Quinn emanuel trial lawyers

Corey, Jon

Jon Corey



Mr. Corey is co-head of the firm's Washington, D.C. office. 

Over the past decade, Mr. Corey has tried or arbitrated a case a year, on average, including accounting fraud and false claims cases, government contract disputes, trade secret theft cases, real estate and construction disputes, partnership disputes and environmental liability disputes. 

Mr. Corey represents primarily plaintiffs in complex commercial and bet-the-company cases.   These cases have included a variety of claims, including RICO, antitrust and unfair competition, business torts, intellectual property, particularly trade secret misappropriation, violations of the Federal False Claims Act and state derivatives, accounting and securities fraud, and real estate/environmental disputes.

Mr. Corey represents clients involved in transnational disputes and he has advised clients regarding disputes in or involving conduct in Afghanistan, Australia, Belgium, Canada, China, Denmark, East Timor, Finland, France, Germany, Greece, Honduras, Indonesia, Mexico, The Netherlands, Sweden, Syria, Iraq, the United Kingdom and Uzbekistan.

  Representative Clients

  • ClarkDietrich
  • Federal Housing Finance Agency
  • Fannie Mae
  • Freddie Mac
  • General Atomics
  • Invensys
  • Johnson Controls
  • KB Home
  • Mattel
  • Playa Capital Company
  • The Parsons Corporation
  • Trust Company of the West

  Notable Representations

Plaintiff’s Representations

  • Representing the Federal Housing Finance Authority (FHFA), as conservator of Freddie Mac and Fannie Mae, in its landmark securities litigation against JP Morgan, UBS, Deutsche Bank, Goldman Sachs, Merrill Lynch and other major banks for their sales of private-label mortgage backed securities to Fannie Mae and Freddie Mac.   To date, FHFA has settled sixteen cases and recovered approximately $20 billion for the American taxpayer.  Most recently, FHFA won an $800 million trial against Nomura and RBS and continues to litigate a separate $9 billion action against RBS in Connecticut.
  • Representing a construction products manufacturer pursuing antitrust and RICO claims against trade association and its members who adopted sham certification standards in an attempt to exclude the manufacturer’s products from the nationwide market.
  • Representing a minority-owned government contractor pursuing bad faith contact termination claims against a Department of Defense agency.
  • Representing an industrial products manufacturer in a trade secret theft case against a former employee and a foreign competitor.
  • Representing a private equity firm and its primary investor in a breach of fiduciary duty case against former officers of the firm’s investment funds. 
  • Represented an investment management firm whose in-house analytical software and decades of client and performance information were systematically downloaded by key employees who left to form a competing firm.
  • Represented an oil exploration company in a suit alleging that a Fortune 100 corporation violated the antitrust laws when it interfered with the company’s efforts to compete for rights to explore for and produce natural gas and oil in the Timor Sea.
  • Represented a consumer products manufacturer in a trade secret theft and RICO suit against a competitor
  • Represented an acquiring company against the seller for misrepresenting and concealing relevant and material accounting information regarding the financial performance of the target company.
  • Represented a real estate developer in a legal malpractice case against a firm whose lawyers, over a decade, misrepresented to the client both the work conducted and work necessary to obtain federal, state and local permits to proceed with construction of an entertainment complex.
  • Represented a uranium ore processor in a month-long arbitration against parties obligated to pay for the monitoring, decontamination, remediation and decommissioning of a facility in Oklahoma.
  • Represented an investor in an arbitration against a joint venture partner regarding responsibility for lost profits and cleanup costs incurred when the Nuclear Regulatory Commission repeatedly shut down a uranium hexafluoride processing plant due to improper releases of contaminants on-site and off-site.
  • Obtained a multi-million dollar settlement for a real estate developer in a dispute with a joint venture partner over its failure to supervise adequately the construction of the joint venture’s buildings.
  • Represented a software publisher against a foreign heavy equipment manufacturer that improperly accessed, infringed and misappropriated the publisher's source code and defended against claims that the publisher did not properly or adequately implement the software.  
  • Won summary judgment, as a plaintiff, that the defendant infringed two of the client packaging company’s patents resulting in an immediate settlement in excess of $23 million.

 Other Matters

  • Defended the construction manager of Los Angeles' first subway in a six-month trial of false claims acts and breach of contract claims arising from alleged twenty-year pattern of improper accounting and overbilling of overhead, general and administrative and contract-specific costs.
  • Represented Parsons Corporation in a dispute with the federal government over the manner in which environmental clean-up services were accounted for and charged, after the government accused the engineering firm of overbilling millions of dollars.  The government agreed to settle the dispute without Parsons having to reimburse any amount to the government. 
  • Won summary judgment of claims for breach of contract, fraud, and violations of the Federal False Claims Act alleging that an international engineering firm administered its employee stock ownership plan in violation of federal regulations.
  • Won summary judgment of claims for fraud and violations of the Federal and California False Claims Act alleging that a national contractor overcharged a public agency for employee benefits.
  • Obtained a de minimus settlement for an engineering firm accused of violating the Federal False Claims Act by structuring a contract to operate a portion of the State of California's air quality emissions program to permit it to overstate its costs on all federal cost-reimbursement contracts. 
  • Represented clients in both internal investigations and in federal and state agency investigations.
  • Represented government contractors in bid protest proceedings.
  • Won dismissal of a class action accusing a satellite broadcaster of pricing professional sporting event packages in violations of the antitrust laws.
  • Won dismissal of a case accusing a computer manufacturer of violating the antitrust laws by restraining trade in the entry level mainframe computer market.
  • Defended consumer products company against attempted monopolization claims.
  • Won a complete defense victory for a consumer-product manufacturer after a three-week trial, and saved the jobs of 800 employees, by proving that the manufacturer had not breached the master lease of a Southern California manufacturing campus. 
  • Successfully represented national home builder in an arbitration over the purchase of a $50 million parcel of raw land.
  • Obtained a litigation cost settlement on behalf of a master land developer in a dispute with a well-known real estate developer who sought almost $700 million in damages for breach of a series of land purchase agreements after an arbitrator had found the master land developer to have breached the agreements.
  • Primary litigation counsel for the master developer of the largest urban in-fill development in the nation, which included advising on potential disputes and litigating disputes with state and city government and agencies, protestors, Indian tribes, merchant developers and other constituencies associated with the decades-long project.
  • Won a complete defense judgment on behalf of an aerospace company in a one-week trial of a construction dispute.
  • Represented real estate developer in defense of challenges to environmental impact reports for one of the largest urban infill projects in the nation. 
  • Represented a software publisher in a dispute with an aerospace manufacturing company regarding the performance and implementation of publisher’s enterprise resource planning software.


  • J. Reuben Clark Law School, Brigham Young University
    (J.D., magna cum laude, 1996)
    • Brigham Young University Law Review:
      • Executive Editor, 1995-1996
      • Editor, 1994-1995
    • Order of the Coif

  • Utah State University
    (B.A., cum laude, 1993)


The Bar of the District of Columbia; The State Bar of California; The State Bar of New York; United States Courts of Appeals: Federal Circuit, Ninth Circuit; United States District Courts: Central District of California, Southern District of California, Northern District of California, District of Columbia; United States Court of Federal Claims


  • Spanish


  • Mr. Corey was recognized as a Super Lawyer "Rising Star" for five consecutive years.

Publications and Lectures

  • Nine Ways Defense Contractors Can Prepare For Budget Cuts,
    Law360 with Lauren Weeman (June 12, 2012)
  • How To Make Your Life (And Your Lawyer's Life) Easier,
    Annual Government Compliance Roundtable (September 2003)
  • The Discretionary Exercise of Supplemental Jurisdiction,
    1995 B.Y.U.L. Rev. 1263

Professional Activities

  • The State Bar of California:
    Litigation Section, Antitrust and Unfair Competition  Section, Intellectual Property Law Section
  • The Bar of the District of Columbia:
    Litigation Section, Antitrust and Consumer Law Section, Intellectual Property Law Section
  • American Bar Association:
    Litigation Section, Intellectual Property Law Section, Antitrust Law Section
  • International Bar Association
  • American Intellectual Property Law Association
  • Association of Business Trial Lawyers
  • J. Reuben Clark Law School (Brigham Young University) Alumni Board (2004-2011)
  • Executive Committee Member, Public Private Partnership for Justice Reform in Afghanistan (2007-2012)