Peter H. Walsh

Peter H. Walsh

Office Managing Partner
Minneapolis, Denver

Peter Walsh is a seasoned problem solver with the unique blend of experience as a public-company executive and government official with significant trial experience and a proven ability to deliver practical solutions to clients.

Prior to re-joining Hogan Lovells in 2015 as a partner focusing on investigations, class actions, health care, and other complex litigation, Peter served as Chief of Litigation and Government Investigations and Senior Deputy General Counsel of UnitedHealth Group (UHG). He handled the most significant legal matters for this Fortune 10 company, including the largest stock-option backdating investigation in U.S. history, congressional and government investigations, and hundreds of cases ranging from regulatory enforcement proceedings to complex securities and healthcare class actions.

At UHG, Peter saw first-hand the challenges that companies confront each day and the pressures in-house counsel face managing a heavy and diverse docket. He recognizes the importance of delivering business-oriented, pragmatic solutions to management that account not only for legal risk, but the company's operational priorities and the expectations of shareholders, customers, and other constituencies. Collaborating with business leaders, government affairs, public relations, and the in-house team, Peter navigated a variety of crises with an eye towards minimizing disruption and reputational impact, while balancing risk with the goals of the business. And as the lawyer responsible for managing outside counsel relationships, Peter appreciates the value of cost-efficient and actionable legal advice delivered by counsel familiar with the company's operations and mission.

Prior to UHG, Peter was a federal prosecutor in Denver, where he obtained convictions in high-profile securities, tax, accounting, and other economic-crimes investigations and jury trials. He currently serves as an Adjunct Professor of Trial Practice at the University of Minnesota Law School.

Education and admissions


J.D., Harvard Law School, cum laude, 1997

B.A., Middlebury College, magna cum laude, 1992


American Arbitration Association, Board Member, Healthcare Dispute Resolution Advisory Council, 2012-present

American Arbitration Association, Member, Counsel of the American Arbitration Association, 2020

Colorado State Land Board, Commissioner, 2006-2007

House of Charity, Board Member, 2008-2014

Mid-Minnesota Legal Aid, Board Member, The Fund for Legal Aid, 2014-present

Mid-Minnesota Legal Aid, Vice Chairman, The Fund for Legal Aid, 2018-2020

Adjunct Professor of Trial Practice, University of Minnesota Law School, 2018-present

Bar admissions and qualifications



Representative experience

Represented leading global pharmaceutical company in the defense of multiple state Attorney General investigations.

Lead trial counsel for software-as-services company in suit against Washington Department of Insurance.

Defended leading managed care organization in multiple false claims suits and related disputes.

Conducted a variety of investigations on behalf of healthcare companies, including allegations of Medicaid/Medicare fraud and state insurance code violations.

Conducted FCPA due diligence and compliance review for significant public company acquisition in Brazil.

Defended corporations and senior executives in many high-profile U.S. Congressional investigations and Committee hearings.

Successfully managed dozens of sensitive internal investigations of accounting fraud, privacy breach, insider trading, and regulatory violations.

Successfully navigated largest stock options backdating investigation in U.S. history following US$1.5bn restatement.

Experience with multiple state and federal agencies including DOJ, SEC, FINRA, HHS-OIG, CMS, FTC, and state attorneys general.

Regularly tried cases before juries and argued in the 10th Circuit Court of Appeals as an economic crimes federal prosecutor.

Latest thinking and events

Hogan Lovells Publications

DOJ Announces FCPA Enforcement Pilot Program

Published Works

Handling Internal Investigations – Best Practices for Investigating Alleged Fraud, Bribery, Regulatory Noncompliance, and other Corporate Wrongdoing Minnesota Continuing Legal Education

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