This is a simplistic statement and it ignores the fact that, as I stated previously, those people were buying negative amortizing assets and gambling on appreciation.

Zillow uses a simplistic data feed from Rent Range. 

As a Raleigh resident, I've been thinking about the impact it would have here and, while my back-of-the-envelope calculations are VERY simplistic, I think the effect would be material.

I know this sounds simplistic but everything begins with a plan.

That way you'll be able to judge the opportunity for value add.Similarly, saying that 50% or more of your gross rents will go to expenses is simplistic at best.

When you do those interest calculations, you neglect that the 10 year note model costs you $72,000 over 10 years in potential cash flow (very simply multiplying current monthly loss times the number of payments, I understand that this is overly simplistic).

Cosmetic fixes are simplistic but yield big results.

In it's most simplistic form, a COC ROI of 20% means that you will recoupe 20% of your upfront investment costs each year so it will take you ~5 years to recoup 100% of your investment (100%/20% = 5).The way to think about what would be an acceptable COC ROI in real estate: the stock market, on average, generates a return of 5-7% annually so if you're going to invest the amount of time in resources it takes to be a real estate investor, you want to make it worth your while and generate a better return than the stock market.

This is kind of a simplistic answer, but are you getting $615 a month in interest on your savings?

8% for selling costs is what I tell people for a good round simplistic number.