Municipalities and municipal corporations, as defined by N.J.S.A. 1:1-2, that engage in frivolous litigation are subject to sanctions under the FLS. The Supreme Court of the United States has recognized “that municipalities, unlike States, do not enjoy a constitutionally protected immunity from suit,” Jinks v. Richland County, 538 U.S. 456, 466 (2003), and neither the FLS nor any other substantive law in New Jersey has immunized municipalities from FLS liability for filing frivolous pleadings like the Borough was found to have filed here.