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District officials are seeking candidates to apply for the position of principal at the Orland S. Marshall Middle School. The district has established a screening committee to assist in the search for a principal to be in place for the 2014-2015 school year. The screening committee’s first meeting is scheduled for 3 p.m. Jan. 21 in Room 210 at Billerica Town Hall, 365 Boston Road. During the meeting, which is expected to last about two hours, the committee will review applications and develop interview questions. A second meeting will be held Jan. 23. Interviews will begin Jan. 29. For more information, contact the Billerica public schools at 978-528-7900.