Hello and welcome to the forum! You should be able to find many answers here to any question you can think of..... and then some!
CKC is Canadian Kennel Club and the AKC is American Kennel Club, so a Cdn. breeder wouldn't need to register a litter/dog with AKC, and vice versa.
Grooming is a huge issue if you decide to let the coat grow some. If you keep your dog in a "puppy cut", shaved to an inch or so, then combing should be easy. You can get away with combing/brushing a couple of times a week. A longer coat will require daily combing, esp. in the "blowing coat" stage, which can occur twice in the first year or two. It can be a challenge, but if you start combing your puppy from day one, then it shouldn't be a huge ordeal. There are a gazillion tips in the "Grooming" section in the forum.
What you should do first, is look in the "Breeder" section, in the threads with advice as to what to look for, what to ask of any breeder of Havanese. There are sites to check out in regards to health testing that is important to know. Things like eye problems can be hereditary or not..... if the dam and sire are tested and results are posted, then you can check to see how they rate. You'll find that info in the 'breeer' section as well.
Good luck and keep us posted!