If you want a small to medium-sized dog with short hair, some possibilities are Italian Greyhounds, Pugs, Boston Terriers, Miniature Pinschers, Manchester Terriers (toy and standard), and Toy Fox Terriers.  If you wouldn't mind some grooming there are Tibetan Spaniels or Tibetan Terriers.  Whippets could be a possibility as long as you could find a safe, fenced area for the dog to run once or twice a week.

Generally the main problem in apartments is barking.  That problem depends partly on the breed but mainly on the training given.  Yes, small dogs tend to be yappy but if you don't treat the dog like a spoiled human infant and spend some time giving it the training and discipline it needs and desires, the problem is manageable.

A dog wags his tail with his heart.

sorry

  ~yours, daisy may~  

Not trying to yell at you or anything, but I just want to say that yodeling is NOT something you want in an apartment. I heard Misty yodel a while back, and it was one of the WORST sounds I had ever heard in my life. Her howl and bark are nice, but not that yodel.

Don't have anything to say about the Havenese, if you don't mind the long fur, then that might be a good choice.

          
  Misty and Jaxon                Heidi and Bandit

Bandit-14-16 year old male Australian Shepherd/Cocker Spaniel/Dachshund.
Heidi-11 year old female Chow Chow/German Shepherd.
Misty-4 year old female half Siberian Husky, half German Shepherd.
Jaxon-1 year old male purebred Siberian Husky.

I don't mean to be a bother, but have you seen this girl? <3

I know you mentioned a puppy, but have you considered adopting an older dog? We had the opportunity to help someone find  home for an older Dalmation. Nothing was wrong with him, he just needed a home due to the situation. He is doing great in his new home. Someone may point out that you may not have the older dog for much longer or that there are costs for medical problems, but that can be said about a younger dog also. 

Just a thought.