Maybe one day I can sell this system, but right now is for my use and under testing.

Who is going to change the air filters in the HVAC system or mow the lawn?

Once I have a strong system set up, I don't want to dedicate too much time to real estate, though.It's also important to note that I'm a US citizen who wants to invest in US real estate, but I live abroad.

This includes operating your heating and air-conditioning system as appropriate to reduce humidity, using appropriate ventilation, limiting evaporation of water, promptly removing any visible mold, and immediately reporting to us any leaks or other water intrusion into your apartment or any visible mold that you cannot remove.

The processor keeps making mistakes with the wire with spelling errors etc and now they say the two software systems Bank and investment company cannot integrate.  

We operate in a broken system that is ripe for abuse and fails to protect us.

So, the solution to the problem is built into the system.  

I needed $35,000 for a new heating system so the bank gave me $28,000 (80%) in a business loan for 60 months which has no prepayment penalty.

Every system you try will have flaws or you'll salivate over a feature that shows up in other software.

Most landlords are willing to do cash for keys so if they don’t accept that, they’re trying to game the system.