It's not just the mathematical side but it's the way of thinking.

Another way of looking at it mathematically is that it will cost you 800/month, one month for the rehab and one month at a minimum to fill.

If you need a solid, no BS approach to getting more and better leads,  this video is for you.You can litteraly exponentially scale your motivated seller leads generation by technically not spending an extra dime on yo...

These are of course overly simplistic mathematical assumptions, and real life results will obviously vary. 

It is friggin Dumb Stupid and I AGAIN have proven this mathematically. 

Building the barn for those additional options sounds like a pretty significant expense that would be a challenge to pay for itself.I'm sure it's awesome to be able to say you own this property, but in the end it all comes down to a mathematic equation.

If you look at it mathematically which people on this forum would agree with, then why I pay the bank $10,000 in interest to get back $2500 in a refund saying you are in the 25% tax bracket?

It's part psychological, but also part mathematical in nature.

@Todd HajecThe simple mathematical answer is pay off the high interest credit card debt first.  

either way.. most landlords have problems because they are under capitalized and have in adequate reserves to weather a bad tenant.. mathematically of course max leverage is the greatest return..