Selectmen on Tuesday will hold a second round of public interviews for three finalists chosen by a recruitment firm for the post of town administrator. The finalists are Michael Byrne of Beverly, a management consultant and former official for the state Registry of Motor Vehicles; Robert Fennessy of Plainville, a lawyer and the former town administrator of Boylston; and Dennis Luttrell of Marion, currently the town administrator of Somerset. Selectmen are inviting residents to submit questions for the board to ask candidates at their interview, which will take place at Town Hall. Send questions to email@example.com. Selectmen held an initial round of interviews two weeks ago, and last week the candidates were interviewed by town department heads.