Many of these types of companies will offer to purchase your timeshare at a great price. They will tell you that you need to send them money to cover some type of fee (title transfer, taxes...). After you send it they may come up with some other type of fee or else you will never hear from them again and you will be left with your ownership and a loss of the money you sent. Be very careful with these types of companies, especially if they contacted you without you asking them to, most are scams.
~Diane