The mother of two on Tuesday woke up for the first time as a convicted killer after being found guilty of three counts of murder and one count of attempted murder.
Her estranged husband Simon's parents, Don and Gail Patterson, 70, and aunt Heather Wilkinson, 66, all died in hospital days after Patterson served them beef Wellington parcels laced with death cap mushrooms in July 2023.
Heather's husband Ian Wilkinson was the sole survivor.Â
If her lawyers decide to file an appeal they will have 28 days to do so from the date she is sentenced, with the pre-sentence process set to start later in 2025.
Clinical forensic psychologist and criminal lawyer Brianna Chesser said Patterson will likely face "quite a large sentence".
"We've heard during the cross-examination and examination-in-chief that there are some mental health concerns for Ms Patterson," Dr Chesser told AAP.
"That may well act a mitigating factor in any sort of sentence.
"We're also dealing with someone who's a middle-aged woman, who has never offended before in their life and we've got four of the most serious crimes in Victoria being committed."
She said any appeal would usually be restricted to points of law, a "massive" error in fact or new evidence.
There was a shout of "murderer" as Patterson was driven out of the court precinct in Morwell in eastern Victoria to prison in Melbourne on Monday.
The case has captivated the world, with dozens of podcasts, international media attention and members of the public lining up for weeks to catch a glimpse of the trial.
Patterson will go down as the most famous female murderer in Australia, according to senior criminology lecturer and researcher Brandy Cochrane.
The Victoria University senior lecturer said that historically women who kill tended to use "non-confrontational forms of murder" like poisoning, rather than shooting or stabbing.
"There's a very long history of people being very interested in women who kill because it is such a rarity, as opposed to men's violence that is kind of regularised in our society," they said.
"It's sort of a woman transgressing these ideas of what their gender roles should be and when that happens, especially in domestic settings, like poisonings in the home, those sorts of things, people become quite fascinated."
Dr Cochrane compared the fascination with Patterson to that directed at Lindy Chamberlain, who was convicted and then exonerated over the 1981 death of her daughter Azaria, and particularly the way the public dissected their appearances.
The jury's guilty verdicts came seven days after being sent away to deliberate and 11 weeks into the trial.
Dr Chesser argued Patterson's testimony across eight days on the witness stand, as well as circumstantial evidence, likely proved critical to convincing the jury beyond reasonable doubt.
"Whenever you have any lies in a trial it is quite a difficult thing to overcome from a defence perspective," she said.
"What came out regarding the mushrooms was almost insurmountable.
"When you've got particular searches on your phone and a dehydrator that you had and didn't have, it really speaks to the unusualness of the circumstances."
Evidence released by the Supreme Court within hours of the decision included photos showing beef Wellington leftovers as they were tested by toxicologists, after police found them inside a bin at Patterson's home
A video of Patterson discharging herself from Leongatha Hospital minutes after she had arrived was also released, while images of her at the hospital revealed a pink phone police say they never recovered.
Prosecutors said this was Patterson's primary phone in 2023 and claimed she had used it to find death cap mushrooms online.
