Shortly after Hadid received approval for the construction of a mansion in Bel Air, the Bel Air Homeowners Alliance, chaired by Fred Rosen, was formed to oppose it.[1] In January 2015, Nancy Walton Laurie, an heiress to the Walmart fortune and a Bel Air resident, filed a lawsuit through her company, LW Partnership, against Hadid.[21] Laurie accused Hadid of damaging the roots of a eucalyptus tree on her property with a retaining wall he built next to her house.[21]