Be certain to ask what the current maintenance fees are, what is the five (5) year history of those fees and what do they cover?
In 2014, the average maintenance fees for a US based timeshare was $845. Anything 25% higher or lower than that warrants some additional questions on your part. If the fees have risen annual for the past five years anything more than 10% per year, again, stop and ask some more questions. If you don't get an answer in writing to either of those questions, WALK AWAY.