Your sister-in-law's husband may be your brother. If so then the brother-in-law is either your husband, in which case the daughter is your daughter; or the brother-in-law is your brother, so the daughter is your niece or the brother-in-law is the brother of another sibling's spouse, in which case the daughter is still your niece If your sister-in-law's husband is not your brother, then he is not related to you and his brother-in-law's daughter is not related to you.
I cannot see why not. There is no blood relationship between you and your sisters ex-husband.
Brother-in-law
Your sister's husband is your children's uncle. They are his nieces and nephews.
Your kids and my sister's husband bear no relationship to each other. It is extremely unlikely that they even know each other.
Your wife's brother is your brother-in-law.
Your sister's husband is your brother in-law, there's no different word in english to describe the husband of an older or younger sister.
Agnes Crumplebottom got into a relationship with her sisters husband. They had a baby and Agnes's sister found out!
sisters in law
If she was still married when she died, the husband gets the estate and the sisters have no claim. Whatever relationship problems she had with her husband died with her, anything else is merely unfounded conjecture without any legal merit.
The bible says Adam had other sons and daughters, so they came from there.
She is your sister-in-law.
Let's see if we can unravel this. Your sister's husband's father's brother is your sister's husband's uncle. The uncle's daughter is your sister's husband's cousin. There is no relationship to your sister, unless your sister wants to call her a cousin-in-law. To break it down to its simplest terms: She is your brother-in-law's cousin and no relationship to you.