Matt Oster

Matthew J. Oster

Senior Associate

Matthew Oster is an experienced litigator who utilizes analytics and the latest legal technologies to achieve efficient and optimal outcomes for clients. Leveraging his prior career as an analyst for a major online advertising company, Mr. Oster incorporates data analytics into nearly every aspect of his practice. He regularly works with clients, experts, and vendors to ensure the integrity of their data and methodology and to develop more efficient and effective case-management strategies. He also authors analyses of industry and enforcement trends that deliver insights to various stakeholders. In addition to his years of experience, Mr. Oster also holds a Certificate in Business Analytics from the University of Pennsylvania Wharton School of Business.

Mr. Oster represents public and private companies and individuals in complex civil litigation in state and federal court. He has experience with all aspects of litigation, including early case assessment, drafting dispositive motions, discovery, defending depositions, expert discovery, trial, drafting appellate briefs, and preparing for appellate arguments. Mr. Oster also assists clients with government and internal investigations, with experience in negotiating and responding to subpoenas, interviewing witnesses, coordinating with in-house legal departments, conducting and overseeing large-scale document collection and review, representing company witnesses during proffers, and reporting progress and findings to government agencies and other stakeholders. While Mr. Oster's practice focuses primarily on clients in the financial services and securities industries, he has significant experience in antitrust, government contracting, and consumer products matters as well.

Mr. Oster maintains an active pro bono practice, representing clients in affordable housing and criminal defense matters in Washington, DC.

Prior to joining the firm, Mr. Oster interned with the United States Attorney's Office for the District of Maryland and the Major Investigation Unit of the Baltimore City State's Attorney's Office. While in law school, he served as an Editor of the Cornell Law Review.


  • Federal Housing Finance Agency, the Conservator for Fannie Mae and Freddie Mac, in complex litigation pending in dozens of federal and state district and appellate courts:
    • Hundreds of cases nationwide concerning the federal statutory protection extended to the assets of Fannie Mae and Freddie Mac while in conservatorship, including FHFA v. SFR Investments Pool 1, LLC, 893 F.3d 1136 (9th Cir. 2018), Berezovsky v. Moniz, 869 F.3d 923 (9th Cir. 2017), Daisy Trust v. Wells Fargo Bank, N.A., 445 P.3d 846 (Nev. 2019), and Saticoy Bay LLC Series 9641 Christine View v. Fannie Mae, 417 P.3d 363 (Nev. 2018).
    • Litigation brought by shareholders of Fannie Mae and Freddie Mac challenging terms of the funding agreement between FHFA as conservator and the Department of Treasury, including Fairholme Funds, Inc. v. FHFA, No. 13-cv-1053-RCL (D.D.C.).
  • Former directors and officers of a publicly held investment company in parallel shareholder derivative lawsuits in state and federal court.
  • Former employee of SunTrust Mortgage, Inc. in criminal prosecution for wire fraud and conspiracy.
  • Automotive parts manufacturer in civil litigation and state enforcement actions following Department of Justice criminal antitrust investigation.
  • Steel manufacturer in antitrust suit involving claims of price-discrimination and various business torts.
  • Nonprofit government contractor in investigation by the Special Inspector General of Afghanistan Reconstruction (SIGAR).


FTC's Focus on Health Apps: Popular Women's Fertility-Tracking App Settles FTC Privacy Complaint
Enforcement Edge: Shining Light on Government Enforcement
Lopsided Start To Fiscal Year 2021 Outpaces Total False Claims Act Recoveries From 2020
Qui Notes: Unlocking the False Claims Act
Eleventh Circuit Rules on FCA Materiality and Litigation Funding Agreements (pdf)
Pratt's Government Contracting Law Report, Vol. 6, No. 12
With Few Blockbuster Settlements, FY 2020 False Claims Act Recoveries Fall to Their Lowest Level Since 2008
Qui Notes: Unlocking the False Claims Act
DOJ's Evolving Use of Data Analytics in Pursuing PPP Fraud
Enforcement Edge: Shining Light on Government Enforcement


  • JD, Cornell Law School, 2013
  • BS, University of Maryland at College Park, 2008
  • BA, University of Maryland at College Park, 2008
  • District of Columbia
  • Maryland
  • US District Court, District of Maryland
  • US Court of Appeals for the Fourth Circuit

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