Hi Devaney,
Welcome to you and Kiya
Good luck on your journey together. That sounded so sweet.
Sorry about your landlord but good luck in your move.
I don't know anything about allergies vs colds but I can suggest
a product called petzlife for her teeth.
www.petzlife.com should explain how it works. You can use
your finger to apply it and not worry about the brush until you
get Kiya use to going into her mouth.
Would love to see pictures of your pretty girl.