A Practice Note explaining the key issues and steps in a Massachusetts state court to consider when subpoenaing nonparty discovery in Massachusetts for an action pending in a different state (often called domesticating a subpoena). This Note also covers the best practices for applying to obtain discovery from a nonparty under M.G.L. c. 223A, § 11 and M.G.L. c. 233, § 45, including drafting the application, case-initiating documents, and subpoena.