As everybody knows I am a Schnauzer person, and I'm sure you know Schnauzers are playful, excellent watch dogs, independent, some like children some don't (like mine)and if brushed regularly they do not shed a hair.
Have you seen the Standard Schnauzer, they are between a Mini and a Giant? I'm sure they have Schnauzer Rescue in Canada like they do here in the states. Whatever kind of dog you decide on good luck in picking out just the right one for you both.