sentences:  A. Berle (1937–2007), was a highly respected environmentalist, New York State assemblyman, commissioner of the State Department of Environmental Conservation and president of the National Audubon Society She in turn sold the estate in 1999 to her son, Robert Berle, great-great-grandson of the Sloanes, and his wife, Sonya, for just under $1 million.They undertook a major restoration effort, repairing original details and adding new wiring, plumbing, heating, and opened the property as a luxury Inn while portions of the home remained a work in progress with restoration.In August 2005 the estate - with the manor house, greenhouse, carriage house and cottage - was placed on the market for sale for an asking price of $21,500,000 on .