Leslie was born in France but grew up and spent most of her life in London, Ont. After attending York University and University of Western Ontario, she received her Bachelor of Fine Arts degree and spent the next 30 years raising a family and working in photography. In 2004, she and her husband moved to rural Qualicum Beach, B.C. where she resumed painting full time as well as teach and host various workshops. She is a senior signature member of the Federation of Canadian Artists and a juried member of the Society of Canadian Artists.
Her approach is characterized in her words as:
"I approach painting in the same way I would sculpture – I like to respond to the textural and intuitive backgrounds by bringing a send of order to the chaos – a sort of “carving” out some suggestion of the figurative reality but maintaining the element of uncertainty. It is also my goal to express a sense of depth and multiple forces at work below the surface. Things are not always what they seem at first glance."