Annica Mae Mattus

Associate

District of ColumbiaMarylandNew YorkWashington

Offices

District of Columbia

1776 Eye Street NW, 6th Floor

Washington, DC 20006

Practice Areas

Appellate Litigation

Construction & Construction Defects

General Litigation & ADR

Premises Liability

Product Liability

Professional Liability

Subrogation

Experience

Annica Mae is an Associate in the firm’s Washington, D.C. office.

Annica Mae's practice is in complex civil litigation across a variety of areas including commercial litigation, construction defect claims, product liability litigation, real estate matters, multijurisdictional toxic torts litigation, and landlord-tenant litigation. She has experience at every stage of litigation and achieved dismissal, summary judgment full defense verdicts, and settlements for her clients with a focus on cost-benefit analysis and maintaining her corporate clients' business relationships. She also supports appellate litigation to sustain favorable outcomes for clients.

In addition to her achievements for her corporate clients, Annica Mae has pro bono experience representing clients human trafficking, disability, and family law. After graduating from law school, Annica Mae clerked for the Honorable Brian F. Holeman and the Honorable Jennifer M. Anderson at the Superior Court of the District of Columbia.

Court Admissions

District of Columbia Court of Appeals

United States District Court for the District of Columbia

Supreme Court of Maryland

United States District Court for the District of Maryland

New York State Court of Appeals

Washington Supreme Court

Supreme Court of the United States

Notable Matters

Achieved defense verdict following trial against $14.5 million claim asserted by District of Columbia as second-chair attorney.

Settled landlord-tenant case with over 510 plaintiff-tenants asserting multi-million dollar claim under the D.C. Rental Housing Act.

D.C. Bar 2026 Voluntary Bar Association of the Year Award as Director of the Asian Pacific American Bar Association Educational Fund.

Education

American University School of Law, J.D., 2018

University of Washington, B.A., 2015; Mortar Board National Honor Society, Tolo Chapter

Professional & Community Affiliations

American Bar Association

New York State Bar Association

Asian Pacific American Bar Association

Asian Pacific American Bar Association Educational Fund, Board Director from 2024-2026