Character Analysis
Mr. Kyrle is a lawyer with a capital "L." For the most part, that's his only function. Marian writes him for legal advice. Walter visits him for legal advice. And Mr. Kyrle's topics of conversation involve... legal advice. The dude's committed to his job, that's for sure.
Despite the limited view we get of Mr. Kyrle, he comes across as a friendly man who is genuinely concerned for his clients, Marian and Laura.
But that doesn't mean he checks his logic at the door. Instead, Kyrle takes on the rather thankless role of devil's advocate in Part 3 of the novel, when he challenges Walter and refuses to sugarcoat the harsh legal realities of Laura's case.