I too have a holding company; this might be a silly question but is this something I need to relay to tile, or they do automatically?

Post Katrina if you bought new construction for your business you u got automatic 50% day one deprecation. 

It's calculated from the booking subtotal but excludes the guest service fee and taxes but is automatically deducted from Host payout.

Enter recurring charges and automatic late fees.

Check whether there’s an overabundance of similar rentals or if newer, more modern buildings are attracting tenants away from older stock.You're on the right track by doing detailed research, but don’t let longer days on market automatically steer you away from a zipcode.

For instance I had a special case where I billed the tenant an extra expense monthly on top of the automated rent collection, so I add it as an expense and it would automatically email them and notify me when it was late of course.

You set up iCal and it's automatic.  

Automating your finances by setting up automatic payments and using software to track income and expenses will save you time and help with organization.It's also important to manage your time effectively.

Airdna does that automatically and provides comps as well.

I don't know how the humidifiers are configured, but you might be able to put a small pump into each reservoir (search "automatic bilge pump" on amazon) and move the water into either a larger collection tank (think 55 gallon drum) or drain.