Did I understand that correctly? They want to get another dog just for protection. Like I respect that they feel unsafe and if they want to do something about it, they should, but the chances of anything happening are low and if so, what happens to the dog after it? When someone breaks in, it'll probably just be that one time, but the dog needs a family forever. I don't see the point of it, especially since one puppy died and they were against pets a few months ago.
I can't really see Justin agreeing to this. Justin does not like dogs. He tolerates Winky because he's small, he doesn't have to clean up after him and the kids want him because he's cute and cuddly. Protection dogs are working dogs; there to do a job on command. That training is included in the price of the dog which makes it very expensive at $50,000 and up. It won't be a puppy or cuddly, it'll be large adult dog, usually a German Shepherd, Belgian Malinois or Rottweiler. Brooke previously said her favorite dog is the Doberman Pinscher, but those are usually only good for patrolling outside property.
Sockie was right, there can be a lot of burdens owning one. They're good dogs, but very intense and high maintenance. They need a lot of space and have to be exercised daily for a couple of hours to decrease their high energy otherwise they get depressed and bored and angry.
They need a main, alpha person to take their commands from. Sometimes they'll challenge that person's authority if they're not trained or bred well. They will follow you around all day and be under foot, which can be good and bad. They can be a little nippy. They also require a special, expensive diet and produce large feces that SOMEONE will have to pick up. Liability issues could arise if the dog accidentally attacks a meter reader, contractor working on site, or an overzealous Legend who doesn't realize they're trespassing.
They've had one break-in in the past and their car was set on fire in another incident, so maybe they've been getting more threats and feel they might need a guard dog now? Otherwise I think it's a bad idea and they may be able to get by with just a regular big show dog that barks loudly.