Bishop Stasiuk was born to a family of ethnic Ukrainian Greek-Catholics in Canada. After attending the Eastern Redemptorists' minor seminary, he joined the Congregation of the Most Holy Redeemer in 1960, where he made his profession on 28 August 1962 and his solemn profession on 28 August 1965. Stasiuk was ordained as a priest on 2 July 1967, after studies at the Saint Paul University in Ottawa, Canada. Then he continued his studies in another Canadian university, University of Ottawa and in France in the François Rabelais University in Tours.^[1]

After returning from studies, he had various pastoral assignments and served as parish assistant, professor, superior and director at the Redemptorist Institutes in Canada. From 1981 until 1993 he was a rector of the Saint Vladimir's College.^[1]

On 16 December 1992 Fr. Stasiuk was nominated by Pope John Paul II and on 9 March 1993 consecrated to the Episcopate as the second eparchial bishop of the Ukrainian Catholic Eparchy of Saints Peter and Paul of Melbourne. The principal consecrator was Metropolitan Maxim Hermaniuk, the retired head of the Ukrainian Catholic Archeparchy of Winnipeg.^[2]