Inspection found failed septic system ($15k replacement) which seller paid for. 

Which is to say, you can make a system work, as long as they don't change the rules.

As others have said owning the system via a cash purchase or using one of the many low-interest loan options out there are preferable methods than leasing. 

@Dennis Juanir if you are willing to share, what did the numbers look like at the start of the project versus the end? 

The coolant (Freon system) cost so much that it was more economical to just upgrade the whole system.

I'm sure it is likely high because she is inefficient and doesn't really have systems in place to manage a project like this. 

Then take that system and dump 10's of thousands of dollars into it so $10,000 = $20,000 and so on. 

There is a system we use called RUBS which is RUBS or Ratio Utility Billing System is a method of calculating a resident's utility bill based on occupancy, apartment square footage, number of beds, or some combination of factors.

This proves why the state messing with the property tax rate is not going to make much if any difference when they can just pick whatever appraisal value they want out of the air.There is a local newspaper columnist that is advocating that everyone dispute their appraisal and go to the review board in order to break the system.

Flippers only want to flip to make quick cash, find a buy and hold investor [look to existing landlords versus flippers].