Building List of Apartment Buildings to Direct Mail To

[Jonathan C.]

I do 12K+/mo direct mail pieces for my rehabbing business, and have been targeting some mobile home parks as well, so I'm comfortable on sending a lot of mail, but want to build as comprehensive a list of apartment buildings I can to mail to.

So wondering how you guys recommend building a list of the apartment buildings in an area to mail to. The tax records of course will have them, but you have to kind of learn what the building classification codes are to figure out how to search them, which I could see being a hassle as you move to different areas. And Listsource seems like it isn't comprehensive.

How do you guys recommend building up your direct mail/cold calling list of apartment buildings in a given area?