Even if the CEO owns 100% of the corporation, it's still a separate entity. That's one of the benefits of incorporating - when someone sues the corporation, the

Even if the CEO owns 100% of the corporation, it's still a separate entity. That's one of the benefits of incorporating - when someone sues the corporation, they can go after its assets, but not the CEO's. But that means the corporation gets treated like a separate person. And just like you can't represent your friend in court (unless you're a lawyer), you also can't represent your corporation.