Hi and welcome to YT. I would talk it over with the vet about Milo's shots. Unfortunately it doesn't sound as though the breeder would have kept her up to date so you may want to ask your vet if you should do a full bloodwork up and start from there.
So glad that she found you and Kiki. She will be so much safer and loved. just have patience and give lots of hugs and Milo will come around in no time. She is a beauty! Congratulations on both of your babies.
