We had Brooklyn for over 3 months in our old apartment complex which was no dogs allowed. We were very lucky she almost never barked, coming from Brooklyn NY she was used to noise so people in the hall and above us didn't bother her. But sneaking her in and out to go potty was tricky sometimes. But also kinda fun too...felt like a secret agent or something. haha But they never found out about her and when our lease was finally up we moved to a dog friendly townhouse complex. I would think a cat would be even easier to hide since they don't have to be taken outside to potty and they don't make very much noise.