What are maintenance fees? Why have they not stayed at a fixed rate?
Maintenance fees are charged by resorts, often in (although not exclusive to) right-to-use contracts, to cover operation costs: cleaning, repair, upkeep, etc. They are almost never written into contracts at a fixed rate, and so resorts can raise them whenever they deem it necessary with the same obligation to pay. Often times owners are promised that rates will climb much slower than they actually do.