Public business contact researched 2026-10-19. Official Christie Patagonia listing names Andres Arturo Amos. Original record 8 and public Torres del Paine listing name Andres Amos. Quilmahue also has the imported GTSA attribution, retained as alternate provenance. Invalid Chicago metadata coordinates rejected. Source: https://christiesrealestatepatagonia.com/property/estancia-quilmahue/ Not manually identity-verified; no login account created.