Beautifully renovated and fully turnkey duplex located on a deep-water canal in the heart of Marathon. This rare income-producing property features TWO spacious homes, 2BD/2BA on each side, each unit offers approximately 927 sq. ft. of updated coastal living with impact windows and doors, granite countertops, stainless steel appliances, tile flooring throughout, and covered parking. Renovated in 2020, the property blends modern finishes with the relaxed Florida Keys boating lifestyle. A true boater's dream, each side offers its own 30' concrete dock and seawall (60' total) complete with 30-amp shore power and fresh water hookups. Enjoy quick ocean access and easy Gulf access via Vaca Cut, making this an exceptional setup for anglers and boating enthusiasts alike. The waterside outdoor spaces are designed for entertaining and enjoying the Keys lifestyle, featuring string lighting, solar-lit dock pilings, under-dock fish lights that attract snapper and tarpon, and frequent manatee visits along the canal. Located directly next door to Oceanfront Park, owners and guests enjoy immediate access to one of Marathon's premier waterfront parks offering pickleball courts, a dog park, kayak launch, open green space, waterfront walking trails, playgrounds, exercise equipment and community events. Conveniently located 4 miles from Sombrero Beach, and 1.5 miles from Coco Plum Beach. Currently tenant occupied with both units rented month-to-month. This property also has strong vacation rental potential. Ideal opportunity to live in one side while renting the other, or maximize income potential with a fully turnkey investment property in one of the Florida Keys' most desirable boating communities. Current Insurances are very reasonable: $3,841 Flood (Covers both sides) 576 - $4,303 Wind 574 - $4,129 Wind 576 - $860 HO/Liability 574 - $721 HO/Liabilty (Pictures are of 576 99th, 574 is the same layout/finishes. Access can be arranged