Welcome to YT, princess_tink! Of COURSE we'll be gentle!
I've never had to locate a breeder, so I'm not the best person to give advice, but I have seen a couple good links posted when others have had your same question.
The Yorkshire Terrier Club of America has some good information and a code of ethics for breeders and owners. Check that out here:
Yorkshire Terrier Club of America
And one of the breeders who posts here has what appears to be an excellent overview of how to choose a pup. Check it out.
South East Texas Yorkies - Choosing a Puppy
Good luck.
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Mike ~ Doting Dad to Jillie, Harper, Molly, Cooper, Eddie (RIP), Lucy (RIP), Rusty (RIP) and Jack (RIP).
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