As a real estate investor myself, I am very curious to see if anyone has statistics or anecdotal estimates on what percentage of tenants actually use these payment plans? 

Anyways, there's gotta be a public way to find out like realtor statistics or brokerage statistics.

The score is basically a Coles Notes summery of the report in statistical terms.My cut off is 650.

Is there a link to where you are getting this statistic?

Thirty days would be 8 percent vacancy in a year's time, but I don't really understand how those statistics are gathered and calculated.

That's why I posted on the forum, hoping this wasn't uncommon and I wasn't a rare statistic.

That is where really knowing your neighborhoods and markets comes into play, as well as objective data like crime statistics, census figures, housing price trends, etc.

I use sites like the bureau of labor statistics, city-data and forbes to gather information about the city and the neighborhood. 

Interesting statistic.  

It may be a bit of work but CA Association of Realtor and Bureau of Labor Statistics site offer some data that you might want to take a look at: http://www.car.org/marketdata/data/housingdata/http://www.bls.gov/help/hlpformseriesid.htmIf you can run the both data and combine them together, this might give you some clue.Good luck to you,Grove