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Nathens, Siegel LLPNorth York, ON · September 8, 2026

Cohabitation Agreement vs. Prenup in Ontario: Key Differences

A cohabitation agreement vs prenuptial agreement is a legally binding domestic contract in Ontario designed to protect assets, outline financial responsibilities, and clarify spousal support expectations in the event of a separation. A cohabitation agreement refers to a contract executed by unmarried, common-law partners, whereas a prenuptial agreement—formally designated as a “marriage contract” under Part IV of...

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