Is your sister's sister-in-law your sister-in-law?

Answer:
Your sister's sister-in-law is your sister-in-law, but only if your sister's sister-in-law is the wife of your brother.

If your sister's sister-in-law is the sister of your sister's husband, then she is not your sister-in-law and is not related to you at all.
First answer by ID1190768390. Last edit by ID1190768390. Question popularity: 17 [recommend question].