Cash flow, principal pay off and of course appreciation are all a function (percentage) of your portfolio value. 

I have helped dozens of people buy and sell functioning homes.

I believe most investors are better served hitting singles locally than swinging for the fences (and usually missing) in outside markets they don't know and with far less control over the day to day functions.

Some consumers have never liked it, but things still function perfectly normal in those states.

Basically look at potential failures and determine their impact.Use the lookup function on my name and What happens if you die?  

I'm an agent in Oklahoma and we have a Seller Finance addendum written up by the state real estate commission that functions just like an FHA or Conventional Loan addendum to a sales contract.This is, of course, standard when you purchase a home with bank financing.

I personally think it is a function of the market cycle, and real estate is where money is currently flowing.

It's a function of the market cycle.Great postGino

Is it functioning properly?

Use the lookup function.