WOBURN, MASS. — Woburn-based Cummings Properties has leased 7,000 square feet of office space at TradeCenter 128, a 400,000-square-foot office complex located in Woburn. Newly formed insurance brokerage firm Tudor Risk Services will occupy 7,000 square feet of office space within the complex. The company was founded earlier this year and is operating dual headquarters in Boston and Albany, N.Y. Derek Cook of Cummings Properties provided in-house representation in lease negotiations. Terms of the transaction were not disclosed.