Meg Cramer en What's It Worth?: Historic Detroit Mansion For Sale Even before the financial crisis, Detroit was known for its undervalued real estate. Now, a bad situation is even worse.<p>Michael Bradley and his sister Annette Foreman have spent the last several months cleaning their mother's home. She died on Christmas Eve last year, and they're putting her house up for sale.<p>The four-story house, known as Stone Hedge, was originally built for Walter O. Briggs in 1915. Briggs was in the car business. His company built auto bodies, and he owned the Detroit Tigers.<p>Stone Hedge is large, about 10,000 square feet. Sat, 21 Apr 2012 10:23:00 +0000 Meg Cramer 9152 at