We didn't build some sexy software application in silicon valley.

They can use water from the hot tub or fill up a bathtub to have water for flushing toilets.  

Plus a small cutting board and "hot plate" to avoid tenants damaging kitchen counters by chopping items or setting hot pots directly on them.Gail

She then got a message from the tenant yesterday that said: "I know the plumber came but we did not have hot water yesterday and again this morning.

A hot water heater might have a 6 or 12 year warranty, but you can expect it to last double the warranty.

Passive landlord is a long game enter anytime stay for decades and most will do just fine.Active engagement same thing enter anytime and your reward is how hard you work identifying the hot ticket at the time  access to capital etc etc..

Let's just get the property furnished, a hot tub installed, and start making some money!  

They know the tenant base, median rents of different areas, how much to increase rent each year, ranges of repair costs (ex: tenant calls and says AC isn't working, no hot water, faucet is leaking, the HVAC system goes out).

Also if you correctly read the laws in most of the states in the US and the federal statutes, creating systems as the one you are promoting would land you in the hot seat.

Utility bills can increase significantly if guests stay for months during hot summers or cold winters.