Mr. Dattels was educated at St. Andrew’s College, Aurora, Ontario from 1961 to 1965. Between 1965 and 1969 he studied at McGill University where he obtained a Bachelor of Arts degree and at the University of Western Ontario from 1969-1972 graduating with a law degree (cum laude).
In 1972 he was articled to Messrs. Thomson Rogers, a Toronto-based law firm and completed his Ontario Bar Admission in 1974. He then joined the Toronto law firm of Perry, Farley & Onyschuk where he worked between 1974 and 1976.
While employed at Venturetek International Limited he completed the Programme for Management Development at Harvard University.