I was walking my 2 dogs in apt complex. 2 dogs broke loose from owner & charged us, one was pit bull. The pit chased my dog over bridge in our complex & attacked my dog. When my dog was trying to run away, her collar came off. My dog needed 6 staples to close the wound. Pit not injured.Next morning, we both reported incident to landlord. Landlord said since both dogs were off leash, it's not their problem. Was told it was domestic issue. They have breed restrictions & I mentioned that at least 6 pits are on the property. I told her I no longer feel safe. Can I break lease for landlord not abiding by their policy: "must remove animal from premises if we receive "reasonable" complaint from resident."