[widgeon13]

Hire him, tell him he will have to perform to higher standards than the rest because he hopes to move up in the business. Set strict guidelines for his performance. If he understands and agrees to the ground rules he will work out just fine, if he doesn't then fire him. This is what causes family companies to fail, lack of accountability and weeding out the poor performer even if they are family.

You owe it to your brother, blood is thicker than water.