The daughter of Australian Taxation Office deputy commissioner Michael Cranston will fight an order for compulsory questioning, saying she is eight months pregnant and has no money to her name.

Lauren Cranston, 24, is one of nine people charged over an alleged tax fraud scheme that skimmed $130 million in PAYG tax through a web of payroll administration companies.

Michael Cranston has been charged with attempting to access restricted information on behalf of his son, Adam, who allegedly masterminded the scheme.

The Australian Federal Police are attempting to claw back some of the money in a proceeds of crime civil suit against at least 60 people and companies connected to the alleged fraud.

Those 60 defendants include family members of those charged, such as Adam Cranston's wife, Elizabeth, several companies owned by the co-accuseds, and Lands Legal, the law firm owned by property lawyer Sevag Chalabian, who has been accused of receiving $24 million in blackmail money from a disgruntled syndicate member.

In recent days, the AFP issued notices to the defendants to attend compulsory examinations, in which they will be asked questions about their finances.

The examinations will start on Tuesday with Lauren Cranston, followed by Michael Cranston on Wednesday and Jessica van Schreven, the partner of alleged syndicate member Daniel Hausman, on Friday.

On Thursday, lawyers for several defendants appeared in the NSW Supreme Court to apply for an extension or a stay order on the examinations, or to revoke restraining orders.

Ms Cranston attended court along with her brother, Adam, her partner, and her other brother Joshua (who has not been charged).

Greg Walsh, representing Ms Cranston, said his client would have "real problems" attending the examination on Tuesday and he had limited time to challenge it before then.

"She's in an advanced state of pregnancy [at] eight months. She is experiencing pains," he said.

"This young woman has no money. She doesn't have a cent to rub together."

Mr Walsh said he was unavailable on Tuesday and would have to find a lawyer to act for her pro bono due to her financial situation.

Justice Fullerton allowed Mr Walsh to argue his application in an urgent application on Friday.

Other defendants were granted an extension of time so they could challenge the compulsory examination.

However, she warned that she would not let the case "limp along".

"There's a very considerable public interest and indeed the court has its own interest in ensuring the matter is managed and progressed," she said. "This ... litigation is complex by its sheer size."

The AFP had first alleged the fraud was worth $165 million but have since revised the figure to about $130 million.

Police allege the syndicate amassed that money in a year by skimming seemingly undetectable amounts of payroll tax from the employees of their legitimate clients.

The syndicate allegedly took ownership of a payroll company, Plutus, and set up several sub-contracted companies that were run by "straw" directors who were mostly petty criminals and drug addicts who had no knowledge of the scheme.

In February, syndicate member Daniel Rostankovski, 24, allegedly blackmailed the group because he believed someone had taken $25 million without telling.

Other syndicate members allegedly agreed to pay him $24 million in return for not exposing them in the media or reporting them to the authorities.