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