Contacted by Timeshare reseller DallasRPS regarding an offer from a "Mexican Buyer" willing to pay a lot more than I expected for my Villa Del Palmar Flamingos timeshare. Everything seemed on the up and up until the request to prepay Tax of almost $4000, refundable at closing. I contacted an attorney familiar with timeshares who reminded me that any such real estate transaction should occur, taxes and all, AT CLOSING. He reported this same buyer has previously gotten others to prepay the taxes and the closing never happened, leaving the seller high and dry and out an additional $4000! Dallas RPS claimed to me that they had someone in the Mexican "IRS" office (the "SAT") who would accept the tax payment. Exactly, and why, in my opinion, you should not be prepay anything in advance of a sale that, itself, seems too good to be true.