Attorney Profile Picture

Shannan Sweeney Rieger

Shannan Rieger is an attorney 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 serves as Adjunct Professor at Southern University Law School, teaching Federal Jurisdiction and Procedure. 

Representative Experience

  • Representation of municipality in civil rights litigation involving land use decisions
  • Representation of the State of Louisiana in an effort to terminate longstanding consent decree in a class action claim regarding conditions in all Louisiana prisons and in a successful effort to terminate longstanding consent decree regarding treatment of mentally ill and mentally retarded citizens of Louisiana
  • Representation of financial institutions, the Federal Deposit Insurance Corporation and the Resolution Trust Corporation, 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
  • 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, 2013
  • Judge, American College of Trial Lawyers' National Moot Court Competition, Region VII, 2012
  • Advisory Board of Directors, Cenikor Foundation
  • Volunteer Instructor, Junior Achievement
  • Member, Junior League of Baton Rouge
  • Community Fund for the Arts Campaign, Attorneys Division
  • Member, Board of Trustees, Executive Committee, Baton Rouge Ballet Theatre
  • Volunteer, St. Aloysius Catholic Church
  • Volunteer, Episcopal School
  • Volunteer, University Lab School