[B]In Florida, it is against the law to sell puppies under 8 weeks of age and without a health certificate. In the case of the yorkie...10 weeks and so on..many people keep yorkies longer than 8 weeks to make sure they are well on their way (healthwise) and adjusted. Puppies start to cut teeth and start biting their mother and this is why she's being stand-offish with them. The other weeks need to be set aside to start adjusting them to their new homes. Personally, I don't like to keep my yorkies past 12 weeks because they start developing personality and it's hard to depart with them. Can't keep them all.....