Picture of Shannan Sweeney Rieger

Shannan Sweeney Rieger

Senior Counsel

Shannan Rieger is senior counsel in the Baton Rouge office of Kean Miller. She practices in the litigation group. Shannan represents clients in commercial and business litigation, environmental litigation, toxic tort defense and insurance defense. She has special experience in commercial contract disputes, institutional reform litigation, antitrust litigation, commercial collection matters, municipal liability litigation, and toxic tort litigation. Shannan has served as an adjunct professor teaching Federal Jurisdiction at Southern University Law School.

Representative Experience
  • Representation of municipality in civil rights litigation involving land use decisions
  • Represented the interest of a State in an effort to terminate longstanding consent decree in a class action claim regarding conditions in the state prisons and in a successful effort to terminate longstanding consent decree in a class action regarding treatment of mentally ill and mentally challenged citizens
  • Representation of financial institutions, including federal entities, in numerous commercial collection and lender liability matters
  • Representation of a multinational petrochemical company in a multi-million dollar class action toxic tort claim
  • Representation of a gaming industry client against a multi-million dollar antitrust and civil RICO claim
  • Representation of a financial institution client against consumer claims related to the consumers' purchases of credit related insurances
  • Representation of oil and gas clients in contract disputes and in property damage claims
  • Representation of municipalities seeking to have statutes regarding statewide retirement system contributions declared unconstitutional

Shannan earned her B.S. from Louisiana State University in 1982. She earned her J.D. in 1985 from the LSU Law Center where she was a member of Phi Kappa Phi, the Order of the Coif, and the Louisiana Law Review. She served as a Law Clerk to the late Hon. John M. Shaw, United States District Judge, Western District of Louisiana, from 1985 to 1986.

  • Admitted, Louisiana, 1985
  • Baton Rouge, Louisiana State, American, Federal, and Fifth Circuit Bar Associations
Articles, Publications and Presentations
  • Special Lecturer: Defending a Federal Lawsuit Arising out of a Municipal Land Use Decision, Louisiana City Attorneys Association, 2012
  • Special Lecturer: Civil Motion Practice in the Federal Courts, Baton Rouge Bar Association, 1997
  • Texas Bank of Beaumont v. Bozorg - The Supreme Court Addresses Collateral Mortgages, 46 Louisiana Law Review 387, 1985
  • The Intentional Act Exception to the Exclusivity of Worker's Compensation, 44 Louisiana Law Review 1507, 1984
Community Service
  • Judge, American Bar Association National Appellate Advocacy Competition
  • Judge, American College of Trial Lawyers' National Moot Court Competition
  • Judge, Paul M. Hebert Moot Court Competition
  • Pi Beta Phi Sorority Financial Advisor
  • Vice President and Board Member, West Point Parents Association of Louisiana