Price drop reflects cost needed to repair roof/ceiling. Seller is willing to accept a original full price offer and pay for the roof to be redone out of the seller's proceeds after close of escrow. If that is the case and course of action your buyer wants be mindful of FHA and VA appraisals.
This property is off market, which means it's not currently listed for sale or rent on Zillow. This may be different from what's available on other websites or public sources.