From Acolatse v. Astrue, 2011 U.S. Dist. LEXIS 4835 (N.D. Cal. Jan. 12, 2011):
Kalagian's claim that continuing to pursue this matter on behalf of Acolatse may subject him to sanctions under Rule 11 of the Federal Rules of Civil Procedure qualifies as a permissible reason for withdrawal. See e.g., Collins v. Astrue, No. 1:08-CV-00 ...
From Acolatse v. Astrue, 2011 U.S. Dist. LEXIS 4835 (N.D. Cal. Jan. 12, 2011):
Kalagian’s claim that continuing to pursue this matter on behalf of Acolatse may subject him to sanctions under Rule 11 of the Federal Rules of Civil…