The most expensive property for sale in the US is a Florida compound where a late investing mogul gathered hundreds of his family members John Donahue first bought $1 million worth of beachfront land in 1985. Now part of the compound he built is on the market for a potentially record-setting $295 million. https://www.businessinsider.com/most-expensive-home-for-sale-in-america-naples-florida-john-donahue-2024-2