The defendants are also applying to claim back the cost for their defence.
Charges against a fourth accused, Lance Morrison, were dropped in June, but prosecutors at the time said they would be pursuing the remaining three.
The directors were initially accused of a total 98 counts of theft by a person in special relationship, along with dozens of charges of making false statements by a promoter over their roles in companies Mutual Finance and Viaduct Capital.
But as the trial went on, large portions of the charges were dropped by the Crown, expert witnesses were replaced, there were multiple adjournments and several applications to stay proceedings.
Justice Mark Woolford in May declared a mistrial after ruling prosecutors had breached disclosure rules by not giving the defence relevant documents - the problem only discovered near the end of defence evidence.
At the start of the trial, prosecutors told the court Strategic Finance founder Bublitz and Viaduct chief executive Nick Wevers - who died in 2014 - set up Viaduct to get more cash for their various struggling property developments - but didn't tell investors about the links between the companies.
Bublitz, according to prosecutors when the trial began last August, allegedly used the two finance companies to support his property investments.
The other defendants in the case were accused of helping him.
All the defendants denied the allegations against them and say they will continue to defend themselves in a re-trial.
A fifth accused, Peter Chevin, was sentenced to nine months' home detention after pleading guilty at the start of the trial.
