Best way to structure a dad-teen business legally?

Kofi and I are about to launch our HVAC service company. He's 16 and obviously can't be a legal owner yet. How have you all structured your businesses? Options I'm considering: 1. Sole prop in my name, pay Kofi as an employee 2. LLC in my name, add Kofi when he turns 18 3. LLC with Kofi as a minor member (apparently this is possible in some states?) What did you do? Any regrets? Any accountant recommendations for dad-teen businesses specifically? Also — do any of you pay your teens hourly or give them a percentage of jobs?