The lawyer for Berenson says he expects the American activist to be released on parole from a Peruvian prison Thursday.
Berenson, a 40-year-old New Yorker, has spent 15 years in Peruvian prisons on a conviction of collaborating with leftist rebels.
Many Peruvians object to Berenson's release, calling her a terrorist. But Peru's president, Alan Garcia, says he respects the parole ruling by a judge Tuesday.
Berenson's lawyer Anibal Apari, who is also her husband, says prison authorities have informed him that they expect her to be released Thursday morning.
Apari and Berenson have a 1-year-old son, Salvador, who has been living with his mother in prison.