Not directly on topic, but you might want to edit his name out of this thread (and ask any follow-ups to do the same), since there's a decent chance that he or someone else will Google his firm's name and find this thread. Not a killer, but it might be embarrassing (especially if you get the job!).
And don't call someone "Esquire" unless they call themselves that first. He doesn't use that on his website, so stay away from it. I worked as a paralegal, and whenever I saw correspondence from some big firm attorney calling himself/herself "esquire," the "pompous ass" alarm would start to go off.
The proper etiquette for Esquire is that one never refers to oneself as Esquire, but if one is of that rank others should refer to one as Esquire in formal situations.So, if you're a lawyer talking with another lawyer, it's poor form to call yourself John Doe, Esq., but you ought to call the other person Jane Roe, Esq..The fact that he didn't use Esquire on his website shows that he's either using etiquette properly, or doesn't care to be styled Esq. Either way, err on the side of formality and respect. Other than that I think Vap's advice is spot on.