Wow, I asked basic ?s, and the fact you came unglued shows me your motivation is money.
Papers don't mean breeding quality, first off.
The FACT that you think a one year old should be bred is mind boggling. As a large breed dog, he is still a puppy and not done growing himself.
Your dog, you'll be a backyard breeder, no thought to anything but cash.
Bully breeds especially need PROFESSIONAL breeders, as they will all suffer the consequences.
BTW, current clean bill of health isn't the same as genetic health testing.