Hi Mike
Thanks for the quick reply.
There's no doubt mortgage is debt - But the ultimate purpose of the breakdown I provide on the site is to give people an idea what the cashflow might be. Many of the factors you mentioned are valid, but it would be hard for me to estimate since the cost would vary significantly from investor to investor. For instance, many of the investors I have worked with in the past few years, have managed their own properties combined with purchasing a home warranty policy for the big stuff. I agree that a value has to be placed on the time spent by the investor managing the property - but there's no method for that to be estimated with reasonable accuracy - some people value their time more than others. We try to limit capital expenses by purchasing relatively newer construction homes.
So I guess what I'm saying in a nutshell is that the breakdown is supposed to be a starting point upon which investors can build their own figures and estimations for costs. But in our experience with multiple homes, our cashflow estimates have been accurate within 40 dollars or so.