If you have seen your sister's husband in a dream: Some people may insist on giving binding promises or see your bluff, some disagreements with the people you are in contact with will force you. To see your sister's husband in your dream may represent that you will be patient with good developments in the family, love to live your life very much, realize your dreams and put a smile on your face.
The person who sees his sister's husband, brother-in-law in his dream, even though he has no older sister, or is not married despite having an older sister, gets away from his troubles and grief, and rises in his professional life.