Teresa Williams was arrested on New Year's Day.
She had been brought to court on two previous occasions. On Tuesday she was ordered held for a 60-day mental health assessment.
Williams is facing a charge of second-degree murder in the death of Evadne Williams-Scott.
She was taken into custody by Peel Regional Police on Jan. 1. after officers responded to a call about a "hysterical woman" who was barefoot in the snow on the balcony of a home at 3480 Colonial Dr. in Mississauga.
Police found the woman barricaded inside her home. When they got inside, officers had to use a stun gun to subdue the woman.