the Florida Keys community.