Dummy cameras are never a good idea because they create potential liability for the association. When owner, renters, and visitors see dummy cameras, they often believe the premises are being monitored, and they are reasonably safe. If a serious crime takes place, it is very likely that the association will be named as a defendant, in which case it will have no video footage of actual events. It is far better for the association to invest in real cameras and video surveillance systems in order to both deter crime and effectively handle such incidents. You can read more information in this article.