A Calgary judge said there's no doubt Rita Phillip of Sundre commanded the dogs to attack the woman at a trailer home in August 2012.
Deanna Wolfe was found unconscious behind a closed bedroom door and was so badly mauled that emergency responders thought she was dead.
She suffered life-threatening wounds to her arms and face, lost an ear and has had several surgeries.
Wolfe, who was 26 at the time, was a friend of Phillip and was visiting her.
Queen's Bench Justice Jo'Anne Strekaf found Phillip guilty of aggravated assault and criminal negligence causing bodily harm.
Officers responding to a 911 call found the two dogs in another room of the trailer, throwing themselves at the door trying to get out.
Phillip, 59, was arrested several days later at a Calgary casino.
The dogs had come to the attention of officials before. The town of Sundre had declared the two dogs vicious in 2011 following an attack on another dog at the same trailer park.
They had to be muzzled and on short leashes when out in public and confined to a pen when in their yard.
(CHQR, The Canadian Press)