Our neighbors once had a big yellow mix of a mut. This dog had already chase our pups back into the house, we called animal control and nothing happened. "Until he bites someone, nothing can be done!" Well one day my mother and I were getting out of her van, and this dog came out of know were. Teeth bared, ears back! We took off running for the door screaming for my dad. My mother made it to the door about the time, my dad opened the door with the gun. I was between him and the dog, so I just fell flat on the ground. He shot and killed the dog as it was mid air to attack me. We called animal control again and told them what happened. They came out and took the dog to the owner. The owners had been warned about the leash law earlier, but refused to do much with it. They tried to have my dad arrested for animal abuse, but animal control just rolled their eyes.
Call Animal Control and file a report about this. If your having problems with Animal Control, call the police and insist on an officer to come out and file a report. Get something on record showing your concern about this.
LOL the dirty side of me, says to find out who her homeowners insurance is and put a little bug in their ear. I willing to bet, that they might have something to say about her having two such dogs and one being a biter!