Danielle Garten's practice includes assisting clients with government reviews of mergers and acquisitions and filing obligations under the Hart-Scott-Rodino Act (HSR). Ms. Garten's practice also includes coordination of multiple internal investigations arising in response to government inquiries related to alleged global cartel activity, including responses to grand jury subpoenas. Additionally, Ms. Garten has experience in various issues relating to requests for judicial assistance filed pursuant to the Hague Convention on the Taking of Evidence Abroad in Civil Commercial Matters.

Ms. Garten also maintains an active antitrust litigation practice. She defends multiple international clients in connection with multi-district civil litigations involving alleged industry-wide, multi-year conspiracies to fix prices and rig bids in violation of the Sherman Act and other laws. 

Ms. Garten's practice also focuses on counseling in the areas of consumer protection and advertising. Ms. Garten is a regular contributor to the blog on consumer marketing legal issues, www.sellerbewareblog.com and has assisted clients in connection with Federal Trade Commission and class action consumer protection litigation, as well as in matters before the National Advertising Division of the Better Business Bureau (NAD).


  • AT&T Inc. in its proposed acquisition of T-Mobile USA from Deutsche Telekom.
  • Water Street Healthcare Partners acquisition of CHS Health Services and Take Care Employer Solutions.
  • AMC Entertainment Inc. in its acquisition of most of the assets of Kerasotes ShowPlace Theaters LLC. Assisted in the counseling of AMC regarding various aspects of the acquisition and compliance with HSR filing requirements. The matter was resolved with the US Department of Justice and various state attorneys general with limited divestitures.
  • Unilever in the sale of its Lawry's & Adolph's spice/seasonings business to McCormick. Helped to counsel Unilever with its response to a second request by the Federal Trade Commission.
  • Medical device manufacturer in response to a second request by Federal Trade Commission in relation to the purchase of certain assets.


2014 Annual Review of Antitrust Law Developments

Contributor, Chapter 1, Restraints of Trade, Section B, Elements of a Section 1 Violation, American Bar Association, Section of Antitrust Law

2014 US Cartel Enforcement Developments
Arnold & Porter Advisory
Consumer Protection Update January

ABA Antitrust Law Section

In Re-Issued Motorola Decision Interpreting the FTAIA, Seventh Circuit Panel Modifies Rationale for Dismissal of Price-Fixing Claims Arising from Foreign Component Purchasing
Arnold & Porter Advisory
One, Big, Happy Advertising Enforcement Family

Seller Beware: Consumer Protection Insights for Industry



Washington, DC Super Lawyers "Rising Star" 2014-2016 for Antitrust Litigation and Criminal Defense: White Collar


  • JD, American University, Washington College of Law, 2006, cum laude
  • BA, Wake Forest University, 2000
  • District of Columbia
  • Maryland
  • US Court of Appeals for the Fourth Circuit
  • US Court of Appeals for the Eleventh Circuit
  • Member, Board of Directors, Voices for a Second Chance


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