Marriott International, Inc. (MAR) has entered a long-term licensing agreement with Sonder Holdings Inc., highlighting the addition of Sonder's open and pipeline portfolio to its system under a new collection, Sonder by Marriott Bonvoy.Takeaways From the CollaborationPer the agreement, Marriott will welcome more than 9,000 rooms from Sonder’s portfolio by 2024 end, along with 1,500 rooms, into its pipeline. The rooms in Sonder’s pipeline are expected to be added to the company’s system over the next few yea ...