ONTARIO – Arbitrator’s denial of a party’s attempt to substantially reframe its case by a last-minute pleading amendment was not a denial of justice or fairness.

Ontario – Arbitrator’s jurisdiction is determined by asking whether the arbitrator had the authority to make the decision not by asking if the decision is correct. 

Ontario – First decision on jurisdiction should be made by the arbitrator, unless the challenge is based on a question of law or a question that can be decided on a superficial review of the evidence. Court stays proceeding in favour of arbitration.