Victorian politician Russell Northe will face court on Monday charged with 45 offences by Victoria's anti-corruption commission.
Mr Northe, who announced his retirement this year, citing fatigue and personal reasons, is charged with one count of misconduct in public office.
He's been charged with a further 21 counts of making false documents and 21 counts of using false documents.
The Independent Broad-based Anti-Corruption Commission (IBAC) has also charged the MP for Morwell with providing an annual return containing false or misleading information.
The troubled but popular former Nationals MP-turned independent took a leave of absence in 2017 due to his complex battles with addiction.
Mr Northe incurred significant debts during his struggles with depression and gambling issues.
The retiring politician is due to face court for a filing hearing on October 17.
Mr Northe has held the marginal seat of Morwell, south-east of Melbourne, since 2006 when he ended Labor's 36-year hold on the seat.
His solicitor Mark Woods says Mr Northe will not be required to be present in court when his case is heard on Monday.
"These are charges that are taken very seriously by Mr Northe ... IBAC will be required to provide us with all of the evidence they have to outline the allegations they make, and in due course Mr Northe will make a response," he said.
Mr Woods said it was too early for Mr Northe to indicate a plea.
"It is no secret that Mr Northe has had some mental health issues, he's been a tireless campaigner for issues concerning mental health and I expect him to continue to do so, but once we know the details of the allegations, then we'll be in a position to respond to them," Mr Woods said.
A spokesperson from the Independent Broad-based Anti-Corruption Commission (IBAC) said the commission would not be commenting on Mr Northe's case because it was before the courts.
Mr Northe has been contacted by the ABC for a response.
