You/Me need to become the absolute experts on this--its your blood sweat & tears. 

My owners have my personal cell and can contact me about anything at any time.

Do you think that was more like an EULA on a cell phone, just some legal mumbo jumbo you had to sign through to get things done but didn't really believe was ever a "real" potential? 

However I've been told that emails are highly preferable because they can track the IP address....anyone could pick up someone's cell phone. 

I already live out in the country so cell service isn't great, but then they lost a number of cell towers and since internet was down just about everywhere, the cell towers were overloaded.

But we have a lot of interaction with guests before they ever arrive - we require a photo ID of whomever has booked our house (and the name and info has to match the booking info), a working cell phone number that we will send a test message to by text to confirm it belongs to the guest (or is at least in their possession), and we converse with them to let them know what to expect from us (and if we have any specific concerns we share those as well) - for example, this week if we had anyone scheduled to arrive we would be discussing the incoming hurricane. 

Investors are a little bit like white blood cells in a city - they clean up the properties nobody wants or is able to take on.

Shoot me a message if interested and I can share his cell so you two can connect. 

My cell phone number could not be any more public!

They're not the ones who sweated blood into the place, so no offense to management companies, but I can't see going above 10% or 15% at most, assuming nothing major happens etc.I will look into those calculators, thanks, good idea.