@Fernanda843 It seems like a bit of a grey area, but consulting a lawyer is a good idea.
I say a grey area because I think the intent of the ordinance is to eliminate entire homes off-site hosting,
as those are the situations that lead to parties, guests disturbing neighbors, and a steady stream of strangers coming and going, which makes residents uncomfortable.
The ordinance seems to assume that all strs are either home shares, or these off-site or perhaps even out-of-state host entire house listings.
So your situation is one they haven't accounted for- an entire unit, but with the host living right next door, in the same building, able to keep an eagle eye out for bad activity.