Person A shows up for interviews, is offered job.
Person A shows up, signs contract.
Person B shows up, claims they're hired?
Person B didn't sign anything, person A is guilty of fraud, so I don't think there's anything to design around here, "you didn't sign the contract, you don't work here, good day."
Person B hires person A to the interview for him
Person A shows up for interviews, claiming to be Person B, including B's postal address.
Business sends contract to Person B.
Person B signs, returns contract.
Person A shows up for interviews, is offered job.
Person A shows up, signs contract.
Person B shows up, claims they're hired?
Person B didn't sign anything, person A is guilty of fraud, so I don't think there's anything to design around here, "you didn't sign the contract, you don't work here, good day."