David I. Berley, Chairman of Walter & Samuels, Inc., has five decades of experience in acquiring, managing, converting, and developing commercial and residential real estate in Manhattan. He started his real estate career at Berley & Company and joined Walter & Samuels in 1968, eventually buying the company in 1973. Berley has been a pioneer in transforming commercial neighborhoods and converting pre-war residential buildings. He has done over 30 condo conversions and recently converted 15 Madison Square North into luxury residential apartments.