Wow ~ she will have a difficult time finding a daycare provider that will let her stay like that in their home. You have every right to be upset- you came to everyone here to find solutions to help her daughter and make a situation better. When talking to your friends who have told you that this lady is saying bad things- just that you were seeking advise to help her daughter. Take the high road like dragonlady3 said- for the sake of your business.
Sorry you had to go through this