Nestled in a loft South of Market, the law offices of Britton Silberman & Cervantez evoke the casual comfort of a software company — or, for that matter, a home. A piano sits in the foyer, and a well-stocked kitchen caters to the attorneys’ every caffeine-related whim.

Brent Britton, a bleached-blond, leather-jacketed transactional attorney, and Gil Silberman, the soft-spoken, piano-playing intellectual property expert who serves as managing partner, sheepishly apologize for the state of the firm’s new “conference room.” The cavernous space is bare but for a table and chairs; it will be subdivided into offices as the firm adds attorneys.