I've tried to research Allentown's population growth and patterns, and gotten mixed data.

You can find more details here (note that the figures are quite old from this link, so Jon S. must have a more recent post or data to compile  https://www.extension.harvard.edu/inside-extension/how-use-real-estate-trends-predict-next-housing-bubbleInteresting theory.

The building is 75 years old so you have to know if there is any major deferred maintenance.Last but not least, it is advertised as 12 units and LoopNet's property data says it's six units, so you need to make sure they have not been split in half without proper zoning and permits.Guess that's it for my ruminations!

Click Here for DFW Housing Data, from TAMU Real Estate Center for Market Research

If they can't even schedule a call, don't answer your questions promptly or with data-based info, don't even have an office for you to visit, or don't arrange a satisfactory tour and visit, then you kind of know everything you need to make a decision.Regarding the equity giveaway, you should also not be buying from a turnkey operator who is selling above market.

I don't think there is any better behind the scenes data for a potential investor who wants to see lots of deals without practicing law.  

(They are a division of Data Comp and can be found on Data Comp's website.)

I use them constantly to find the actual data source for probate, code enforcement, sort by type of property, lis pendins, zombie properties, power of attorney, divorce, evictions just to name a few. 

You could also check out the city data forums.

I told her what I had been thinking based on listening to and observing the data that some of the countries MOST brilliant economic minds are quietly saying in closed door meetings.