LAS VEGAS , Nevada ( CNN ) -- Former football great O.J . Simpson , convicted of armed robbery and kidnapping , deserves leniency in sentencing as he is a first-time offender who showed no criminal intent , his attorney says in court papers . O.J . Simpson should receive a six-year sentence in a 2007 hotel room confrontation , his attorney says . Attorney Gabriel Grasso argued that Simpson should receive the minimum sentence , six years . Grasso acknowledged in court papers , `` Clearly Simpson was not using good judgment '' during a 2007 hotel room confrontation over sports memorabilia . Simpson could receive a maximum life sentence from Judge Jackie Glass on Friday . A pre-sentencing report recommended an 18-year sentence . On October 3 , a jury convicted Simpson , 61 , and co-defendant Clarence `` C.J . '' Stewart of 12 charges , including conspiracy to commit a crime , robbery , assault and kidnapping with a deadly weapon . Watch Stewart talk about the night they were arrested » . Their convictions stem from a September 13 , 2007 , fracas at the Palace Station Hotel and Casino in Las Vegas . Prosecutors alleged that Simpson led a group of men who used threats , guns and force to take sports memorabilia from dealers Bruce Fromong and Al Beardsley . Simpson said he was attempting to recover items that belonged to him . Four men charged with Simpson cut deals with the prosecution and testified against him . One testified that Simpson asked him to bring a gun to the encounter . `` These were not crimes committed on strangers , but were acts stemming from prior relationships with the individuals in the room at the Palace Station , '' Grasso wrote in the memorandum . `` There was overwhelming evidence at trial that Simpson 's intent was to recover property that was his and only his , '' the lawyer argued . `` The trial testimony showed Simpson 's intent was to return anything that did not belong to him . This intention can be heard throughout the recordings of the Palace Station incident . '' He added , `` However , there is nothing in the record to show that Simpson evinced a criminal mind or showed the requisite criminal intent . '' Because of that and other factors , Grasso wrote , Simpson 's sentence should fall on the low end of the minimum sentencing range . In a sentencing brief for Stewart , 54 , defense attorney E. Brent Byron said his client also should be sentenced to six years , noting he `` did not kill anyone , nor did he bind or gag anyone . '' He had no weapon and `` no witness testified that Mr. Stewart knew that weapons were going to be used , '' the brief said . Both sentencing memorandums note that one of the victims , Beardsley , did not even want the case prosecuted . Attorneys for both Simpson and Stewart have filed motions seeking a new trial . Simpson 's lawyers cite seven reasons why a new trial should be granted in their brief , including that he was denied a fair hearing when two African-Americans were dismissed from the potential jury pool . An all-white jury convicted the men .
NEW : Probation report recommends 18 years ; defense asks for six . O.J . is found not guilty of murder in the death of his wife Nicole Brown Simpson, but convicted on a lesser charge of armed robbery and sentenced to serve only 6 1/2 years. Judge to sentence Simpson on Friday in Las Vegas sports memorabilia case .