AirBNB asked to provide certain evidence, such as doctor notes , to waiver penalty  of $180 per reservation. 

The seller has doctored #'s.

If a doctor came up with a new treatment to eradicate the common cold and out of 3000 people 2999 died and 1 person was cured, would you conclude the treatment worked?

Anything, from doctors to lawyers, from poorly taken care of apartments to mansions, quality costs more money.

What is his job and his doctorate degree? 

The big, golf course type, Rental Apartment developments, along with the 55 and over Communities, Doctors with 100 Doors etc. have Managers who demand the First, Last and Deposit and go after you with Lawyers to file for a Judgement and ruin your Credit and next Rental Apartment application.

Fast forward a few weeks later, she states to me that her back has been hurting since then and after seeking advice from her doctor, they suggested she see a specialist.

I paid for my own education along the way (I have a doctorate) and have been able to be the bank of choice for family members (0% interest). 

Just like your doctor, your mechanic, your grocer and every other business.

When is the last time you got a hold of your doctor or attorney  on the first go-around?