I and a my partner will trade our own money via black box system. We want to setup some business entity (probably LLC) and contribute our own capital into it (different amounts, but the profit is shared 50-50). We want that capital to remain the property of the respective owner. Each partner should be able to withdraw money when needed. It should not be exposed to any LLC liabilities. I thought of an owner's loan to the LLC. Will this work? What is the best way to trade your own money via LLC (not an LLC money)? If we just give the LLC trading priviliges in our personal accounts then the person who contributed more will not be able to write off some portion of the shared profit. Any ideas?