Yes, you need to educate yourself more on backyard breeding, and stop helping out your friends who are doing a very bad thing for the dogs of this world. By your tone, it sounds like you have your mind set, and cannot be changed, but believe me, you work in the `pet business', which is a very lucrative trade. And it should not be lucrative for the reasons above. You may be doing all of these things with vet checks and so forth, and that is all well and good, but what you are actually doing is perpetuating a massive, massive problem in the dog world, and if you became more informed I'm sure you would stop. If you really care for animals, you would not be promoting this. If you continue to promote it, all I can say is that you do not really care for animals, whatever reasons you give to make what you are doing sound ok. It's not ok, it never will be ok. And you will get no sympathy from this site unless you are here to learn.
Unfortunately, there are those who come here who get put off by how vigilant we all are, and they get angry and never come back. I hope, hope, hope that you continue to stay around, because we're all really nice people, who just take a hard line when it comes to welfare. This board is about welfare, what your friends are doing, and what you're helping them to do, is against everything that welfare stands for. That is why we get angry - it's not a personal attack, not at all, it's just a desperate plea to teach people more about the horrors of unregulated breeding.
So, my question to you is, how do you feel about sticking around and learning more?