you call her your daughter's husband's sister
you call her your daughter's husband's sister
Your brother would call your husbands sister by her first name. Or, "my (sibling's) sister in law.
You would call your sister's daughter your niece.
brother in law
Mom
Sister-in-Law
Your daughter's husband is your son-in-law.
The daughters of your sister are your nieces.
I think that you call them your cousin in law because its pretty much the same concept as a sister in law... its your husbands cousin so it would be a cousin in law
sister in law
I call her Jane. There is no special name for a person in that relationship.
Yes, because your daughters are sisters and since their husbands are your son in law's that would make them brother in laws.PS. I hope your daughters are veryhappy, congrats!! :) ,,Chameleon5,