Normally, I’m with Dick the Butcher, who Shakespeare famously had remark “The first thing we do, let’s kill all the lawyers.” Lawyers are why you have warnings on your iron not to use it on clothes you’re wearing, and why you can no longer get hot coffee at McDonald’s.
I’m also not a fan of demand letters. They’re typically just a written form of bullying, and, like most bullying, draw the response of wanting to just hit them in the nose.
But (very) occasionally both turn out to be quite useful. And, as a fan of great writing of almost any form, I could not not link to this.