Which of the following roles is NOT authorized to sell timeshare interests?

Project managers, while they play a critical role in the development and operation of timeshare properties, typically do not engage in the selling of timeshare interests. Their responsibilities usually involve overseeing the construction, maintenance, and administrative aspects of timeshare projects rather than directly handling sales transactions. To sell timeshare interests, individuals generally need specific licenses and designations that are attributed to roles such as real estate licensees and timeshare sales agents, who are trained and authorized to conduct these sales. Developers may also be involved in sales, but primarily in the capacity of overseeing the creation of timeshare products and potentially marketing them as part of their development activities. Therefore, project managers are distinguished from those actively selling timeshare interests.