Supreme Court rejects US probate order in inheritance dispute

The Supreme Court dismissed a lawsuit seeking to enforce a US probate order against real estate in Korea, ruling that the foreign judgment exceeded the scope permitted for enforcement under Korean law. The high court affirmed a lower court's decision that the plaintiff's claim was inadmissible because the US order conflicted with a prior domestic ruling appointing a different estate administrator.

The case involved a South Korean national who died intestate while residing in the United States as a permanent resident. A Korean court had issued a final judgment appointing one individual as the estate administrator for assets located in Korea. However, a second party obtained a US probate order granting them full authority to manage the estate and sought an execution judgment in Korea to force the sale of the property.

The Supreme Court clarified that the execution judgment system under the Civil Execution Act is designed solely to facilitate the compulsory realization of rights confirmed by a foreign court, not to grant new or broader powers. A foreign judgment must contain specific content suitable for compulsory execution to qualify. The US order, which broadly conferred management authority rather than ordering specific performance, did not meet this criterion.

Recognizing the US order would violate South Korea's good morals and social order because it directly contradicted the existing domestic judgment regarding the estate administrator. When determining whether a foreign judgment violates public policy, courts must examine not only the operative part of the decision but also its reasoning and the consequences of recognition. Since the US order undermined the finality of the Korean court's appointment, the Supreme Court concluded the lawsuit seeking its enforcement was legally invalid.