Sullivan currently serves, in residence, as the master of Winthrop House at Harvard College, where he lives with his wife (fellow Harvard Law School instructor and Class of 1994 Harvard Law School alumna Stephanie Robinson) and two sons.
Ronald Reagan | Gilbert and Sullivan | The Ed Sullivan Show | Sullivan | Arthur Sullivan | Andrew Sullivan | Sullivan County, New York | Ronald McDonald | Ronnie O'Sullivan | Ronald Fisher | Sullivan County | Ronald Colman | Ed Sullivan | John L. Sullivan | Gilbert O'Sullivan | Ronald McDonald House Charities | Ronald D. Moore | Sullivan's Travels | Sullivan & Cromwell | Ronald Hutton | John Sullivan | Ronald Grigor Suny | Maureen O'Sullivan | Ronald Reagan Presidential Library | Ronald J. Clarke | Ronald | Robert Sullivan | Nicole Sullivan | Louis Sullivan | Kevin Sullivan |
It was donated to them as a gift of Jo Carole and Ronald S. Lauder, Nelson Rockefeller Bequest, gift of Mr. and Mrs. William H. Weintraub, and Mary Sisler Bequest, all by exchange.
In 2007, he paid USD $103 million for a house in East Hampton, New York—the most ever paid for a residential property at that time—from Adelaide de Menil, heiress to the Schlumberger fortune.
After successfully fighting off a hostile takeover attempt by Ronald S. Baron in 1986, Strawbridge & Clothier survived as an independent, locally-owned department store into the 1990s.