Thank you both for your replies
I have checked the Yorkie Rescue sites and I found two that a Baton Rouge rescue organization would only rehome together - apparently the two dogs forged such a bond the organization is reluctant to separate them. The issue there is I haven't owned a pet in a while and I don't have a vet record, and this organziation won't let me adopt with proof of a vet. Are all rescue organzations the same regarding this? While a new puppy is appealing, I think I would prefer to rescue a Yorkie.