Well, for starters, it is illegal for the landlord to enter the premises without your permission. And that one is enforceable.
There is a reason why we tell newcomers NOT to live with the landlord. Things get icky quickly in most cases.
Dunno if you have seen the big bus ads saying it but yes, AirBnB and other similar systems are illegal in Taiwan. I know the OP likes his house very much but as a foreigner, again, you are the skinny dog and fleas like to stick to skinny dogs, meaning that if you live in a place where illegal activities are going on, it may spell trouble for you. The mud may reach you, if you get my meaning.
I mean basically AirBnB business, but heaven forbid if any of those strangers engages in drug use of whatever. You can be deported for just being in the same abode with someone using pot, did you know that? Hence the danger.