Our Team

Mark Milligan


Mark founded F4 Tech in 1998 and has worked in the field of forestry and natural resources management since 1988.  He provides overall organizational leadership, leads business development, develops technical reports, and presents technical information at meetings and conferences. Since the company’s inception, he has driven technological advancements – several of which culminated in U.S. patents supporting innovations within the industry.

Mark actively serves on several professional boards and engages with other organizations sharing similar goals and objectives such as the Society of American Foresters, Florida Forestry Association, and the Association of Consulting Foresters. Prior to forming F4 Tech, Mark worked for the Florida Forest Service (10 years) as a County/State Lands Forester and State Lands Management Coordinator. He is a full member of the Association of Consulting Foresters and was inducted into the Florida Forestry Hall of Fame in 2020. Mark has a B.S. in Forest Management from Louisiana State University and an MBA from Florida State University.

Mark is leveraging his expertise and contacts in forest management as an associate for Tarpon Blue Real Estate Services LLC as part of the F4 Land Investment Group.

He lives in Tallahassee, Florida with his wife and enjoys fishing and hunting whenever he get a chance.

Arnie Sarlo


Brett Dubois of Tarpon Blue Real Estate Services

Brett DuBois

Co-Managing Broker/Principal

Rowdy Sullivan

Sales Associate

David Yates of Tarpon Blue Real Estate Services

David Yates

Sales Associate

Trevor Roberts

Sales Associate

Andrea Smith of Tarpon Blue Real Estate

Andrea Smith

Co-Managing Broker

Ladd Bass

Sales Associate

Troy McDonald

Sales Associate

Dustyn Whitmire

Sales Associate

Fred Fanizzi

Sales Associate

Ken Smith


Teresa Whitmire

Sales Associate

Patrick Utter

Broker Associate

Marshall Hilton


Alex Clark