CCQ-1991 - Civil Code of Québec

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1507. The fulfillment of a suspensive condition obliges the debtor to perform the obligation, as though it had existed from the day on which he obligated himself under that condition.
The fulfillment of a resolutory condition obliges each party to return to the other the prestations he has received pursuant to the obligation, as though the obligation had never existed.
1991, c. 64, a. 1507.