Businesses turn to litigator Marc Van Allen for counsel on disputes over corporate transactions, joint ventures, partnerships, licenses, and contracts. He has litigated jury and bench trials, represented clients in arbitrations, and argued appeals.
Marc is a member of the firm’s Government Contractor Litigation and Compliance, Business Litigation, Antitrust and Competition Law, and Tax practices.
He has litigated high-stakes matters involving complex quantitative issues, including econometrics, predictive modeling, and statistics. In connection with M&A transactions, Marc has represented Fortune 100 companies in federal and state courts litigating antitrust, fiduciary duty, and breach-of-contract issues.
Marc has assisted a client structure and operate long-term joint ventures involving more than US$150 billion in expected revenue sharing. He has also represented defense contractors in cases before the Armed Services Board of Contract Appeals, the United States Court of Federal Claims, and the US Court of Appeals for the Federal Circuit.
Representative Matters
Mr. Van Allen has represented very large companies on both antitrust aspects of proposed mergers and in structuring several substantial joint venture agreements:
- In connection with a proposed merger, represented a Fortune 100 client in an antitrust lawsuit filed by the Department of Justice to block a merger between the largest and third largest company in the market. In defending the proposed merger, Mr. Van Allen helped develop economic analyses related to market definition, critical loss, unilateral effects and a merger simulation of price effects.
- Represented a Fortune 100 company in structuring and operating several long term JVs involving over $150 Billion in expected revenue. Because the JVs are between competitors in a regulated industry, Mr. Van Allen has provided counseling and analysis regarding numerous antitrust and regulatory issues
Mr. Van Allen’s representations of government contracting company clients in the area of FCA/Qui Tam Defense and Investigations includes the following:
- A CMS contractor in qui tam litigation
- An NSA contractor in DOD IG investigation
- A military aircraft manufacturer in qui tam litigation
- A manufacturer of nuclear submarines in qui tam litigation
Mr. Van Allen’s representation of companies involved in civil litigation before the US Department of Justice includes:
- An aerospace company in tax refund case
- An accounting firm in tax shelter case
- A defense contractor in $5 billion contract dispute
- A missile manufacturer in CERCLA case
Mr. Van Allen has represented a variety of companies in numerous complex commercial litigation matters, including:
- A US company in RICO litigation against Japanese conglomerate
- A Chinese reinsurance company in insurance syndicate dispute
- An international retailer in litigation over an IT-outsourcing contract
- A PC manufacturer in shareholder class action
- An acquiring company in shareholder appraisal case
- A seller in post-closing purchase price adjustment litigation
- An acquiring company in pre-merger litigation
- A board of directors in shareholder derivative case
Credentials
Service / Recognition
Overview
Businesses turn to litigator Marc Van Allen for counsel on disputes over corporate transactions, joint ventures, partnerships, licenses, and contracts. He has litigated jury and bench trials, represented clients in arbitrations, and argued appeals.
Marc is a member of the firm’s Government Contractor Litigation and Compliance, Business Litigation, Antitrust and Competition Law, and Tax practices.
He has litigated high-stakes matters involving complex quantitative issues, including econometrics, predictive modeling, and statistics. In connection with M&A transactions, Marc has represented Fortune 100 companies in federal and state courts litigating antitrust, fiduciary duty, and breach-of-contract issues.
Marc has assisted a client structure and operate long-term joint ventures involving more than US$150 billion in expected revenue sharing. He has also represented defense contractors in cases before the Armed Services Board of Contract Appeals, the United States Court of Federal Claims, and the US Court of Appeals for the Federal Circuit.
Areas of Focus
Representative Matters
Mr. Van Allen has represented very large companies on both antitrust aspects of proposed mergers and in structuring several substantial joint venture agreements:
- In connection with a proposed merger, represented a Fortune 100 client in an antitrust lawsuit filed by the Department of Justice to block a merger between the largest and third largest company in the market. In defending the proposed merger, Mr. Van Allen helped develop economic analyses related to market definition, critical loss, unilateral effects and a merger simulation of price effects.
- Represented a Fortune 100 company in structuring and operating several long term JVs involving over $150 Billion in expected revenue. Because the JVs are between competitors in a regulated industry, Mr. Van Allen has provided counseling and analysis regarding numerous antitrust and regulatory issues
Mr. Van Allen’s representations of government contracting company clients in the area of FCA/Qui Tam Defense and Investigations includes the following:
- A CMS contractor in qui tam litigation
- An NSA contractor in DOD IG investigation
- A military aircraft manufacturer in qui tam litigation
- A manufacturer of nuclear submarines in qui tam litigation
Mr. Van Allen’s representation of companies involved in civil litigation before the US Department of Justice includes:
- An aerospace company in tax refund case
- An accounting firm in tax shelter case
- A defense contractor in $5 billion contract dispute
- A missile manufacturer in CERCLA case
Mr. Van Allen has represented a variety of companies in numerous complex commercial litigation matters, including:
- A US company in RICO litigation against Japanese conglomerate
- A Chinese reinsurance company in insurance syndicate dispute
- An international retailer in litigation over an IT-outsourcing contract
- A PC manufacturer in shareholder class action
- An acquiring company in shareholder appraisal case
- A seller in post-closing purchase price adjustment litigation
- An acquiring company in pre-merger litigation
- A board of directors in shareholder derivative case
Credentials
Admissions
- District of Columbia, 2010
- Illinois, 1992
Education
- University of Michigan Law School, JD, 1992
- University of Chicago, BA, 1989
Court Admissions
- Illinois Supreme Court, 1992
- US Court of Appeals, Third Circuit, 1999
- US Court of Appeals, Seventh Circuit, 1994
- US District Court, Northern District of Illinois, 1993
- US District Court, Eastern District of Michigan, 1999
Service / Recognition
Awards
- Capital Pro Bono Honor Roll, 2022, 2024-2025
- Legal 500 Government Contracts, 2020, 2021
Service to the Bar
- American Bar Association - Section on Litigation