Ritz penthouse under contract for $21M in Sunny Isles

The penthouse levels of Ritz-Carlton Residences, Sunny Isles Beach A penthouse unit at the upcoming Ritz-Carlton Residences Sunny Isles Beach is reportedly under contract for $21 million. The residence is actually a combination of two units that will take up the entire 51st floor, the Wall Street Journal reported. It will have five bedrooms, six-and-a-half…