They have straightforward eviction processes, no limits on how high rent can go, and not many rules on money kept for damage or how long someone can rent.

Again 20-30% is fair.I have an almost 100 year apartment building where I pay some of the utilities. 60% is a fair estimate and it's often more than that.I have a couple of older houses in 'bad areas' where the tenants regularly trash the property causing thousands of dollars in damage and move out in the middle of the night.

All damage that has been done to our place has been done by AirBNB guest.

I've also had major leaks that luckily have just flooded basements and not caused too much damage.  

So, I am not sure how I would pursue damages and unpaid (2 months rent) if I wanted to.In hind site I should have kicked them out, but I didn't - lesson learnt.  

Very certain we overpaid, but it was a dire situation where the old one broke and had caused water damage and the tenant didn't notice for a month... 

You are going to want to file a claim against Person B and hold Person B accountable for the damage.

While this isn't common, I have know people that bought their first rental and when tenant moved out, had caused close to $20k in damages and skipped town after one year of living in place.  

Is there any Business Owner Occupied Element or is a cash flow investment3.

I offered a reply asking about damage to gutter.