| Re: advice for a novice
Hi Randy! Welcome!
It's not about the breed of dog. It's all about finding a dog that has the ability to do the work with a stable temperament.
So, now we have a problem. Define "the work." What protective behaviors do you need a dog to perform? In what capacity?
If you need a dog to bark at unusual activity, giving you a chance to grab a phone or a gun, then any breed and almost any size of dog could work for you.
If you need a "biting" protection dog, which very few people do, then your wife has valid concerns - regardless of the breed of dog.
If you need a visual deterrent, any medium to large BLACK dog will do the trick.
If you are interested in protection sports, for competition, without the real-life protection part, you'll need a very specialized dog.
In any case, finding a reputable breeder is a chore. There are more puppy scams and unethical breeders/brokers out that than I care to think about.
1. Find a training club. (this is a challenge)
2. Find a breeder.
3. Wait for the right dog.
4. Get training!
With my last dog it took 3 years of work before I actually got the dog! It was worth the wait. I got exactly what I needed for the work I expect her to do. | 
