Arriola, Cowan and Arriola

259 Martyr St., Ste. 201
Hagåtña, Guam 96910






ARRIOLA, COWAN & ARRIOLA is a full service law firm, with a strong background and established presence in the Western Pacific, particularly the Territory of Guam and Commonwealth of the Northern Mariana Islands. Led by its senior partner, Joaquin C. Arriola, it is Guam’s oldest established law office.

The firm currently has five lawyers, all of whom have graduated from the finest American law schools, and are licensed to practice in several states. Specifically, the lawyers are admitted to practice in the courts of Guam, the Commonwealth of the Northern Mariana Islands, and the states of California and Minnesota. They are also admitted to practice in various federal courts, including the United States District Courts of the above jurisdictions, as well as the Ninth Circuit Court of Appeals and United States Supreme Court. The firm’s practice has also brought them into the courts of the Federated States of Micronesia and the Republic of Belau.

The firm’s practice emphasizes litigation. The firm also devotes much of its practice to banking, commercial and corporate transactions, insurance, probate, and real estate. In addition, the firm has had much success in criminal defense, domestic relations, admiralty and maritime law, and appellate advocacy.