Warning Signs a House May Be a Money Pit A Listing That Says “Sold As Is” The most obvious warning sign is, well, an actual warning from the seller. ... The Smell of Moisture. ... Warped Walls. ... Stuck Windows & Doors. ... Sloping or Sagging Floors. ... Foundation Problems. ... Inward Grading, Poor Drainage & Short Downspouts. ... A Bad Roof. More items...