Your only protection might be the possibility that the alleged HDC is actually the party who purchased the check. In that case, you have an out. If you can prove that the HDC knew of your claim against the remitter before accepting the cashier's check from the remitter (this is called collusion), you also may have a claim.
Otherwise, your behind is most definitely (as you so elegantly put it) in the wind.
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John S. Burnett
BankersOnline.com
Fighting for Compliance since 1976
Bankers' Threads User #8