If he's new onset (never known with AFib before), you need a cardiac consult, anticoagulation, then he can have the surgery in a month. Alternative: TEE (to rule out clot), then surgery.
The wrong answer (from a medical standpoint): having surgery today, regardless what your boss says. If he strokes out periop, it's on you.
If the AFib is pre-existing, on and off, and the patient was not anticoagulated for some reason, I would still get a cardiac consult (unless the patient refuses anticoagulation). A 50 year-old should not just walk around with AFib and a possible clot, even if the risk is just a few percentage points/year. The risk of a clot increases significantly periop.
Now some people will argue that you should just do regional anesthesia, and you will get away with it, but that's not the optimal care for this patient. You wouldn't do ELECTIVE surgery on a family member like this.