Not sure how you feel about poodles, but mini poodles would be a good size, or a small standard ( my mom's Bella is only 40 lbs). All poodles are so very easy to train, it wouldn't be frustrating at all for your daughter to try to train one of them...i grew up with them, and they are sweet dogs...easy to house train, most anyway, and smart as a whip. No shedding too. They come in a variety of colors, white, black, silver, apricot, red, chocolate...if my husband wasn't all about manly man dogs, i would have another poodle...their temperment has always been great...however, some of the toy poodles, can get snipy...after owning all sizes, i would say the Standards are the sweetest