McGee made her professional debut on May 20, 2005, scoring a four-round unanimous decision (UD) victory over Jasmine Davis at the Radisson Hotel at Star Plaza Theatre in Merrillville, Indiana.
[3] McGee won her next four fights before facing Tawnyah Freeman for the vacant NABC female lightweight title on October 19, 2007 at the Adam's Mark Hotel in Indianapolis, Indiana.
[4] After bouncing back with four wins, McGee fought Kristy Follmar (16–1, 9 KOs) for the vacant WBC International female lightweight title.
The bout took place on April 25, 2009 at the Civic Center in Hammond, Indiana,[5] with McGee capturing the WBC International female title via majority decision (MD) over ten rounds.
[7] McGee won her next three fights before unsuccessfully challenging Holly Holm for the IBA, and WBF light welterweight titles on May 12, 2013 at the Route 66 Casino in Albuquerque, New Mexico.