This is expensive from an initial capital and maintenance standpoint and I've been on the hunt for a better way.One option that I've found is installing BTU/Flow meters (Istec 4440) on the supply and return lines for each heating zone (one zone per unit).

Most “wholesalers” are inexperienced, lack specific real estate knowledge, and have little or no capital.  

(Net of capital gains tax and NOT including dividends.) 

YOU are the investor/LP/capital provider so whatever YOU deem appropriate is what matters.

Thus, your profit margin is lower (than the all-cash offer), but your ROI is higher.Putting more than 20% down might reduce your monthly payment and debt-to-income ratio, but it also ties up more of your capital, limiting flexibility.

@Bliss HuWith that amount of liquid capital at your age you are going to be just fine if you avoid "big mistakes".  

Negotiated with a residential agent and purchased from a large capital group in the Des Moines, IA metro.

If you have a strong foundation with capital aside it's easier to stomach.

Are you able to take capital loss on taxes and if so how does that work? 

Do you have any capital to use or will you have to use creative?