Auditors Website shows $0.00 purchase price

[Brad Swaney]

The auditors website in area I have been looking at real estate deals, has a transfer history and shows purchase price.   I come across some investors who purchase these properties and shows that the purchase price was $0.00 when transferred to there name.  They really getting these properties for FREE?  If not free why does it show $0.00 purchase price?   The couple investment properties I have purchased shows my actual purchase price on properties.   I am new to this so sorry for all the questions.