Lawyers for mushroom murderer Erin Patterson plan to appeal her guilty verdicts.

The 50-year-old has a life sentence with 33 years non-parole period for killing three relatives with a beef wellington lunch laced with poisonous deathcap mushrooms in 2023.

Patterson's barrister made the appeal announcement today.

Australian correspondent Murray Olds Patterson's got a new legal team to help move the appeal forward.

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