Versions of s. 237.3(1), definition “contractual protection”, para (b)
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any form of undertaking provided by a promoter, or by any person who does not deal at arm’s length with a promoter, that provides, either immediately or in the future and either absolutely or contingently, assistance, directly or indirectly in any manner whatever, to a person in the course of a dispute in respect of a tax benefit from the transaction or series. (protection contractuelle)