28 U.S.C. § 1927 : US Code - Section 1927: Counsel's liability for excessive costs

Search 28 U.S.C. § 1927 : US Code - Section 1927: Counsel's liability for excessive costs

Any attorney or other person admitted to conduct cases in any
court of the United States or any Territory thereof who so
multiplies the proceedings in any case unreasonably and vexatiously
may be required by the court to satisfy personally the excess
costs, expenses, and attorneys' fees reasonably incurred because of
such conduct.