I'm so sorry to hear that Capone is not perfectly healthy for you (and for HIM!). That really sucks ...
As your vet probably told you, in FL it's illegal to sell puppies less than 8 weeks old, and they have to have a health certificate (they're good for 30 days from the date of issuance). Shots can be given at home by the breeder. Tail docking and dew claw removal can ALSO be done by the breeder if s/he so chooses, although they're usually done by the professionals.
However, I'm not sure if the same rules apply in the case of a pet owner who happens to breed their dogs, versus the "professional" who (at least tries to) make their living from breeding dogs. It becomes a "grey zone" once they start charging for the pups.
I hope she will at least refund part of your payment. My understanding is that they (the breeders) are not legally responsible for vet bills incurred by "defective" pups; they can be compelled to return the fee, but then you must return the pup. You cannot have both the money and the goods. What they do with it then ....
But the damage is usually done the minute you set eyes on the pup. He's
yours, and you'll do what you can to make him well. It's like a human child - no guarantees. I just hope that the "breeder" checks her parent stock to ensure that they're not passing on a genetic problem to their offspring.
I hope everything goes will for Capone.