Just make them show up in person at least once for onboarding. They're not going to fly out from China or Russia (where they tend to be based) to do this; espec

Just make them show up in person at least once for onboarding. They're not going to fly out from China or Russia (where they tend to be based) to do this; especially not to the US. Verify their ID in person, issue their laptop etc in person, make sure someone who interviewed them is there to meet and greet them (and attest that it's the same person they talked to.) If you can at least do a final interview in person also, then that's even better.