If you execute two businesses in a single company, you subject each other to increased risk. Somebody suing her company will go after your assets. My advice is

If you execute two businesses in a single company, you subject each other to increased risk. Somebody suing her company will go after your assets. My advice is to set up separate companies. You can share facilities etc. But don't ever run them under the same company if they are run by two different people, doing two different businesses - unless cost is important and you want to save $1 of legal fees keeping them separate. Steve Jobs: it doesn't make sense. In a company every idea will have to fight for funds and resources. If your idea is funded on its own merits then there will never be this issue. Anyway, you are putting the cart before the horse. Go and sell something.