Well if you read it it lists the rules that Arrile must follow in order to keep his home open as a trade house, there are only ten of them.
You should read it because at the very end #10 says that he isn't allowed to leave it in the hall room or anywhere that the public can view these rules.
Well that is exactly what he did!
I just thought this would be funny for some people to go in game and look at
EDIT: lol Sorry about the misspell in the title just noticed.