Before I discovered timeshares for low cost (maybe even free) with sellers paying all closing costs, I corresponded last year with an agent from "sellmytimesharenow" about a week 31 for sale at Grandview Las Vegas for $99. (I had just returned from a timeshare presentation at Grandview - didn't buy THAT time - and I was curious about the resale market. This was the day the light bulb went off and I realized what my other time share - which I did buy from a developer - was really worth financially.) This $99 timeshare looked like the same thing that a salesman had just tried to sell me for big, big bucks.
Here are the closing costs the agent gave me that I would have to pay for the $99 timeshare, and it didn't sound like there was any room for negotiation over this:
$1195 "administrative fee;
$325 "transfer fee/letter"; and
$599 for some other closing expense.
In other words, the seller of this unit did not want to pay any closing costs, either completely or sharing them with a buyer, which, of course, is understandable if not entirely realistic.
Overall, of course, these costs were much, much lower than what the resort tried to sell me at the presentation. But I didn't take him up on the deal.