Despite his felony conviction, attorneys for Evan Greebel, the former law firm partner who once advised ex-pharmaceutical executive Martin Shkreli, are urging a judge to impose no jail sentence, arguing probation is sufficient.

In a sentencing memorandum this week, Greebel’s attorneys at Gibson, Dunn & Crutcher attached about 180 letters from family, friends and former colleagues, including those at Katten Muchin & Rosenman and Kaye Scholer, all asking U.S. District Judge Kiyo Matsumoto for leniency.