We had just a Yorkie and a Maltese when we decided to get another Yorkie. CoCo was already almost 9 months-old when we got her and wee wee pad trained so we didn't have to go through the whole potty-training stage again. I have to say that getting a third was a great thing in many ways because our Maltese doesn't like to play much and our Yorkie needed someone who would enjoy playing more.
It is more difficult to take them places when you have three and it is more expensive all the way around BUT the joy that CoCo has brought outweighs all that. We do have our problems with her such as agressiveness towards children, which we are working on and we have had to stop letting her sleep in our bed because she was peeing in the bed a couple of times a week. After doing some investigating we realized that that she was 'marking' her territory in the bed because she has become the alpha dog. We tried the diaper thing at night but she's like Houdini and was always able to get out of them!!
I love having three and I wouldn't change a thing but just remember that with three there will be a bit more work and expensive. But it's it just another one to give you sweet Yorkie kisses too, right???
