Sigh...
I contacted the local animal control center, and I spoke with a really sweet lady. Unfortunately, she said that because these dogs are considered "property", there is nothing that can be done to stop this mass breeding. As far as medical attention, they can't do anything unless the dogs are in a near-death situation. The only thing that she could get busted for is if someone were to visit and noticed neglect...such as deplorable living conditions, feces all over, etc. But as long as there's food & water available, there's pretty much nothing that can be done.