That's ridiculous, though I can understand why it works for you. I guess this got my attention because it's similar to the fallacies about LLCs that have been mentioned in this thread. Anyone can set up an LLC in 10 minutes and run a legitimate business under that name or just flash the "LLC" when it suits them even though what they're doing isn't what the other party believes. If they want to assure themselves you're operating the business you say you are, they should seek whatever evidence they feel makes the business "legitimate" enough to get commissions, and they should look for the same evidence regardless of whether the name you're doing business under has "LLC" in it or not. A sole proprietorship is a completely legitimate business. From your perspective as a dive professional, sure, I can understand it might look persuasive to others. Those others should be cautious about what weight to give an "LLC" in a business name.