In 1973 the Mariner Group, developers of South Seas Plantation, bought Useppa. Garfield Beckstead was a Mariner investor and working overseas for an international consulting firm. When he saw the island for the first time, he resigned his job and purchased Useppa in 1976. He brought a reliable water system, electricity, and telephones to Useppa. The island was transformed into a private club and is now home to over 100 private homeowners. Useppa Island Club offers a full array of amenities to members, including a pool and deep dockage, maintenance and landscaping services for the residents, a ferry shuttle service to Pine Island and continues to offer lodging and meals at the Collier Inn. The golf course was not restored, but a regulation croquet court was created.
In 1997-1998 renovations were undertaken on the Inn to create guest rooms on the second and third floors. Renovations also included the extension of the roof line and upper porch to resemble the roof line of the original building, once the home of John Roach and later Barron Collier.
In 1989 Beckstead donated property facing the croquet court for an island historical museum. A cottage was donated by Mary Ann Krey and moved to the site by the Useppa Island Historical Society. Under the leadership of UIHS members and Barbara Sumwalt, the society raised funds to renovate the structure as a museum, which opened in April 1994.