Here’s my two cents. If you can change the title of your thread to something along the lines of “Boston Terriers- What should I know before breeding them”, then I think you will come across better as someone who is trying to learn rather than as someone who only wants to maximize puppy sales.
There are a lot of things you will need to learn, and making your first question about max litters per year colors people’s perception of your intentions. I actually think you have received some kind and helpful answers, which are very toned down for the types of responses this topic usually brings.
Good luck in your learning. The more you learn, the more you will adjust your goals. By the time you are ready to purchase a breeding female, you will be a more experienced “dog person”, and who knows? You might even discover a different breed with fewer genetic difficulties to work around. Or, if you are dedicated enough to this particular breed, maybe you will become the person who works to improve the overall health of the breed.
My daughter recently bought a French Bulldog puppy. One thing the breeder mentioned was he hoped she didn’t mind that he breeds for a slightly longer muzzle. Because his goal was to not over exaggerate the pushed-in look. It was nice to hear of a breeder caring about the future of this brachycephalic breed.
Anyway, if you aren’t able to change the title of your thread, maybe you can ask a moderator to help you.