Finding hard to find property owner?

[Levi T.]

We have this property we been trying to buy, and not having much luck finding the owners. I thinking they likely passed away as the address is in FL (just guessing), and likely the trustee has not taken over or anything. Ghost property with tenants living in it and not paying rent to anyone.

• The property owner address goes to a PO box that is out of state, and all mail gets returned.
• We used ProspectNow to try and find their phone number, no luck.
• We talked to the county, and they have the same address. Taxes are pass due for 2015 and 2016. They will foreclose on the property in 2018.
• After a bit of chatting up the country, they gave us a phone number. It was a dead end.

Anyone have a good method/service that I can use to track down the owners?