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I made the purchase because a member of TUG offered one of their timeshares on ebay and he appears to very reputable....
This sounds a bit odd, or I haven't read you correctly.
Are you saying the TUGer was offering his own timeshare on eBay (and that it was listed by CJ Timeshares)?
Or did you mean that the TUGer simply pointed out the CJ listing on eBay to you, along with a tacit endorsement of the company?
A "reputable" TUGer is probably a very experienced TUGer. I could be wrong, but I find it hard to fathom that a TUGer would actively seek out and use a PCC to sell his personal timeshare. There are other easy and less expensive ways to get rid of a timeshare by listing here on TUG, or listing on eBay as an individual, than to go through the added expense of "hiring" a PCC to do it.
That said, CJ Timeshares has gotten decent reviews by other users here on TUG, and I don't think you have to worry about the conduct of the actual transfer process and legitimacy of the company.