RX8, thanks very much for the detailed and helpful response. Here's a little more background about my situation. I own a vacation club membership, not a timeshare. With a great deal of effort after my initial purchase turned out to give me less than I'd been promised, I cut a deal that permits me to purchase unlimited weeks at a very attractive price. I can see why that would have significant value to a third party, and the membership is transferable. I'm not aware of any other resale market for my membership, so I don't know if they're offering me more than it's worth. It's therefore not obvious to me that the deal is too good to be true, but it's a pretty attractive deal. You've got me close to concluding that it's nevertheless probably just a scam like all the others. I guess I'm conjuring up reasons to think my situation is unique, since the money sounds attractive, when I'm probably just on the verge of falling victim to this same scam and should bail on it.
Unfortunately, Mexican vacation clubs are not hot commodities. You have claimed yourself that what you got isn't what you were promised when you bought it. If it is such a great product, then the salespeople wouldn't have to lie to sell them. People give these away for free, or they just stop paying the annual fees, just to get out from it. What you own, even after they tried to placate you by adding "perks", still is likely worthless on the resale market. It certainly isn't worth the tens of thousands that this "company" is offering.
Think about it for a moment. How many legit cold calls have you ever received by some otherwise unknown outfit who wants to pay you tens of thousands of dollars? It NEVER happens unless it is a scammer. You seem intent on wanting to proceed. If you do proceed it is a 100% guarantee that at some point these scammers will ask you to wire them money. They will convince you that these are Mexican Government or bank fees that that must be paid before you get your big check. They will tell you that they cannot come out of the proceeds and that it will be reimbursed to you with your big check. After you tell them that you will not pay any upfront fees they will then threaten to sue you for backing out of the deal unless you pay them a percentage. In addition, you have likely made yourself known as a potential victim and your information will be passed around/sold to other scammers.
This deal isn't any different then something like this:
You - (phone Rings) "hello?"
Scammer - "Hello, my name is John Doe and I am with The Real Car Purchase Company". I understand that you own a 1998 Ford Escort. My company is starting a used vehicle dealership in your market area and we are actively purchasing used cars. We are prepared to pay you $28,000 for your 1998 Ford Escort. If that sounds agreeable to you, we can send you the purchase documents right away.
You - Sounds good, are there any fees to be paid upfront?
Scammer - Absolutely not! Please provide your details and we will email you the documents.
(You receive the documents, sign and return them)
You (Phone rings) "Hello?"
Scammer - "We received your documents, thank you! Unfortunately, we have determined that there is a "Pre-2000 used vehicle cash for clunkers reimbursement fee" due on your 1998 Escort. That amount is $3,200 and we must have proof that it is paid by you. You can wire us the money and we will remit it on your behalf. However, we can reimburse you for this fee with your $28,000 check proceeds."
(You wire the funds)
You (Phone rings) "Hello?"
Scammer - "We received your fee, thank you! Unfortunately, there is a Gasoline tax due on older cars because they have such poor MPG. That amount is $1,345 and must be wired. The good news is that it is also reimbursable. "
(They keep asking for more fees to be paid, you finally decide it is a scam and you stop paying)
(You dial the scammer and find that the phone is disconnected)
This sounds ridiculous, doesn't it? This is exactly the same scenario that you will be dealing with.