The house at 4041 Springmill Drive is not listed for sale in the local MLS. It looks like it was slated for the November sheriff's sale but cancelled. The current owners purchased it in 2007 and are still listed as the owners. The property could be in the process of being foreclosed or the owners may have worked out something with the lender.
Have you seen a for sale sign in front of the house? Have you seen it online? What makes you think it is for sale?