I don't know how you found the breeder. And I am not so expert.. but I would think that the key point is to find a good good breeder. I have gotten a small yorkie about 10 days ago from a reputable breeder. I started wanting a yorkine last August and it took me long time to get ready.
There are things that I tried to pay attention in terms of looking for a pup:
1. I wouldn't want a breeder that would ship the pup. (If the pup is really small or runt, and if the breeder is not worrying about shipping.. red flag for me)
2. The breeder is always available for any questions without getting annoying. And I like honest breeder... who can answer any questions or listen to any concerns.
3. I would definitely visit the breeder. I wouldn't buy a pup unless I have visited the breeder to get to know her/him. (I visited mine twice before getting a pup)
4. The breeder had never had such a small pup. So she took her to vet for all the tests and check-up. She also shared the all the medical records with me. (This was very important for me.)
5. The breeder has to be definitely honest. She/he should be able to tell you one or two things that you should be careful about. There is no dog that you don't have to be careful at all. Something to watch out. Advice on feeding.. what kinds of food... all the information about vaccination..
6. Available any time.. and not telling you something after long time.. A breeder who tells you everything up front.
At Last... I would avoid small pups!! I got one because I really liked the litter not because of her size, and I am confident to take care of the pup and have a good relationship with the breeder to ask for help.
One last thing!!! I recommend Sylvan Yorkies in PA!
And.. oh one more thing.. I should have said in the beginning.. I am really sorry about your loss
it must be heart breaking.