Michael,
Good suggestion But I'm assuming that Todd's looking for Full names, addresses and other details...
Wouldn't driving around these days and getting access to those details be Almost impossible to Peek at and a cause for Suspiction?
Time and Money... You get what you Pay for...
Maybe some Local rental Door knocking and Networking with an Entry form to a creative Contest/Realtor survey in exchange for their information...
Free Local list building...
For some Strange reason people love being interviewed in the street and giving their Opinions...
It's all in the Approach...
Phil