Welcome! We love the big boys!
Yes, YT has made me feel at ease with Ozzie weighing 14 pounds. I can't tell you how many times I have been quizzed as to his "mixed" breeding. (He's NOT ... he's all Yorkie!) And then thought either a liar or an idiot when I insist he's purebred.
I nicknamed him "Moosey" when he was a baby because I thought for sure we'd have the world's first 40-pound Yorkie,

he grew so much that first year! Now that he's 10, I can only hope he's done. He has gained a pound, however, since being neutered last year.
I think this parents were 4 and 5, or 5 and 6 pounds, nowhere near his size.