Nolo: When a Dog Is a Lemon
What to do if you get a sick animal from a pet store.
Pennsylvania: Dog Purchaser Protection Act
The state's puppy lemon law, with information and FAQs for veterinarians and dog purchasers.
Puppy Lemon Law States
Overviews of the laws in several states, with pros and cons of each.
Sick Puppies: Disclosures and Lemon Laws
What to do if you buy a sick puppy and links to many states' lemon laws.