I have a timeshare in San Diego that I am paying on. There are no black out days which makes it a great deal. But I need to get rid of it. I have been told by several places not to deal with a company that charges to sell, but I can not find any that do not. Any recommendations? Hopefully a company someone has used before.

I made a successful sale of my Mystic Dunes timeshare (Orlando) using sellmytimesharenow.com
Here is the research I did before choosing a company
1. I checked the BBB report on the company
2. I made them provide traffic and offer reports
3. I acted like a buyer on search engines and only inquired with easy to find, top ranked companies
4. I searched online for complaints about the company.
All this took me a couple hours (the final decision took days!)
I also posted on free sites at the same time and recommend you do the same as well.
Contact the resort where you time share is and ask them about resales.