Lawyers for the family of Seán Quinn have been given permission by the High Court to bring an application to stop representing them.
In a statement, the Quinn family said that due to the financial position they had been forced into by the former Anglo Irish Bank's "hostile takeover" of their companies and court orders obtained by the bank, they had been forced to instruct their solicitors to withdraw from representing them.
The application will be heard on Monday.
The lawyers have applied to continue to represent Seán Quinn Jnr in his appeal against the High Court's decision to jail him for contempt of court.
That appeal will be heard on 2 October.
In a statement the IBRC noted the motion and said that it would be inappropriate to speculate on the reasons for such a withdrawal.
It said however that the Court has made express provision for the discharge of reasonable legal expenses arising from the Quinn family litigation.
