Bosscher, 53, was one of two Queensland men charged following an Australian Federal Police investigation that began in February.
The lawyer and a 67-year-old Helensvale man were arrested for allegedly laundering $4.5 million in cash since February 2021.
Bosscher allegedly supplied millions of dollars - which are suspected proceeds of crime - to be deposited into fraudulent bank accounts in an effort to avoid detection by authorities.
Police said the Helensvale man used personal information from clients of his consultancy business to open the fraudulent bank accounts.
The accounts were opened in the name of some of his clients believed to be without their knowledge, police allege.
Investigators executed search warrants at addresses in Helensvale, Graceville, Bardon and Brisbane City on Monday.
Police said $70,000 cash was seized from two safes that were hidden under stairs and a cash counter at a Bardon premises.
Another $160,000 in cash was seized from a safe at the home of the Helensvale man.
Police have also seized some mobile phones for further forensic examination.
Bosscher appeared via video link in Brisbane Magistrates Court on Tuesday.
He is charged with conspiring to deal in the proceeds of general crime and at the time of dealing the value of the money or property was $1 million or more.
He will be released on strict bail conditions with his matter to next appear for mention on December 2.
The Helensvale man is due to appear in Southport Magistrates Court on Tuesday.
He is facing a string of charges including conspiring to deal in the proceeds of general crime and at the time of dealing the value of the money or property was $1 million or more.
The AFP did not rule out more arrests as they "follow the money".
"Money laundering is the backbone of organised crime. Money is the sole reason organised crime exists and taking away their ill-gotten wealth is a key priority for the AFP," AFP Acting Commander Investigations Northern Command Adrian Telfer said.
"We will continue to target the structures that enable organised crime to hide their wealth and can't rule out more arrests as our investigators follow the money."
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