Which of the following is a risk associated with purchasing a timeshare?

Purchasing a timeshare involves several financial risks, one of which is fluctuating fees. Timeshare owners typically face various recurring costs, such as maintenance fees, property taxes, and assessments for repairs or upgrades. These fees can rise over time, often unexpectedly, leading to potential financial strain for the owner. Unlike a traditional property, where the owner might have more control over expenses or the ability to sell without incurring further costs, timeshares often come with predetermined fees that can change annually.

The other options mention aspects that are generally less concerning in the context of timeshare ownership. Difficulties in dealing with renters can occur, but many timeshare owners primarily use their timeshare for personal vacations rather than renting it out. Guaranteed property appreciation is misleading since timeshares often do not appreciate in value like traditional real estate, and fixed resale value is also unrealistic, as the resale market for timeshares is typically fraught with challenges, often resulting in financial loss.