You renovated the parlor floor of your Park Slope brownstone two years ago. The contractor charged $620,000, finished on schedule, and walked off the job with a smile. Now you notice the dining room ceiling sagging, a hairline crack running along the new exterior wall, and water staining the freshly painted plaster every time it rains hard. You call the contractor. He doesn't pick up. Welcome to the messy world of New York construction defect claims. At Yassi Law PC, we repre