I check the list history of the subject address--even if they are re-fi'ing on place they have been in for several years. Will also check all the comps and it is amazing how many interesting things pop up. Very easy to spot the one or two listings that preceded the last one that actually sold. Often see a cancellation or expiration with entry of the new listing (later) on same day, and usually at lower price. If that were the listing that got a contract in 10 days then 10 gets posted as its D.O.M. I will go back and string together the two or more consecutive listings and get a different total of days of full public exposure in the marketplace. You find out that the house had absolutely no updating for the last 20 years---and see the really nice place that was pristine and updated and contracted in 3 days and had never been listed in the 20 years since they bought it ! Yes, sometimes contracts fall through later and a place goes back-on-market, but often the initial perception of condition by wary buyers is directly reflected in days-on-market and usually at high % of list price, if not 100%. Any sales over 100% of list get the automatic call to list agent, or selling/buyer agent. Usually there are concessions of offering to cover closing costs, but sometimes you learn they had a bidding war with 2 or 3 or 4 shoppers seeing house around the same time. That's smart marketing when the agent knows they have a gem to sell !