Christine Lavoie, who lost the run for her former selectman’s seat in June by five votes, easily won a seat for the next 21/2 years during a special town election held Monday. Lavoie earned 75 votes, defeating former selectman Paul White, who took in 57 votes, and resident Wayne Cartier, who brought in 52 votes. Lavoie will replace David Levine, who earned his seat in early June elections by beating her at the polls and resigned at the end of June to take a job in Portland. The three-year term expires in July 2009. Ballots cast for the vacant school committee seat came in with Kathy Lawrence, with 108 votes, beating out Lori Callnan, who tallied 62 votes in her favor, according to the unofficial town tallies. Lawrence will replace Nancy Snyder, who resigned in August to teach art at Center Drive School, and will serve the remainder of Snyder’s term, which expires in July 2008.