Please do not take this the wrong way. It may sound blunt, but it isn't meant to be mean. To answer your question about how you can make sure they are not a backyard breeder, unfortunately the answer is you cannot. A reputable breeder would not look in the papers or for any dog in the neighborhood to breed with their titled dog. They will already have contacts in the world of dogs and know what traits they want in the dog (either physical or temperament wise) that they are going to breed with their bitch. I am not saying that Oreo is not a wonderful dog, nor that you do not deserve a way to make some extra money. I am just saying putting more poorly bred dogs on the street is not the way to do it. I am sorry, and I will add you to my prayer list for both better health and financial security.