Donohue Brown Mathewson & Smyth LLC added Erin V. Calandriello and Kyle A. Cooper as associates.Calandriello deepens the firm’s product and professional liability practices as a former plaintiff’s attorney in catastrophic injury cases.She was previously with the Law Office of Martin L. Glink.Cooper has prior experience in commercial litigation..He is a former intern to then-Sen. Barrack Obama.