I posting this on behalf of a friend of mine. He bought a 1999 370 Sundancer this past summer. Survey showed that one of the stringers inside the cabin in the mid bilge had rot. So bad you could poke your finger through it. When I saw/heard this I thought it was a bizarre place for rot, especially since the boat and bilge was spotless. He bought from via broker from Marine Max. He had the local marina that it was at givr him an estimate for repair..$4000. The seller took that off the price and the sale continued. he now keeps the boat at my marina (different marina that gave the first estimate)and is going to have them do the work. They pulled it into the shop this week and uncovered much more rot. The floor under the aft cabin is rotted and there is white mold growing all underneath there. My buddy is devastated. They are now thinking $10,000-$20,000 to repair depending on what they keep peeling back. The shop says the stringers involved are holding the floor up and are not involved with the engine. Attached are a few pics. The water you see is coming out of the wood as it thaws (we are in MN). What would you do? What can he do? They think the boat either sunk or somehow got water in and it never drained. The bilge looked great cause it was discovered that they repainted it. You can see how they painted over it, covering water stains? This was discovered by my marina. Sad case. Gorgeous boat otherwise. Thanks!