​Kaighn Smith, Jr. leads Drummond Woodsum’s nationwide Indian Law Practice Group. He has represented Indian nations and their enterprises for over 25 years and has gained a national reputation for his work. A litigator, his cases focus on jurisdiction and sovereignty disputes, labor and employment relations, complex transactional disputes, environmental matters, and fishing and water rights. He represents clients in the federal, tribal, and state courts and before federal administrative agencies across the country. In 2011, he published the leading treatise, Labor and Employment Law in Indian Country, with the Native American Rights Fund. Since 2012, he has served as associate reporter (with Professors Matthew L.M. Fletcher and Wenona Singel) on the Restatement of American Indian Law for the American Law Institute. He is listed in 'Best Lawyers in America' for the category of Native American Law.

Kaighn clerked for Judge Frank M. Coffin at the U.S. Court of Appeals for the First Circuit and for Justice Louis Scolnik at the Maine Supreme Judicial Court. He has served as Adjunct Professor of American Indian Law at the University of Maine School of Law.