The binding legal principles established are: (1) For res judicata to apply, four cumulative requirements must be met: the parties must be the same, the subject matter must be the same, the cause of action must be the same, and there must be a final determination on the merits. (2) Non-joinder of a party in prior proceedings does not defeat res judicata where that party's identity and role were clearly established in the proceedings, consistent with Rule 32(15)(11) of the High Court Rules, 2021. (3) A party cannot avoid res judicata by simply changing the capacity in which they claim an interest (e.g., from personal capacity to representative capacity as a trustee) when the substance of the claim and the individual making the claim remain the same. (4) Once a court has made a final determination that property is executable, that determination binds the parties and cannot be relitigated absent setting aside the prior order by a competent court.