For clarity, I still have a box of baseball/football cards as I idealized Bo growing up. 

There is no excuse for such a high vacancy factor of 33%.

I'd also highly recommend building a spreadsheet to help calculate and factor in ALL costs of the project such as closing/double closing costs, holding costs, rehab costs, staging costs, and resale costs.

Ideally I would be selling the land to the government, but they  might be willing to sell the building to me.

Ideally, you should consult with both parties.

The plans generally base the amount you owe per month on the income and family/household size with a discretionary income factor.

I know that the method I mentioned is riskier and not in any way ideal, so hopefully, all this due diligence will pay off and the next deal won't have to be like this. 

Lea, Probably best to factor that cost in and get a contractor to look it over as soon as you can.

I didn't hire professional inspectors in my deal, but only brought over my regular repair guys to help inspect (structural, roofing, etc)as for management software, I use easy self storage too and I agree with comments above that it's a good fit for small/medium facility given consideration of their cost vs. value. some others like sitelink and storEdge have quite more cool features but you pay for that premium. another factor for me to go with easy self storage is the competitive rate from merchant account provider they partners with that you use for your website's credit card processing. their call center feature is very nice to have additionif you need that.

Ideally you bring a trusted GC with you to offer his professional opinion on the matter.