This document is a complaint for declaratory relief filed by MGM Resorts International and related entities (MGM Parties) regarding lawsuits and threatened lawsuits against them related to the October 1, 2017 mass shooting at a music festival in Las Vegas, Nevada by Stephen Paddock. The complaint argues that under the Support Anti-Terrorism by Fostering Effective Technologies Act of 2002 (SAFETY Act), federal courts have exclusive jurisdiction over such claims since security services at the event provided by Contemporary Services Corporation were certified by the Department of Homeland Security under the SAFETY Act. The complaint seeks a declaration that the SAFETY Act governs all actions and claims related to Paddock's attack.