I would like to know how the characteristics and elements of a property that investors look at before deciding to Fix and Flip or Buy and Hold?

Usually it's a category like 'retail', 'warehouse', 'medical', etc.Are there certain traits or characteristics for a building to be deemed medical?

My question is this: How do you organize/summarize location characteristics (i.e. crime, drugs, schools, unemployment, population growth, etc.) for each of the properties that I have found in a way that makes it easy to compare and contrast those properties? 

My recommendation would be to look at surrounding communities that can provide you a good balance of both investment characteristics.  

Even then each market has different submarkets with their own characteristics and revenue/expense structures. 

Take hedonic regression as an example, with data on prices and property features, hedonic regression allows you to treat property as just a collection of characteristics, and estimate the price of those characteristics individually. 

The Property Assessor's office is nearly always the legitimate source of information for identifying all characteristics, especially bed and bath count of a respective property. 

Often credit can be put aside when tenants have other strong characteristics like a high paying job, and long rental history, with glowing recommendations from both employer and previous land lord. 

@David Smit"Where imposture, ignorance, and brutal cupidity, are the stock in trade of a small body of men, and one is described by these characteristics, all his fellows will recognise something belonging to themselves, and each will have a misgiving that the portrait is his own."

And, see if there was any work or characteristics they are looking for in wholesalers.