How to find home owners to purchase their properties

[Frank Yaccarino]

I have  been driving for dollars and have found properties that looked as if no-one was living there & others that needed work.. (they all needed work)  There are no for sale signs and they are not listed on realtor.com.  How can I find the names and addresses of the owners to ask them if they want to sell.. Also, how can I tell if its a neighborhood people would want to rent in?