McQuillan successfully played on the Tar Heels Tour in the Carolinas during the spring of 2008, in preparation for a return to PGA Tour qualifying in the fall of 2008. He set a new competitive course record at Cataraqui in mid-July 2008, winning the Cataraqui Pro-Am tournament, with a score of 62, 8-under-par, breaking the previous mark by one stroke. McQuillan played on the EGolf Professional Tour with success early in 2010, and played well at the Seaforth Country Classic on the Canadian Tour in August 2010, finishing in 4th place. He retains exempt status on the Canadian Tour for 2011. McQuillan worked as a bartender in Kingston to supplement his income between stints on pro golf tours.