Unfortunately, a lawyer probably would not take the case. First, under the law, no matter how much you loved your dog, the law treats animals as objects, and as a result, even if you won, you would only be entitled to the replacement cost of a new dog. Additionally, to win such a case, you would need expert testimony from a vet or other scientific expert. Simply because the dog food was recalled does not make the seller liable. Also you cannot receive damages for what might have happened to your wife and son, if it didn't happen.