Belkin, Burden, Wenig & Goldman LLP leased 33,713 square feet of space at 270 Madison Ave. The law firm will occupy space on the fifth and sixth floors. 270 Madison Ave. is a 265,000-square-foot, 19-story, class-B office building. The firm is moving from 342 Madison Ave. Michael Dubin of Murray Hill Properties/TCN represented the landlord in the negotiations. Philip Shapiro of Insignia/ESG and Eric Granowsky, Barrett Stern and Jeffrey Fernholz of Murray Hill Properties/TCN represented the tenant.