If you have seen your sister and brother-in-law in your dream: You can rely on your intuition in matters concerning your home, family or your future related to your home, you should take care to use your energy carefully and in a controlled manner. To see your sister and brother-in-law in your dream denotes peace and a beautiful life in the family, protecting family unity and feeling safe with your loved ones. Not talking to your sister and brother-in-law in your dream indicates that you will become a property owner without any troubles and start a business for yourself in the near future.