My understanding was that your concern might be the smell of decomposing rodents in the wall cavity and not the smell of the poison itself? Anyway, I am not an expert at all on these issues and dread the day we may be faced with a similar problem (we do live a dockside development…) but would have thought the management company a good place to start, and sooner rather than later. And no, it is not the first reported incident of its kind, as a search of this forum will testify, although probably a first for the West Block.
Good luck with getting rid of your suspected infestation.
10, 2 RQ