How to Locate owner of a abandoned property? *Possibly in Probate

[Ibn Abney]

Looking for some help locating an owner of an abandon property.  What I gathered from the neighbors the previous owner passed away and the house has been boarded up every since.

The area is really good, but this property is next to my rental is an  BIG eye sore. I want to possibly buy the abandon property but I have no idea where to start. The tax records are in the previous owner name and every year the unpaid taxes are removed/not sold at the annual delinquent tax sale. Anyone know a probate specialist in Chicago area?

Any help or advice appreciated!