Probate process help. Looked at properties, owner died this week.

[John Parshall]

We found several duplexes we were interested in owned by the same individual. We started the process of trying to get his info to reach out about purchasing. We just discovered that he passed away this week. It doesn’t appear that he has any heirs. I am not familiar in this area at all, and I was looking for some info as to what happens next. Any information would be appreciated. I googled and did not find any valuable info. This is in the state of Tennessee.