Ah ok. That changes things, but it also brings up other possible issues like power going out. Back when I was looking at locks, I thought about putting a lock box like this hidden somewhere in case my smart lock ever died and putting a key in it. That way, there is no possible way to get locked out.
Looks like there is slight DIY option called "electric strike". You could look into that. Not sure how it'd handle changing access codes for new guests though. Have you read about what other AirBnB hosts do? There's got to be a commonly used solution
You can also get them like this where the loop goes securely over the doorknob. That way it's not permanently installed anywhere and your landlord has nothing to say about it.
Mine were $30 each, the heavy duty real estate agent ones.
These:
https://www.amazon.com/Kidde-AccessPoint-001166-Portable-Titanium/dp/B000CEMQLK/ref=sr_1_10?