Bankruptcy action a risk if any court order to return money to liquidators not obeyed.
Bankruptcy action could be brought against Ross Asset Management investors who don't comply with any orders to return payouts.
David Ross' victims lost around $115 million when his company collapsed in November 2012. The former financial adviser ran a Ponzi-scheme through his Wellington business and disguised it by falsely reporting clients' investments. His scheme reported false profits to investors of $351 million between June 2000 and September 2012 from the purported trading of fictitious securities.
RAM's liquidators have long signalled they may try to claw back money from investors who received a payout from the company before it collapsed.
John Fisk and Duncan Bridgman have asked three investors to return $3.8 million. No agreement between the parties could be reached and the liquidators said in a report this week that it was anticipated legal action would be filed "imminently" with the High Court.