New York Post's Alexa Frieze issue shines the spotlight on the art patrons of the 21st Century — the real estate developers who infuse their luxury condominium properties with museum-quality art. They are Eduardo Costantini for Oceana Bal Harbour and Oceana Key Biscayne; Francis Greenburger for 50 West, NYC; Lionheart Capital for The Ritz-Carlton Residences, Miami Beach, and David Martin for GLASS and Grove at Grand Bay, Miami. Read more: