This is just my opinion. You are asking too much. You want a protection dog that has a low prey drive. You want the protection breed never to start a fight, but be able to end the fight. Because it was their job to drive off wild dogs and other predators some can e dog aggressive. However, with training and socialization it should be rare to have those issues.

These are contradictory of a working breed. Working breed had jobs to protect the family, property, and or livestock. This means they have to have a good prey drive. They also have to be able to initiate the fight to kill or run off predators and intruders.

Sure there are low maintenance dogs. For the most part these are dogs with very short coats. They only need the occasional bath and maybe a brush every blue moon. There are many dogs that tend to stick close to the owner. Most molosser breed do drool. The presa for example is considered to by a dry mouth molosser. However, there are some that will drool more than others. Only one of my presas drool.

In all honesty no dog just want to please its owner. We say this, but truthfully that is all marketing. Some dogs are more biddable than others. But the dog only does what it does because it is beneficial to the dog. It doesn't do it because they love us and wants to please us. They need us for everything. Protection breeds are often aloof with people. They can be taught to accept people. This depends on how you train them. But that may take away from its reliability to be a great protection dog. Many of those dogs will not protect unless it is given a cue or command. It will accept the stranger if the stranger is not acting threatening.

Right now based upon what you said you are looking for in a dog if I had puppies I wouldn't place a dog with you. Nothing against you personally. but I want to place my dogs in homes where I believe the new owner would be happy with their selection. I don't have a problem taking any of my pups back. But I know I can't guarantee that the dog will not drool. The odds say that it won't and it probably will not as a 8-10 weeks old pup. But it might later. I know it is a possibility that they might be dog aggressive/. I don't know how good you will be at training and socialization. We can't control environmental issues like that as breeders. My dogs should be loyal and protective of its family and home. But it is possible that it will not want to accept all people unless it is taught the no person is a threat. Then that takes away from the dogs protective nature.

My suggestion is to really know which characteristics are the most important to you. Know which ones you can do without. Do you want Snoopy the great companion dog or do you want a companion dog that will protect and is confident enough to fight in the face of danger?