Yes, she is your sister-in-law.
SHe's your relative by virtue of her sister being married to your brother.
Before or after a divorce a step-sister is not considered a legal relative in most jurisdictions.
Yes. She is your sister through your brother or sister.
i believe that your brother's wife's sister is also your sister in law No, I think not! But as you seem to have the hots for your brother's wife's sister, you can call her "honey" if you like.
Your sister in law is your husband's sister or your brother's wife.
Yes.
Yes
Probably your niece-in-law.
Yes. You are the aunt of your sister's children and anyone you marry is their uncle.
Of course she is otherwise they wouldn't be sisters they would be half sisters or something like that man you're stupid
You're wife's brother's wife is your sister-in-law.
yes...