Orlando developer Chuck Whittall is under contract to buy out the owners of a waterfront co-op building in West Palm Beach, The Real Deal has learned.  Whittall, founder and CEO of Unicorp National Developments, could pay close to the asking price, roughly $200 million, for the 140-unit La Fontana at 2800 North Flagler Drive, according to sources. The 10-story building was completed in 1961, meaning it’s about 65 years old.  The co-op hired Christian Prakas of Ryan Serhant’s firm, Serhant, to market the building for a bulk sale last year. Owners signed a letter of intent with an unnamed developer […] This article originally appeared on The Real Deal. Click here to read the full story.