[2] After attaining admission to the bar, Baylies practiced law in Woodstock as Marsh's partner until 1809, when he relocated to Montpelier.
[2] In 1813, Baylies served on the state Council of Censors, which met every seven years to review actions of Vermont's government and ensure their constitutionality.
[4] As an attorney, Baylies was recognized for his legal acumen and technical expertise; among his written works was a three volume reference work on British and U.S. common law, 1814's A Digested Index to the Modern Reports of the Courts of Common Law in England and the United States.
[2] In 1835, Baylies moved to Lyndon, Vermont to live with his daughter Mary and son-in-law, George Cahoon.
[2] He continued to practice law almost until his death, and argued a case to the Vermont Supreme Court a few months before he died.