Aircover is not real insurance, it only covers damage that a guest does, and only then when Airbnb decides you deserve a payout. 

Options - collect full payment for the 3 months up front and lower the deposit to secure against damages only, require insurance.

You can often uncover major things with a little research before you view the property - Ages of appliances, HVAC system, foundation/cracks, plumbing leaks, small electrical things (bring an outlet tester), signs of previous leaks, termite damage etc.

Now, I'm imaging a scenario when every one of these tenants move out that I'll be paying their entire security deposit + interest even if there are damages beyond normal wear and tear. 

Destroying the house calling board of health for tenant damages and literally every little thing creates huge expenses.

Are landlords required to give photos to tenants of the areas of damages / lack of yardwork / etc or just an itemized list of the deductions?

There can be surprises and damage to the property. 

Renting a home that is furnished would certainly mitigate damage done to the house with move in/move out.

There was even one exceptionally kind Bigger Pockets member that seemed to know a lot about health and physical activity that we even chatted on the phone afterwards and he gave me some good pointers.  

How affective are physical mail cards with deal machine?