No, as Joshua mentioned, all that is recorded is the purchase price not the details of seller paid items for the buyer. Also closing costs are all the little fees associated with the transaction that add up (like escrow and title, etc.) and are normally paid by the buyer, unless requested that the seller contribute or cover those costs. If the buyer's agent "resolves" an issue along the way with a reduction or increase of purchase price, then this amount would be shown in the county's sales record. When an agent is doing a CMA for a client it is good to ask questions to the past selling and listing agent on a sold property to get the whole picture when determining value.