 He signed a one-year, two-way contract with Ottawa on July 16, 2012.On October 2, 2014, Lawson as a free agent ventured abroad to sign an initial try-out contract with Austrian club, Dornbirner EC of the EBEL.Lawson secured the starting position with the Bulldogs, and appeared in 37 games in the 2014–15 season, recording 19 wins.