Halp Help me pork my next dog

I've been reading threads on a Presa forum for the last week. That's where a lot of my confusion came from. I posted a thread today asking for advice. There are plenty of breeders out there that I could simply go with right now, but I really want to avoid puppy mills.
that's the hard part about findng a good one far away from you. Without scoping out the grounds you have no idea who you are buying from. Some mills have viewing rooms far away from the mill so they can sell the idea that they are one of the good guys.