Yes! Dogs must be on a leash in the lobby and outdoors for your safety and the safety of the dogs and others. Furthermore, while you have your dog, it is your responsibility to assure your dog is controlled and secure on a short leash. If your dog harms another person while in your possession, you could be liable for damages to that person. It is very important that you discipline and restrain your dog, especially on leash. It is not uncommon for dogs on leash to be leash-reactive. If your dog is leash reactive, don’t panic. It’s a very common problem and a trainer can likely help you learn to curb the problem of leash reactivity.