Professional Office Space - The First Professional Centre | 5701 Overseas Highway Units 8, 9, & 10 in Marathon. Three contiguous units (8, 9 & 10) available for sale in The First Professional Centre, a highly visible 17-unit CBS elevated complex on Overseas Highway in the heart of Marathon. Situated in a high-traffic corridor near Gulfside Village, Winn-Dixie, Publix, and Walgreens, this location offers outstanding exposure and convenience. The offering comprises 2,556 total square feet across three units at 852 sq. ft. each. Units 8 and 9 are currently configured as a combined medical office suite, while Unit 10 operates as a separate medical office with interior access to Units 8 and 9 -- providing the flexibility to function as one large, unified space if desired. While currently configured for medical use, the space is well suited for other professional office purposes. The First Professional Centre features a shared, spacious parking lot and prominent business signage along Overseas Highway for maximum roadside visibility. Professional office use only per condominium association rules.