They have been publishing similar statistics for the last several years now to encourage more to become CPAs, yet the number continues trending upwards.

Older roofs, statistically, will need more repairs.  

People who did it wrong and weren't able to execute.If you do it right, it’s statistically the best market in the country for cash flow.I'm pretty biased towards Metro Detroit...HOWEVER, I do personally make over $100k/yr cash flow from 16 properties here.

Deals are more about what YOU make of them then what the broad statistics say they are.

Why in the world would a bona fide lender charge less for a statistically riskier loan that banks can borrower let alone owner-occupied real estate rates.

You will know exactly what is in each house, what the measurements are, etc. this means that if you have many you can have a standard depreciation schedule for them, it also means you can track statistics on repairs (a quote for a single home is completely applicable to any other property), how long appliances last, etc.

You determine the probabilities from the statistics of a large data set … 200 flips in the example.Once you have done 200 rental units you can determine the EV going forward.Not a very satisfactory answer I know.

I know there are a few public access websites that aggregate crime statistics and other factors to give zipcodes specific ratings.

I encourage you to look at crime statistics for the entirety of the city......With that being said a ton of my colleagues do flips, buy and holds, new builds, etc.. in Pueblo West.

Government report statistics - population growth, crime rates, ethnicity mix2.