Your sister-in-law's niece is not related to you because you have no ancestors in common.
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The above answer is true, but by marriage, that niece would also be your niece or your own daughter. This is because your spouse is blood/sibling related to his/her sister (your sister-in-law).
If he is your brother in law then his sister is your sister in law. So your sister in law's daughter would be your niece.
Your niece in law.
Your niece in-law, or your niece by marriage.
You are your niece's aunt, if you are a woman.Any of your sisters who are not your niece's mother are also her aunts.The sisters of your niece's parent who is not your sibling are also her aunts.
She is your niece.
Your mother's sister-in-law is either the wife of her brother (your uncle), or your father's sister (your aunt). The niece of your uncle's wife is not related to you, unless she is you, your sister, or a girl cousin who is the daughter of another of your mother's brothers or sisters. The niece of your father's sister is you, your sister, or the daughter of another of your father's brother's or sisters. If your father's sister is married, she may have nieces who are the daughters of her husband's brothers or sisters. Those nieces are not related to you.
A paternal niece is a niece on the fathers side. For example:my dad's sisters's daughter is my paternal niece
Nothing. Your niece in law. Your brother in laws niece.
If she is your sisters daughter then she is your neice :)
your grand niece or nephew in-law (-Kasadie)
She doesnt have a niece she only has sisters
niece or nephew