good luck!1 however i have never heard of a trainer charging for gas..... have you seen her in action with other clients? have you called any of her other clients to verify her training? have you verified with other clients that she wont be jerking your dog around with a choke collar or using any type of punishment training(choking, ecollar,hard handed training)? be VERY careful who you have touch your dog, as the wrong handler can ruin a dog even more.
and dont forget, you cant fix genetics, only manage them....