I started in retail at a grocery store at 16.

The only thing I can think of is to watch for cars that are obviously being stored on the street.

Do you just go buy from a box store or are there better options for investors? 

In the past 2 weeks I have gone as far as getting a app created where it is basically a high tech business card.

Offering a good deal gives us a bigger response and allows us to pick a great tenant out of a pool of applicants, rather than getting only a few applicants and having to pick the least crummy one.As for the one with the pit bull and eviction and lie on the app, that one should be obvious as a no go.

I charge an application fee which I collect when the prospect returns the application and use that to do credit check and process the app.

Invest in a small lockbox $30-$40 from HD or your hardware store and if vacant unit put it on the apartment/house door and provide the code to the individual companies going out to give you a quote that way you don't have to be there everyday.

Then they have the product placement display where the name of the tile, granite, etc. store is prominently shown (is the flip getting the product for free?) 

We also get used appliances from a used appliance store that takes care of delivery, installation, repairs, and knows us by name.  

trulia, craigslist, zillow, apartements app, etci use a variety of different apps that i itther foud mysel or were mentioned on the podcasts and webinars.