Address: 7761 Fisher Island Drive City: Miami Beach State: FL Zip Code: 33109 Phone: 305-710-5188 Website: http://portellinternational.com/ A 12-year resident specialist on Fisher Island, Mary Ann Portell's entire focus is the luxury residences and distinguished Island homes of this 216-acre private island. Accessible only by air and water, Fisher Island was once the home of the Vanderbilts. A proven asset manager, Ms. Portell is the largest independent broker in this elite enclave featuring luxurious residences from... read full review »