Third party servicers give an added measure of security.You can furnish all of these conditions or none.

We had to do onsite training and I literally cut them a length of ropeI told them walk up to a tree  At DBH  ( Diameter at Breast Height) put the rope around if you could put the rope around and measure. 

The storage tanks we use have been meeting these performance measures for years now. 

So my issue with the Zillow chart is that it only measures gains from 2009-2014 when nearly all housing markets were in recovery mode.  

Its all about measuring ROI and Risk vs.

The problem is it may take 5+ years of under performance to get back to the actual historical rate of appreciation as measured across all timelines with different ending points.Projecting short term trends into the future is called recency bias and it's a classic mistake that many investors make.  

It provides readers with a basic grasp of how income property investments really work and serves as a handbook for understanding essential financial measures related to real estate investing.

You can google it online to see exactly how but from what I remember it was basically dig a hole, fill it with water, then sit there for an hour and measure how far the water drops every 15 minutes.

I let my tenants know that this is how I measure usage and it is written in the lease that any water usage exceeding 5 cubic feet per person, will be billed to the tenant.  

Buy and hold investors that are truly successful measure their success over years and years 10-20 in my view.