The rapper was recently charged with criminal contempt after violating Arlene Raymond's order of protection by screaming and baring her buttocks while shouting obscenities.
She faced up to seven years in prison for the offence but was cleared on Tuesday at Brooklyn Criminal Court of all but one charge of misdemeanour criminal contempt, reports the New York Daily News.
"I'm so happy, I'm just very happy," she said after hearing the judge's decision.
"Never once did I worry about this."
Brown may still face a community service sentence if found guilty of the misdemeanour.
