Your daughter's husband is your son-in-law. His brother is not related to you. If you need to refer to him other than by name you can say "my daughter's brother-in-law," or "my son-in-law's brother."
Your brother's daughters are your nieces
Your brother would call your husbands sister by her first name. Or, "my (sibling's) sister in law.
You would call your husband's younger brother a brother-in-law.
Your brother's daughters are your nieces
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,
brother in law
Nieces.
Sister-in-Law
No, Lot's daughters did not have husbands when they escaped from Sodom.
You call your husband's senior brother simply a brother in-law. There is no difference whether he is a senior brother or a younger brother he remains your brother in-law.
would it be a brother in law? not sure about this one! Is it your husband/wifes daughters brother?
would it be a brother in law? not sure about this one! Is it your husband/wifes daughters brother?