We actually had a situation recently where the property flooded, and when they pulled up the carpet only a portion of the home was on a foundation. A lawsuit shortly followed. It was misrepresented as being on a slab, which a portion of it was so the seller felt they had done nothing dishonest. The buyer felt differently. Was it disclosed to you when you purchased the home? I would find out exactly what your situation is and disclose it to the fullest! Best of luck.