Diamond in the Rough or Money Pit?

The lucky winner of Blog Cabin 2012 will enjoy a completely remodeled home that combines the charm of a circa-1884 farmhouse with the convenience and efficiency of modern construction. But for most people, buying an old house means, well, living in an old house — and all the fears of a money pit that go with it. Eyeing a historic property? Here’s how to avoid the expensive surprises.