Much of the reputable Maremma dog breed info you will find will stress to you that this breed is not primarily a "pet", this breed is a working dog, and keeping one as such requires a GREAT deal of socialization from the very beginning. They may be social and rambunctious as a puppy, however, they will steadily increase in their protective behaviors until they become quite the opposite. This dog is naturally intelligent and independent, requiring little training for their work. They are large to very large canines whose muscular, powerful bodies need plenty of exercise.
Maremmas are very easy to train when they are young. Although it is not recommended to keep them in house, they are easily house-trained and quickly pick up on basic commands. They need no training to do their duties because they are naturally protective and become more so as they age. By the time they are 2 they are independent thinkers that, although not outright disobedient, consider themselves your equal and like to make their own decisions. They will not leave their "post" if they feed their is a need to be there, even if instructed by their owner.
Members of this breed are outdoor dogs that need plenty of room to roam or, at the very least, a large yard. If you insist on keeping them as a pet they should be socialized from day 1, otherwise even the most common of strangers (the garbageman, even distant relatives at Christmas) may cause them to react negatively out of protective instinct. Although they do well with small children they are raised with, they should be supervised because of their size. As their duty was (and is) protection of flocks and livestock, they get along with almost any animaland have also been known to show them great affection; be careful if you have two male canines in the same living area, the Maremma is a leader and may not mesh well with another.
Maremmano dogs are meant to live outdoors in pastures, farmlands and on ranches with their charges that include everything from sheep to penguins! They are calm and laid back, once adults, but will need at least an hour of exercise daily if kept indoors (which is not recommended). If you insist on owning one of these in a city environment (also not recommended) they should be kept on leash at all times.