How do I do a Multi-Family mailer to owners.

[Michael Beeman]

Ok,

 So I'm wanting to contact a bunch of Multi-Family owners about purchasing their property. I know some people have done or mentioned getting "lists" of owners in certain towns or areas etc and doing mailings or cold calls. And I've heard some even filtering it out to owners who have owned the property for more than "X" amount of years.... So.. Where do I get these lists?  I greatly appreciate the help!   @John Hagen  and I have some investors looking to purchase some property, and we are looking to 1031 some of our own property into some larger multi-family.