Armed with that data you can be standing on a stronger footing when you view the property.  

Initially, I thought this price was way too high, but the market data is great, and if I could get rents to $200/month, it seems there is much upside. 

What decision are you trying to make with the market research data you are trying to gather? 

I question the reliability of the data sources though.  

Use property records or old MLS data to understand how big the house is, number of bedrooms, baths, etc.

There must be some money in these re-marketed mls deals or they wouldn't be selling them.I've never seen a wholesalers deal that I'd actually consider a good deal in Orlando, but that's probably because I've not yet met a legit wholesaler.

I've met a few interesting folks there but I would be surprised if many knew about BiggerPockets.

I am on city-data a lot and I had no idea it gave out owners names.

I'm looking for data regarding loan delinquency rates at the state level.

Find out how you can place yourself in the middle of this data flow and cross-reference decedent info with real estate5) Pull death certificates and cross-reference real estate.