Anthony Scarpino, a former trial judge who served four years as Westchester County district attorney, is joining Dorf & Nelson as a partner focused on strategic planning and civil litigation, the firm announced Monday.

The move comes as the Rye-based firm is looking to expand its already diverse footprint into new areas of private practice, Scarpino told the New York Law Journal in an interview. In his new role, Scarpino said he would be concentrating his work on business development and counseling clients, as well as practicing in “all ranges of civil litigation.”