Some of the data points I'm evaluating are:Population growth rateUnemployment rateJob growth rateWage growth rateMedian housing priceMedian rentI'm wondering where to find the best online data sources.

You should have evaluated all of this up front. 

So if the past couple of years shows that they have had active lines of credit: be it a car payment or credit card, etc. and they've paid on time along with no evictions or bankruptcies then I would continue to evaluate them with whatever other criteria you have.

In progress.

I work with commercial renovations at my job so it felt like a natural progression.

To evaluate a multi-unit residential purchase in Florida, what is a good rule of thumb (as a percentage of purchase price) to calculate closing costs for the buyer?

Please keep us posted on your progress.

- I don't see a utilities bill on this evaluation anywhere.

That way I could easily see profits per unit and admin expenses/total business health all in one place while still keeping all of my documents, tenant leasing and contact history, etc. right now I am just too spread out using Quicken, Tellus, Evernote for document storage (receipts, bills, quotes, etc), and OneNote for process/procedure documentation (my eMyth planning In Progress).

I had a preliminary inspection to evaluate the efforts and provide cost estimate to fix the issue.