Are there other circumstances when an adult interdependent partner agreement will not be valid?

Yes. In addition to being invalid if one person was persuaded to make the agreement by fraud, duress or undue influence, the agreement will also be invalid if, at the time the agreement was signed:

• One of the parties did not have the mental capacity to understand what they were agreeing to;
• The parties were not living together and did not intend to live together in an interdependent relationship when they made the agreement;
• One of the parties was married;
• One of the parties was already a party to an adult interdependent partner agreement with someone else;
• One of the parties was a minor, or was over 16 but had no written consent from a guardian to make the agreement.
• If the parties are related by blood or adoption and if one or both of the parties is under 18.

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