Black schnauzer (Pontiac)

I have a black schnauzer that's 3 years old female not fixed needs to get a home she's potty train yeah okay all right she has her shots very obedient listen as well when she knows what you want but she will not let people in if she doesn't know them in the house other than that she's a very good dog I'm asking $100 for her would make somebody a good dog not good with small children teenagers okay show contact info