While in his third season, Lawson would regain his form and also his first team place. He scored six times, against Greenock Morton, Partick Thistle, Dundee, Dunfermline Athletic (twice) and Berwick Rangers. This was his highest goal tally in a season. In mid-December 2009, Lawson signed a new two-year deal with the club. During the season, Lawson was in the squad throughout Ross County's campaign in the Scottish Cup with the club reaching the final after beating Celtic in the semi-final. A year later, Lawson said he felt he wasn't really involved in that match having only on as a substitute in the last minute. In the Scottish Cup Final, Ross County lost 3–0 against Dundee United with Lawson coming on as a substitute for Steven Craig.