Are you implying that the use in question was fair use (i.e., that the OP should not have sent the DMCA takedown notice for this use)?
Plus, her claim of being a lawyer makes the whole matter quite baffling.
http://www.wired.com/threatlevel/2011/06/fair-use-defense/
I'm not saying that's the case here, but whether the use was commercial or not is one of the four factors considered when deciding fair use.