Mimi Liu protects public resources and interests through investigations and litigation filed for state attorneys general, governments, and other public entities.


Prior to joining Motley Rice, Mimi represented public clients in consumer protection and civil enforcement matters at a law firm in D.C. In litigation filed for the Mississippi Attorney General, she investigated national credit bureaus accused of violating state and federal laws by failing to maintain accurate credit files, ultimately recovering more than $7 million* in relief and other consumer benefits. 

She litigated claims of deceptive collection practices regarding consumer credit, auto loan and student loan debt, resulting in $9 million in relief and statewide injunctive relief in Mississippi. Mimi represented the New Hampshire Attorney General in litigation alleging deceptive marketing of highly addictive opioid drugs, and recovered millions of dollars in relief for New Hampshire. 

She also represents a state attorney general litigating for consumers alleging harm or economic loss due to deceptive marketing of defective Takata airbags, which was the largest auto-related recall in U.S. history. 

In addition, Mimi advocated for constitutional civil rights as a senior lawyer for Planned Parenthood Federation of America from 2004 to 2012, arguing cases before numerous state and federal trial and appeals courts. 

During her studies at Harvard Law School, Mimi served as executive editor of the Human Rights Journal and co-authored the treatise Gender Asylum Law. Following law school, Mimi clerked for the Court of Appeals of Alberta and for the Honorable Justice Claire L’Heureux-Dubé of the Supreme Court of Canada. 

*Please remember that every case is different. Any result we achieve for one client in one matter does not necessarily indicate similar results can be obtained for other clients. 

Open Bio


  • J.D. cum laude, Harvard Law School, 1999
  • B.Com. with honors, University of Alberta, 1996

Licensed In

  • District Of Columbia
  • New York

Admitted to Practice Before

  • U.S. Supreme Court
  • U.S. Court of Appeals for the Sixth, Eighth and Ninth Circuits
  • U.S. District Court for the District of Columbia


Opioid Litigation

The growing opioid epidemic crosses virtually all demographics, and with more than half a million related deaths recorded in the U.S. since 2015, the crisis has officially been declared a public health emergency.

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