Hiring family is a challenging question to answer. I think all too often hiring family gets confused with hiring the best person.
Maybe the family member hates their job. Maybe you want someone you can trust. I suspect if you didn't offer them the job with you they would end up going on and doing something that they love far more than your business. I suspect that there is also someone you already trust in your work life far more to deliver than your family member on the role you actually need to fill. So don't confuse these things.