DO YOUR HOMEWORK BEFORE BUYING!! I can't stress that enough. What kind of guarantee does the breeder offer. Do not accept oh, All bullys have that. They don't. Get references of previous purchasers and Call them and ask them about their dog's health and temperament. Make sure you take your pup to a Bulldog vet right away and be ready to return it to the breeder if any palette or joint issues show. If you have even a little issue with the joints you'll have a big one before all is said and done. Find out who the breeder's vet is and ask about the parents health (both parents if possible) even if it means long distance calls.
I don't want to be an alarmist but after dealing with a walking vet bill for 8 years, I'm more than a little gun shy.
Read everything about bully feeding and foods you find on this site. It's got quite a lot of good information. Also read as many of the threads as you can. It will be a great education on what problems bullys can face and how folks are dealing with those problems. Good luck.