William S. Costigan, Douglas Elliman, Office (212) 891-7255, Born in Springfield, Massachusetts. Graduate of Portsmouth Abbey School, Georgetown University, N Y Institute of Finance and N Y School of Interior Design., Spent 15 years on Wall Street as a Vice President for Georgeson & Co., a large proxy solicitation and investor relations firm. Served many Fortune 500 clients as an investor relations consultant., A steady producer & member of the Presidential Circle, has marketed and sold properties for the past 20 years in all areas of Manhattan plus Brooklyn and Riverdale., Member: Real Estate Board of NY, Arts Students League, NY Athletic Club, Thursday Evening Club., Interest Include: Sailing, skiing, motorcycling, painting and photography., Purpose, For Sellers: To find the right buyer for your property. One who will not only meet your needs, but also, where applicable, those of your Board of Directors ., For Buyers: To find the right living space compatible with not only your wish list, but also your needs.