If a recruit wears a suit, I'd never hold it against them. Â The worst that can happen if you wear a suit into a solidly business casual office (I didn't know there were any in DC. ), is that you might get people who will give you the "didn't you get the memo?" line, or you may get people planning the interview lunch who decide "hey, today is a great day for barbeque" and you get sauce on your tie. Â With respect to the former, the proper response is some variation of "better to be overdressed than underdressed." And of course, the latter was always a possibility before business casual as well. If you decide to wear a suit (probably the right choice), you should just take care not to come off as stiff or overly formal. Â All those business casual slob associates don't necessarily want to bring "gunners" into their midst. Â By the way, at many firms the partners do not have any greater say in hiring decisions than the associates do. Â That is to say, when it comes down to a hiring committee meeting, a partner "yes" does not override "strongly oppose hiring" evaluations from associates, unless you are the rare recruit who has some political or business tie to the firm (e.g., you don't ding the kids of a client's senior management). Â Don't make the mistake of thinking you only need to impress the partners and can ease up when speaking to the associates.