By Marco Falco ( October 10, 2023, 2:33 PM EDT) -- Commercial contracts across Canada are bound by a duty of good faith. This includes the duty to perform the contract honestly and exercise any discretion under the contract reasonably: see C.M. Callow Inc. v. Zollinger, 2020 SCC 45 and Wastech Services Ltd. v. Greater Vancouver Sewerage and Drainage District, 2021 SCC 7....