O'Brien (51), of Kilmore, Monkstown Grove, Dublin, faces 19 charges of theft of sums totalling about €11m from five individuals and 19 charges of deception of the same people, which all allegedly occurred between 2006 and 2008.
Further charges allege deception involving €1.9m.
Patrick McCullough, defending, told Dublin Circuit Criminal Court that the matter is now subject to a judicial review.
Refusing his application to adjourn the matter, Judge Mary Ellen Ring said she was anxious to set a trial date as soon as possible.
She adjourned the case for arraignment on April 9, telling O'Brien's counsel: "You should have all your documentation by the end of February. You have then until April to consider matters."
Campaign to move Salieri
A CITY in Italy is seeking to reclaim the remains of its best-known son, composer Antonio Salieri.
Salieri left his birthplace of Legnago, south of Verona, as a teenager to pursue his musical ambitions in Vienna, where he remained until his death in 1825.
A campaign group now wants to recover the composer's remains from a Vienna cemetery.
Dead schoolgirl thrown from car
POLICE in Jamaica have launched a hunt for a suspect who dumped the body of a 14-year-old girl from his car.
Residents in a Kingston neighbourhood reported seeing a body being pushed out of a silver Mitsubishi car.
Investigators say they identified the girl as Shariefa Saddler, who was last seen leaving home for her high school after dawn.