I am sorry to hear of your losses. I think that the RIGHT Havanese would be a very good fit for you!
My puppy, Tillie is 8 months old now and because of waiting and find the right dog at the right time, she is just perfect for our family! I do have to admit that her parents were not OFFA registered for health testing and I am very thankful and blessed that she has had no health issues. But, if you can avoid those $500 puppies, I would strongly recoomend waiting and going with a breeder who health tests, or at the very least, GO and see where the puppies are born and raised. I did this and that is why I felt very confident in making the choice to add Tillie to our family. I met her mom, dad, grandma and aunt, all living in the home with the breeder. So, make sure that you are 100% sure of your desicion about a certain breeder. Then from there you can start waiting and looking at puppies.
My Tillie is the sweetest thing, she is cuddly, she does love to lay on my lap/legs on the recliner with me every time I sit down! She follows me most everywhere, is incredibly smart, sensitive and funny. She is in LOVE with our cats and sees them as her best friends in the whole wide world!
We got Tillie at 14 weeks and felt that it was a great time to get her. We actually didn't find her until then, so we couldn't have gotten her any earlier! LOL At that age, she was already sleeping through the night and potty pad trained for the most part. We trained her to go outside right away and after about 3 weeks of watching her like a hawk I introduced the 'potty bells' (a cheap bell from the Dollar Store!) and within an hour she was ringing them (and ringing and ringing...) to go outside to go potty (or play or harass the cats, or eat some leaves..) she hasn't had an accident in the house since the end of October. You just have to WATCH them and give them a way to communicate that they need to GO. NOW.
In my experience, Tillie was very easy to housetrain and although she still "steals" everything she possibly can from the kids room, she brings so much joy and life to our family and we can't even remember what life was like before her!!
What area are you in? Maybe we could reccomend some breeders for you to check out??