#4 Some referencing so far:

#3   If it is discrimination against children, I am thinking that may be $5-10K penalty against the strata committee and or the fragile tenant in the Anti Discrimination Board or the Human Rights Commission.   

#2 What is reasonable noise for a kid? I mean the range of child personalities and physical profile. Not all sleep well, not all digest well. As for sleep - controlled crying is proven to be cruel to a child's physiology so those little darlings might sleep all night and rob banks and steal cars later on (!?). 

I have age 1 and 4 and a neighbour is giving us the wind up, but the strata are controlled by the grandparents of ours, so its a good hand to play.