Yes, the majority owner controls the business, so your brother, as a 60% owner, is in control. Your 40% means you get 40% of any profits, or 40% of the proceeds if the business were to be sold, but gives you no say over the business--not in the face of your brother's controlling interest. Since he controls the business, he also controls the business's assets, or anything it owns, which includes the house if it is owned by the business. In that event, he could decide who gets to live in or otherwise occupy the house.