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Our Team

Lynne Koy


Lynne Koy’s real estate experience spans over four decades, with 12 years of starter experience in Chicago and 30+ years in Sarasota. She has translated residential real estate into over $1 billion in sales. Licensed in 1973, Lynne has experienced success at every level. She is a hardworking and dedicated woman.

Her long-term community involvement has given her a great appreciation for the communities, the people and the fabulous lifestyle of Sarasota. She dedicated herself to the process and became an inspiration to many.

Recently, Lynne decided her legacy shall not end. She created The Lynne Koy Group so clients can hear the name they trust, for many more decades to come.

With superior organization skills and intense commitment to customer service, The Lynne Koy Group is your best asset when choosing a REALTOR®, whether buying or selling your home.

Oliver Giesser

Oliver Giesser


Born and raised bilingual in Wuerzburg, Germany, Oliver spent most of his life in sales and marketing.

He is a veteran of the German Army Special Forces and after completing his tour of duty, Oliver attended WDS, a state-recognized college for languages, where he graduated and received his BA as a certified translator.

While working as a freelance translator for some of the major global players in the automotive industry like Bentley, Jaguar and Harley-Davidson, Oliver also became a partner in a dealership for rare and exclusive vintage automobiles where he managed to quadruple the sales within two years by implementing a new marketing strategy and launching an internet platform.

After moving to the US to join his parents, Oliver decided to use his strong sales skills in the real estate business and joined the Coldwell Banker Longboat Key Office in late 2014.

After two years as an independent sales associate Oliver started a sales team together with another agent and they managed to rank among the top 4 sales teams in the LBK office right from the start and continuously achieved this result until he proudly joined the Lynne Koy team in January 2018.

Courtney Tarantino

Courtney Tarantino


Courtney Tarantino has spent her adult life exposed to and working in the Luxury Real Estate market. Following her family roots from Pebble Beach, California, her family owned and operated their own Design and Real Estate brokerage firm, Cusack Associates. 

In 2013, Courtney went out on her own as an independent agent in Sarasota with Atchley International Real Estate Co.  She had the highest priced Luxury home sale at Atchley International within a year.  To broaden her real estate and development experience Courtney pursued an opportunity to join Lennar Corp., The Fortune 500 Company based in Miami, Florida to open and pre-sell a 1,675-door community in Lakewood Ranch. Through the position, Courtney became familiar with the design and development processes required to build out lifestyle resort living, golf course design, as well as pre-construction real estate sales. 

Courtney proudly joined the Longboat Key office at Coldwell Banker in 2016.  Coldwell Banker has provided her a home where all her attributes and experience are used to their full potential. Additionally, before her Real Estate career Courtney began at CNN in Atlanta Georgia, where she was accepted into an on-air internship. Courtney left CNN to pursue a passion for advertising and worked as an Account Executive for multimillion-dollar clients, Randall’s Supermarkets and Bank United in which she oversaw their marketing campaigns.

Courtney holds a B.A. in Speech Communications from Pepperdine University, in Malibu, California. Courtney lives near downtown Sarasota and the real estate markets she serves: Bird Key, Lido Key, Longboat Key, Casey Key and in the luxurious communities of mainland Sarasota. 


Sarasota Luxury Real Estate Agents
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