Appraiser in training here. I am helping with an assignment. What do you do when County records are not online, as such? Is there a vendor we can go to that actual deeds, transfers, deed of trust papers can be viewed? The County in question - Marin County, CA only has summary information - parties, and tax amount. Probably the sale amount can be reverse calculated from the tax amount in most cases. Each document must be purchased for $8 (and you don't really know which ones you really need before seeing them)