Also curious if they had any grounds for that. I was under the impression that if you have a camera within your apartment (looking through window), nobody shoul

Also curious if they had any grounds for that. I was under the impression that if you have a camera within your apartment (looking through window), nobody should be able to tell you no. Unless perhaps the camera was attached outside their window (no longer their apartment), in a way that could be deemed unsafe and fall off and hurt someone, whereupon the building owner could be held liable? In that case I would find it reasonable to tell them to remove it.