The April 1 town election will feature several contested races, according to the town clerk’s office. Two seats are up for grabs on the Board of Selectmen, and incumbents Peter W. Teitelbaum and Judith Whiteside are running for reelection against challenger Michael Frates. On the Board of Assessors, there will be a battle for two seats between incumbent James McCahill; James R. Giberti, chairman of the Capital Planning Committee; and Priscilla Porter. The School Committee race will feature incumbent Clifford Sylvia, police officer Karl Baptiste, and Melvin Lazarus vying for two available seats. The last day to register to vote in the election is March 12, and the town clerk’s office will be open until 8 that evening.