we often call our AS the Dog's house! since they enjoy it as much as we do and sometimes spend more time in it than us. They stay and guard it if we go sightseeing where they're not welcome.
We go everywhere with them, Canada included every year. Never a problem, just bring their vaccinations and show them IF they ask...it happened only once in 4 years..
Our boy is a purebred Siberian husky not from a breeder but yes the pound. It is full of purebreds that people buy emotionally and then realize what they got themselves into. Our little girl is a heinz 57
best breed in the world!
Good luck in your dog search and please, please do not get a dog that come s from a puppy mill. Stores and non reliable breeders are filled with them. Buying one only encourages this disgraceful and inhumane practice.
Petfinder is great but why not make it exciting for your little girl and check the local shelters and rescues of every town you visit
sooner or later you're bound to meet your new family member...it may not look anything like a yorkie after all.