Dogs reach social maturity around 1-3yrs. That is the time they develop their place in the pack. If you are going to see aggression develop it is usually between 1.5yr -3.5 yrs This is for people aggression and dog aggression.
Sheri had a good suggestion.
thats really good to know, Ill have to keep a very watchful eye on her... Shes always
sweet as a button with me but others not always the case... She growls at the superintendant
of our building... she hates him, but he scares her and even though Ive told him countless
times not to go at her face and head wide palmed, he still does. Hes huge 6'6 at least...
He has a lot of presence, in other words. haha, although Ive tried to get him to give
her treats she wont even take them from him...
He does hate dogs, could that be affecting her?