<h1>Legal checklist for twin-city Art Deco centenary festival: contracts, heritage rules, permits, artifact loans, IP, safety, sponsors</h1> A twin-city centenary festival celebrating Art Deco will stage a museum exhibition and public programming across two cities on set dates, organized by private promoters in partnership with a municipal museum and heritage organizations. Legal issues include contractual arrangements among organizers, venue hosts and commercial partners; compliance with heritage-protection and UNESCO-related restrictions; permits for public events and street activations; licensing and provenance due diligence for loaned artefacts; intellectual property rights for reproduced designs and media; consumer-safety and liability obligations for public programming; and sponsorship, marketing and data/privacy compliance.