After the departure of a four-partner group, New York corporate and securities firm Sichenzia Ross Ference Kesner is rebuilding, bolting on a commercial real estate boutique in Long Island.

Sichenzia Ross, a 45-attorney firm founded nearly 20 years ago, added four attorneys from Melville-based Ficara & Associates, the firms announced Wednesday.

The boutique's name partner, Anthony Ficara, joins as a partner and head of Sichenzia Ross' commercial real estate group—a new practice at the firm. The additions are part of a larger plan for Sichenzia Ross to become a full service firm, with bigger headquarters at 1185 Avenue of Americas, according to founding partner Gregory Sichenzia.