Italian side are believed to be unhappy with the role of the player's agent after his big-money summer move from Serie A to Ligue 1
Palermo president Maurizio Zamparini is reportedly set to take legal action against Javier Pastore's agent following the midfielder's sale to Paris St Germain.
The Argentina international moved to the Ligue 1 side for €42 million (£36.9m) in the summer, but part of the transfer fee went to the playmaker's advisor Marcelo Simonian, and his company Ten Football Corporation.
According to Repubblica, the eccentric club owner has filed a complaint to the Prosecutor of Palermo regarding the amount of money that the South American's representative gained from the deal.
As Simonian owned part of the player's rights, Ten Football Corporation gained €12.5m (£10.9m) of the sale, but Zamparini has complained, alleging that the agent wanted more of the fee, which almost stopped the deal going through.
Prosecutor Maurizio Scalia will work alongside the Core Tax Financial Police to investigate the legalities of the 22-year-old's move to France.