Jensen

*684 Kari Jensen appeals the trial court's order quashing service of a summons and cross-complaint on her sister, Trine Jensen. Trine, a resident of Utah, is the guardian ad litem for their elderly mother, Grethe Jensen. Kari's cross-complaint attempted to allege a claim against Trine in her individual capacity and not in her capacity as Grethe's guardian ad litem. In late 2016, when Grethe was 89 years old, she sold a house she owned in a Ventura retirement community and bought another *834 house with Kari as joint tenants. Trine traveled to California and moved Grethe to Utah, where she now lives in a "memory care" facility. After the move to Utah, Grethe filed a lawsuit in Ventura against Kari, for the partition by sale of the real property they own as joint tenants and for damages on tort theories including financial elder abuse. The Ventura County Superior Court granted Trine's application to be appointed guardian ad litem for Grethe. Kari filed a cross-complaint against Trine for intentional interference with prospective economic advantage. Trine moved to quash service of the summons on the ground that California lacks personal jurisdiction over her. The trial court granted…