Lawton was ranked by the NHL Central Scouting Bureau as the top prospect for the 1983 Entry Draft. His NHL career included 266 career points in 483 games. Lawton played his first couple of years in Minnesota, and split his second season between the North Stars and their American Hockey League affiliate, the Springfield Indians. In 1983, Lawton was training with the U.S. National Hockey Team, but unlike other North Stars prospects, Lawton was encouraged to turn professional ahead of the 1984 Winter Olympics, and though he did later play in the 1984 Canada Cup, missed the extra experience playing in Sarajevo would have afforded him. Lawton also later played for the United States team at the 1987 Championships.