This USA Today article today which makes the problem of trying to mix the two (str, ltr) hit home. This tenant and his problems after the landlord decided to short-term rent part of the building. I once stayed at an Airbnb mixed with ltr and found the long-term renters way too casual in their behavior and attire.
"@Airbnb has been a nightmare for me. Their customer service literally hung up on me when I called. Here's my story. My landlord has turned 2 rooms of the house I've lived in for a 9 years into air bnb. Lats night 3 dudes checked into one room. Nobody in the house had any notice..."
The article is chopped off and there is no link to it.
This does look like a disaster. The owner should have at least made sure the LTR tenants were ok with this. I don't care for the whole renting a room in someone's house, but that's just me.
Renting a room was great... When I was 17. I would be upset and consider this a change to the lease terms.