Discover your dream investment at 11283 4th Ave Ocean in Marathon, a legal duplex featuring a 1 bed, 1 bath unit on the first floor, and a 2 bed, 2 bath with an office upstairs, both offering the potential for rental income or personal use. This property is an investor's delight with options to rent, sell a TBR, or convert to condos, complemented by a new heated saltwater pool, privacy fence, travertine pavers, covered patios, a hot tub, and a garage with AC and an EV charger. It comfortably accommodates parking for over five vehicles, including RV and boat trailers. 2016 metal roof, equipped with all impact windows (brand new on the first floor), and includes amenities like shore power, an outdoor shower, and a fish cleaning station. Each unit has separate electric meters, in-unit laundry, with the first floor boasting a new bathroom and the second floor featuring modern updates like a large walk-in shower, cathedral ceilings, and a sleek kitchen, all while providing breathtaking ocean views from a 250 sq ft deck. Nestled in a prime location on the Atlantic side, this property offers direct ocean access for fishing with 60 ft of dock space, making it a perfect blend of luxury, practicality, and investment potential.