On those rare occasions somebody gets busted, it's probably worth whatever the piddly penalty is.I don't know any reliable way to get calls to actually STOP once they've started, but you might consider getting a new phone with a new number, and don't publish that number.

In addition to City-Data, there is a possibility that the government in that area publishes neighborhood data as well.

Now you look up the tax parcel ID on your county tax collector's web site and you will find sales history, property address, tax history etc. 

@Austin Petrie That web site looks like a good resource, and if I am looking for a loan I will add them to the list.

If you charge them a screening fee, you generally have to send them a letter.One more thing, I don't publish a minimum credit score for acceptance.

These parameters change regularly; Fannie Mae publishes the rules online and banks who offer conventional mortgages operate by their rules.  

According to a spreadsheet that I have downloaded from the web, the cash ROI is -9.48% and the yearly total cash flow is -5K to -6K for twenty years or so.Does this analysis mean that investing in a studio as a rental property in these Queens areas is a bad idea?

Does anyone know of either a web-based firm or one in the West Texas area?

I've actually started looking into some of the rougher neighborhoods like Kensington (I know that seems radical) as I have been following Philadelphia's City Legislature and how it will affect the culture of that area (check this article published last month- https://billypenn.com/2018/10/18/kensington-homele...) 

Has anyone figured out a way short of custom web crawler scripts to plug into some APIs and clean data systematically?