Are there clauses similar to the following in your lease (apologies, don't have mine to hand so can't reference the proper wording)?
1) Quiet Enjoyment; the landlord will give you quiet enjoyment of the premises; roughly means they agree not to interfere with intended use of the establishment
2) Not cause issues to others - i.e. usually says something along the lines will not do anything that you ought to know will cause annoyance to others or cause them to lodge a complaint.
Other's here can give you better insight into the breadth and depth of meaning of these 2 clauses but taken together I believe mean as long as you make normal use of the premises and don't do anything you *should* know would cause a complaint your in the clear....
I had an argument with the landlord's agent after a neighbor complained about my cousins children making noise in the hallway when they stayed with us while they waited for the elevator (the neighbor also left their door open with only the gate closed).
He raised the complaint under the second clause and asked that we have them stay somewhere else. He relented when I pointed out the first clause and that the kids were just being kids and were not miss-behaving (i.e. they weren't yelling, playing with toys or arguing / fighting).
In the case of staying in a room in a
condo-unit, really not sure how the above would apply if your guests were subject of a complaint from other members renting other rooms in the unit. (I take it from your post your rending a room in a shared condo/apartment, not your own apartment).