Owner Passed...No Living Relatives...Lien On Property

I found a property that has a lien on it and upon further investigating I found that he has passed and his information is incorrect on the county appraisal. It has the owner listed out of state but he lived in the property but had some relatives living out of states.

Upon further review it appears those relatives passed (taxes hadn't been paid on the home for 2 years)and he might have one more relative but its hard to tell because that person is over 80 years old. To top it off it looks like the address listed out of state is also abandoned which was the address for the last listed possible relative. 

Any clue on how to proceed? Is there a way to get this property before it goes to auction?