Where do these renters come from??

[Chad Tessmann]

After reading all these books and forum posts... one thing that still doesn't click with me is where on earth do these renters come from?!?  So I find a good property deal... takes time but ok.  Fix it up probably... yeah, I'm good at that.  And then what?  I post an ad on a few popular sites and magically a renter will apply?  

I guess I have a fear that all of the renters in my area will suddenly vanish.