It is human nature.

The naturally thing that comes to mind is, how does this ROE calculation relate to ROI/IRR (both in practical and mathematical senses) and should one metric be considered more strongly over another in certain situations.

They will have to adapt, a natural business occurrence, or face tough times.

This naturally includes what some consider C/D zones.  

Hi Cashmere -  As an FYI, you'll get many more responses if you give the nature of your question in the subject line.

On the other hand, I didn't know how expensive an eviction is, and how often it can happen in a pure cash flow market, more geared towards working class tenants... who are also higher maintenance.A lot of local investors have no way of knowing these things in advance when they first run their numbers so they naturally assume that vacancy/maintenance reserves will be the same for both sets of properties.

The internal need or instinct to be in control of your domocile is not only human nature, but living nature...

If your goal is to learn about yourself and have beautiful self-actualizing experiences you can accomplish that goal without spending a lot of money.To wit - I may love hiking, but I'll be darned if I'd want to spend thousands (or tens of thousands) of dollars getting a degree in it in order to better know myself and learn about a field I find interesting.

They write beautiful prose online on their best business practice and disclosure.

Beautiful listing!