Contact your attorney! Years ago I inspected a home that showed major damage to finished basement from water (all was dry, we were in a drought at the time). That and many other problems had the buyer walking, seller lowers price and says only a small amount of water ever gets into basement. Buyer moves in, rains came, basement floods. Buyers lawyer ask me to look at and prepare a report as they were going to court to sue the seller. I did (without getting an agreement with the lawyer). Goes to court, Sellers lawyer ask the judge to enjoin all parties involved. Three RE agents, two brokers, and I get joined with the seller to defend against the suit. It turned out to be a costly lesson. Contact your attorney!