McGee turned herself in to police Tuesday morning.
Detectives are charging her with two counts of accessory after fact for first-degree murder and two counts of accessory after fact for armed robbery with a dangerous weapon.
Meanwhile, McGee's boyfriend - 28-year-old Tony Gorham - had his first court hearing Tuesday.
He's charged with murdering Nancy Burgess and her 92-year-old mother Maxine McCrary at McCrary's Roanoke Rapids home.
Police sayGorham robbed and then stabbed the women. McGee lived next door to McCrary on Highway 158.
Burgess was on the phone with her brother in Virginia Friday night when she mentioned that a neighbor was at the door. She said he might need to use the phone again.
Burgess told the brother to call back in 10 minutes and they hung up. The brother said he kept trying to reach the women, but the phone stayed busy.
"A few hours later, the family member contacted the police to check on the welfare of the two ladies," Roanoke Police Chief Jeff Hinton said.
Chief Hinton says the information about a neighbor dropping by led to the arrest of Gorham.
Gorham has a criminal history with convictions for violent crimes, including assault, assault on a female, assault with a deadly weapon, resisting an officer and robbery.
He was on probation at the time of the murders and according to state officials; he met with his probation officer the day before the murders.
On Tuesday, a judge ordered Gorham held without bond. He faces a possible death penalty or life in prison if convicted. McGee's bond was set at $250,000.
Burgess was a longtime employee of Durham Public Schools. She was a secretary at Carrington Middle School.