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 $500,000 to $15,000,000.   As a Wharton School Graduate, Ms. Portell specialized in International Marketing and Real Estate. She has repositioned Fortune 500 companies like Revlon, Elizabeth Arden, Heinz 57, and Carnival Cruise Lines in profit maximization. This powerful marketing background allows Ms. Portell to expertly position the multi-million dollar properties on Fisher Island and assist her clients in making the proper purchase decision and asset acquisition.   Although Ms. Portell is confidential about her clients, over 600 of the most important families in the world have residences on Fisher Island. Her largest condominium sale this year was Oprah Winfrey's penthouse to a Fortune 500 CEO in which she represented both the Buyer and the Seller. This impressive sale will be one of the highest recorded condominium transactions in the Southeast. Her largest home sale was $12,800,000. to a celebrity on Star Island. Ms. Portell's sales volume over the past two years has exceeded well over $100,000,000.   A strong, well-cultivated international social and business network; community and charity involvement; a constantly optimistic and cheerful attitude; intelligence, motivation, and the wisdom to put it to good use makes Mary Ann Portell a leader in the luxury residential market.   Portell International Realty, Inc. was founded by Mary Ann Portell in 1990, quickly gaining preeminence in the luxury residential market through her strong business and personal ties to the community. Mary Ann Portell specializes in luxury waterfront properties on Miami Beach and on Fisher Island.