BARRE — A Williamstown woman allegedly involved in an assault and robbery is now accused of selling fentanyl.

Renee Marie Guy, 28, pleaded not guilty Monday in Washington County criminal court in Barre to a felony count of selling fentanyl and a misdemeanor count of violating conditions of release. If convicted, Guy faces a maximum sentence of five years and six months in prison. She was ordered held at Chittenden Regional Correctional Facility in South Burlington on $10,000 bail and can be released if 10% of that — $1,000 — is posted.