What @wdolson said.
There are a lot of rules (apparently in most? all?) states about who can set up a raffle *based* in that state. In MA, not only are there state laws that apply, there are further regulations developed by the MA Attorney General. *And* you must apply for a permit from the *town* where the organization is holding the raffle. A lot of care is taken by to make sure that anyone setting up a raffle is known, will be tracked, and is made aware of all the rules and regs that apply.
Purchasing and/or winning a raffle ticket: not so much.
For example, in MA, the law does not appear to require the ticket purchaser to be an adult. However, for our raffle, we insist on a minimum of 18 years of age for purchase (although we allow a purchaser to buy a ticket on behalf of a minor). We also require the purchaser to be a US resident or citizen, not out of a requirement in MA or US law, but because the complications of awarding the Prizes to people who live elsewhere are just too great. Especially the Grand Prize's "No Pain" feature where we pay a ton o' taxes!
And while I, too, have never heard of anyone getting into trouble from winning a raffle, either in-state or out-of-state, neither do I wish for our raffle or our Winners to be the first to do so.
So while I think we're behaving responsibly and that purchasers so far are not at risk, at the end of the day, if you're really worried about this, either (a) don't buy or (b) consult an attorney licensed in your state or (c) if you've already bought a ticket and get cold feet, I'll fully refund it for you including transaction fees (as I already did earlier today for @ItsNotTheMoney).
Alan
California law does appear to be silent on the legality of participating in a raffle from another state. It just requires raffles run in California be 90/10 raffles.
According to my SO (the attorney), a raffle is tied to the venue where it is being held (in this case Massachusetts) and unless a state specifically prohibits their residents from participating in a raffle in another state, it would most likely be allowed. As far as I know California allows it's residents to buy lottery tickets in Oregon and collect on it if they win. That is allowed in Oregon and Washington state. Almost all state laws on raffles only apply to raffles being run in that state.
I know for a fact there have been a number of raffles for Teslas thus far and I think most if not all of them were won by people in different states from where the raffle was held and nobody got in any trouble for it. I'm sure there have been a lot of other interstate raffles and I've never heard of any legal problems when someone in another state wins.