bird dog question

I’ve been trying to find info on preforeclosures in my state. I have concluded that the notice of default is not recorded in the court. DOes this mean that there are no preforeclosures in my state?
I am trying to find leads for investors. My state has a registry review newspaper that comes out weekly. It has all upcoming foreclosures listed. If I subsribed to this paper and got a little more info on the foreclosures, would this be considered a good lead?
It also has bankruptcy listings would these be good leads?