Do you mean Luvstruck Yorkshire Terrier in Michigan
I have never heard of them but I did check out their website, I see no red flags such as breeds for smaller puppies, or words such as teacup puppies, baby dolls, stay away from any breeder that uses these words, they are not reputable. This breeder sounds trustworthy in my opinion.
LuvStruck Yorkshire Terriers of Michigan - Love at First Sight!