11/9/2010 8:11 AM (PST)
Transfer Smart has an excellent BBB rating with two complaints. Check out their report at the link above your question - you can also check out their Reviews on TrustLink.
Interval Relief has a decent BBB Rating as well with 3 complaints on file, here is a link to their BBB Report:
Click here for Interval Relief's TrustLink Reviews:
Please keep in mind timeshare companies will take title to your timeshare using all of the procedures required by the timeshare company. These companies require that you pay them to take the timeshare off your hands. It sounds counterintuitive but it does get you out from under the continuing obligations and the truth is, there are almost no buyers for timeshares.