Denise,
You are a great mom!
And I think that it's great that you have Rambo to help her with the healing process.
I have 2 rescues---both of them benefited immensely from having the other dogs and they both are pretty well adjusted. Just give them lots of love and care---that's all she can ask for, really
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Chrissy, Izze (Yorkshire Terrier),Molly & Suzie (Toy Poodles), Chachi (Chihuahua)