In what could be one of the biggest residential real estate stories of the year, a historic estate in Hillsborough, Calif. has hit the market for $100 million. The 47-acre spread has belonged to members of the de Guigne family for 150 years, and is finally being sold by Christian de Guigne IV for "estate-planning purposes," according to The Wall Street Journal. The sale has one unusual stipulation: de Guigne, 75, comes with the home. He's retaining a "life estate" on the property, meaning he will have exclusive use of the home until he dies, according to The WSJ. The 16,000-square-foot ... Read More