Owning a timeshare can be so expensive that, if you inherit one, you may want to refuse to take it by filing something called a “disclaimer of interest”.
This may be a surprise because typically inheriting something is a good thing. That's not necessarily the case with timeshares because a significant amount of them are basically worthless.
Even if you are bequeathed a timeshare that is totally paid off, you'll still have to pay monthly maintenance fees for as long as you have it. These maintenance fees can be $700-$800 a month or more. At $800 a month, you'll be paying $9,600 a year to use a timeshare for one week a year. Some deal.