Keep screening the calls bro, that motivated seller is coming soon.

BUT you can adjust your preference to amount of income (or debt-to-income ratio) when you are screening.  

Scott The Book on Flipping Houses, The Book on Estimating ReHab Costs http://www.biggerpockets.com/flippingbookConsider checking out HUD homes for small multi's owner occupied gets first crack.

ARV and low repair costs are obviously an issue but one of my pet peeves is not enough info to even pre-screen a deal. 

Broken windows, I will pay for the first time, but if it happens again, it's because of their irresponsibilityRipped and torn screens (Usually ripped and torn because the teenage kids are sneaking out of the house at night, via the WINDOWS!)

Look for a good margin in their numbers to screen initially and then do your own analysis of ARV and repairs to see if it's really a deal that works for you. 

Any advice for me on how to do a better job with this screening process?

@Maria Scott - I don't understand what you are talking about, can you post a screen shot?

We would get the one set of tenants out, then go in and fix/clean/paint/carpet the property, screen new tenants and place them, only to have to repeat the whole process over and over again.

We use property management, largely because we've been overseas for 16 years, and the PM handles marketing, collection of rents, property maintenance, and tenant screening.