Buying property with unreported sale @ tax auction

[Dustin Berman]

I am interested in bidding on a property at my local foreclosure tax deed auction (King County, WA) that I suspect may have an unreported sale.

The owner of this property had 4 parcels in the same subdivision. 2 of the other parcels were recently updated with new sales information and removed from auction. County records still show the taxes on the property as unpaid, and it is currently at auction. It also looks like there have been improvements made recently to the property, which would indicate to me that there is a new owner of the property.

Worth noting that this is vacant land, but construction of a house has begun on the property.

Has anyone dealt with a similar situation? If I choose to bid on this property, will the money I bid potentially be at risk?