There are many people enjoying this late surge in pricing, but it will change, and you need to PLAN for the worst case scenario.

And make sure it works while leaving yourself a conservative safety margin in case your solar generation under performs for some reason (say weather) and their usage suddenly increases (say they buy a hot tub).

Now if you have 20+ units that cost is suddenly spread across a much greater pool (and larger cash-flow) so it doesn't sting.

"But what if there is tons of foreclosures all of a sudden", simply put so what.

Then there was the incredible beauty of NZ for 2 week jaunts with the Uni Ski Club, skiing in shorts & 90cent jugs of beer.If things were suddenly different here, I would be back in Australia !!! 

So suddenly they become sub-prime borrowers stuck with a high dollar prime mortgage.

I saw one guy who managed grocery stores for seven years, went through some course with another well known syndicator and suddenly, boom, he is raising a fund to buy apartment buildings.

If you get a rent roll, profit and loss, leases and monthly bank statements that shows the payment history of the tenants, there is no reason to believe they will all of a sudden become bad tenants. 

Even though numbers are not that bad why display them all of a sudden? 

It won't matter if Zillow joins REALTOR or not, they already have the lions share of traffic and if they suddenly get blocked I don't think it will stop them, it will be a death for REALTOR as their brand is no longer valuable.