Tucker Ellis LLP named Sherry A. Knutson a co-chair of the firm’s health and life sciences group.Knutson coordinates the national defense of mass torts. Her practice ranges from multi-plaintiff, multi-jurisdiction litigations to single-plaintiff cases.• Morgan Lewis & Bockius LLP added Mark R. Kirsons to the firm’s global finance team. He joins from Sidley Austin LLP.Kirsons advises on traditional lending, including cash-flow and asset-based lending, as well as sponsor finance and structured finance …