So sorry for your loss, I know how you feel I lost 4 of my 5 girls to a dog attack very similar situation not too long ago. Dog jumped our fence, tore open the run and got the girls just as my husband was coming home. I just pulled up too with the kids and heard hubby yelling I knew something was wrong, opened the back gate and found the situation, dog ran out but I knew who's dog it was. We did get some compensation but not what the owners promised, I called 911 and they sent animal control immediately. We live in the city as well. Animal control told us we could have shot the dog, it is legal since our chickens were being attacked and if the dog comes back to shoot it, because there isn't much they can do but try to work with the dog owners. I live in VA and our city code states dog owners are required to pay $10 per bird not much especially if they are your pets!! Code also states that if it happens 3 times dog can be relocated out of state to another state that does not border VA or can be killed. We were told we could press charges in civil court if we wanted to! KEEP calling animal control and see if you can find anything in your city code. Tell her you are going to take her to court, that is crazy that she didn't sign the check, I would take it back to her and ask her to sign it. If that dog came anywhere near my yard it is gone!! Does your city have a leash law? If so EVERY TIME you saw that dog loose call 911, it is a danger to your animals plus kids (maybe not but if you keep pesting them they have to follow the law) I wish you all the luck