Quote:
Originally posted by titmowse
i'd like to know about this as well. my sister's brother-in-law and i are buddies but i never know what to call him. i usually end up saying he's my side-ways brother-in-law.
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According to this site I found..
http://www.bicknell.net/books/pc1981/p_family.htm
.. in laws are only related to the married sibling. The family of the married sibling doesn't become formally related to the siblings in-laws at all. Thought there was some sort of relation there too.