MINNEAPOLIS—Derek Chauvin has hired an attorney to represent him as he appeals his murder conviction in the death of George Floyd, according to court documents made public Monday. Attorney William Mohrman filed a document with the court Friday saying he would represent Chauvin in his appeal. Chauvin was convicted in April on state charges of second-degree unintentional murder, third-degree murder and second-degree manslaughter in Floyd’s 2020 death. He was sentenced to 22 1/2 years in prison. Chauvin filed documents last month saying he intends to appeal his conviction and sentence on 14 grounds, including that he believes his trial should have been moved from Hennepin County and that the jury should have been sequestered. He asked for a public defender to represent him on appeal, but the state Supreme Court denied that request this month, saying a review of his assets and debts showed he was ineligible. When Chauvin made …