Lawyers for Sharif met him in the high-security Adiala jail and obtained his signatures on the papers of attorney, the paper quoted sources privy to the legal team of the three-time prime minister as saying.
The legal team will not only challenge the accountability court's verdict against the Sharifs, but they are also planning to file two more appeals against the law ministry's notification for jail trial and for transfer of two more pending corruption cases Al-Azizia and Flagship before accountability court Judge Mohammad Bashir.
In the July 6 judgement, Judge Bashir acquitted Sharif of the charge of corrupt practice, but convicted him, his daughter Maryam and son-in-law Safdar for owning assets beyond means and awarded 10 years jail to Sharif, seven years to Maryam and one year to her husband Safdar.
Leading advocate Khawaja Haris would lead the legal team of Sharif, the report said.
Three miscellaneous applications would also be filed for suspension of verdict of Judge Bashir before the IHC Court tomorrow, it said.
Sharif's legal team will also file the appeal against dismissal of an application by Judge Bashir of the accountability court, seeking transfer of Al-Azizia and Flagship cases to another judge.
A separate petition against the notification issued by the caretaker government for conducting the trial of Sharif in Adiala jail will also land in the IHC next week, the report said.
Meanwhile, the subcommittee of the caretaker federal Cabinet on Saturday recommended placing the names of Sharif and Maryam on the Exit Control List (ECL).
A senior official said their names had been recommended to be added to the ECL on the request of the National Accountability Bureau. Persons placed on the ECL are barred from leaving the country.
Sharif's wife Kulsoom is on ventilator at a hospital in London. She has been undergoing treatment for throat cancer.