Buckley Fine LLC in North Barrington added William A. Ensing as a partner and Nancy P. Tassi as of counsel.Ensing concentrates his practice in business, estate and asset protection planning; Tassi concentrates her practice in negotiating a wide range of business sales and complex commercial transactions.The firm also named Jill Bogaerts as CEO and Michelle Wrzeszcz as chief operating officer. • Cornerstone Government Affairs added Amanda “Mandy” Drendel as a vice president in its Springfield office.Drendel …