Online Tax Records is Confusing me HELP!!!

[Robert Wilson]

Hey guys. I'm just starting out in wholesaling, and I've been doing a lot of driving for dollars lately. I have a list of about 35 addresses so far, and I'm starting to research who the owner is of these properties. On my county tax website they say who the owner is and what their tax bill is/was, but sometimes they only have information from 2017. Does this mean that no one owns the property? Does the county own it? Can someone please help me find who the owner is of these vacant properties I have been riding around looking at. Any help would be much appreciated!! Thank you