The 29-year-old star of The OC filed a lawsuit yesterday in Los Angeles.
Mischa claims that Nuala Barton kicked her out of a Beverley Hills mansion - paid for by Mischa’s early acting jobs.
In the paperwork, Barton describes her mum as: ‘a greedy stage mother posing as a talent manager.’
She claims that her parents ‘sit back expecting their daughter’s hard work and dedication to her craft to support their lifestyle.’
Nuala Barton served as her daughter’s manager from a young age, though the star’s career has made relatively slow progress since she left teen drama The OC in 2006.
But now Mischa has claimed her mother cheated her out of money, as well as taking a 10 per cent cut of all her jobs.
Barton began acting as a young child, having a small role in both Notting Hill and horror movie The Sixth Sense before landing the role of Marissa Cooper in The OC.