Well, if you have a clear conscience about how fair and considerate of others you are being MzTee, I’d suggest the only thing for it is free or cheap mediation through the Community Justice Centre or somewhere else involving you, the other dog owner and the lady
Yeah, sure, you have permission for the dog but don’t forget she may actually have a point in that someone’s dog maybe disturbing the ‘peaceful enjoyment’ she is perfectly entitled to. (Even more so than you are entitled to have a dog in an apartment, if one choses to look at it that way.)
Play nice! Instead of just trying to “cover yourself”!