Congrats on your new addition and good luck with the potty training. It's an on going process and I'm just at the beginning of it. I picked up some spray at the pet store that you spray on the pads or outside where you want your dog to go potty. So far it has worked really well.
On a side note, my groomer had 5 yorkies at one time and they were never completely house trained. So just have lots of patiences and clean up rags.
