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If accepting more than $10K in cash for a used boat, should I worry about counterfeiting?
The only issue I can see is that the stranger is looking to undervalue their purchase to save money on taxes/registration (if applicable in your state). Buying items with cash such as cars, boats, etc in the used market isn't all that uncommon* - I've done it several times (though not at the 10k mark, more along about half of that). As to the counterfeit issue, there are a couple avenues you can pursue to verify the money is real: *it's the preferred means of payment advocated by some prominent personal financial folks, including Dave Ramsey