News of Lawson's agreement was first reported by The Vertical.
Lawson had a nice start to his NBA career with the Denver Nuggets but was arrested twice for DWIs, leading to his exit there.
For his career, the 2009 first-round pick out of North Carolina has averaged 13.1 points, 6.2 rebounds and 1.2 steals per game.
At 28, Lawson still has the ability to help a team in the right situation, but he must prove he can play at a higher level than he did last season.
Information from ESPN's Nick Friedell was used in this report.