I found this link that has a lot animal rescue places in Calgary Alberta.
If it was me I would get someone to help recuse the dogs. When I lived in Berkeley , Calf. I lived with a friend and we had a neighbor that was abusing their St. Bernard , the poor dog was not being feed enough and was kept ties up outside all day and night. My friend and I just walked over to the house and took the dog home and feed him and took care of his paw that had a cut. We found a St. Bernard rescue shelter and they took the dog . Our neighbors never missed their dog.