Jane became a member of the firm’s policy committee (the firm’s governing body) in 2019, after serving for several years as co-chair of the global litigation and enforcement practice. Jane focuses her practice on complex business litigation, class action litigation, and antitrust matters, including in large part, matters for health care and life sciences clients.
Jane has been named the Best Lawyers “Lawyer of the Year” for Antitrust in Boston for several years, including for 2026. Jane also maintains a Chambers Band 1 ranking. According to Chambers USA: Jane Willis “is an extremely strong critical thinker. She can navigate really complex questions and provide advice that can be shared with business leaders.”
As a part of her antitrust practice, Jane represents clients in mergers and acquisitions subject to antitrust merger review by the Federal Trade Commission, the Department of Justice, and state Attorneys General. She also represents clients in civil antitrust investigations by the FTC and DOJ and state AGs.
Jane represents a wide range of clients including health care systems, publicly-traded companies, real estate investment trusts, and private equity funds. Her health care and life sciences client list includes hospitals and health care systems, health and dental payors/insurers, physician practice management companies, medical device and biotech companies, pharmacies, home health care providers, and senior living providers. In addition to health care, Jane has handled antitrust matters for a range of industries including consumer products, sports, hospitality, and transportation.
Jane has been interviewed for her antitrust experience by various publications including The Wall Street Journal, The Boston Globe, Los Angeles Times, Fortune, Legal Times, National Law Journal, Competition Law 360, Health Law 360, Modern Healthcare, Reuters, Associated Press, and Bloomberg News Services.
Experience
Representative antitrust transactional matters include:
Jane has extensive experience in antitrust merger advocacy for health care providers and other clients at the Federal Trade Commission. By way of example, Jane has advised on antitrust transactions involving hospitals, outpatient facilities, and specific physician specialties, such as cardiology and anesthesiology. Jane has advised and advocated on behalf of health care provider clients in many states, including: California, New York, New Jersey, Pennsylvania, Illinois, Wisconsin, North Carolina, Georgia, Florida, Texas, Arizona, Colorado, Utah, Maine, New Hampshire, Massachusetts, and Connecticut.
Representative litigation matters include:
- Welsh, Carson, Anderson & Stowe. Secured dismissal of a first-of-its-kind FTC enforcement action in federal court in Texas against private equity firm Welsh, Carson, Anderson & Stowe for alleged anticompetitive conduct, seeking to hold the sponsor liable for its portfolio company’s actions. This major win for the private equity industry was highlighted in a Wall Street Journal editorial entitled “Another Lina Khan Theory Loses in Court”. In addition, obtained dismissal of two follow-on antitrust class action lawsuits.
- Advocate Aurora Health. Lead counsel for non-profit health care system in two class action lawsuits alleging antitrust violations related to managed care contracting practices, provider contractor practices, and acquisitions of other providers.
- Algorithmic Pricing Litigation. Representing multiple health care and real estate clients in litigation challenging algorithmic pricing tools, securing the first case dismissal with prejudice in this space.
- Zelis Healthcare. Representing Zelis in consolidated class action litigation filed in Massachusetts federal court against Zelis and five major insurance providers alleging defendants anticompetitively suppressed reimbursement rates for out-of-network medical and dental healthcare services.
- Mallinckrodt Pharmaceuticals. Lead counsel for a pharmaceutical manufacturer in a lawsuit brought by a coalition of state attorneys’ general against 26 pharmaceutical companies and 10 executives. The lawsuit alleges a conspiracy to inflate and manipulate the prices of dozens of generic drugs.
- Boston Children’s Hospital. Successfully defeated three preliminary injunction attempts, and successfully defeated a challenge to a determination of need, brought by opponents of a much needed modernization and expansion project to build, among other things, a state-of-the-art NICU and heart center at Boston Children’s Hospital.
- TravelCenters of America. Lead counsel for Fortune 500 Company in multiple litigation and arbitration matters, including federal antitrust litigation, multi-district consumer class actions for 28 states, and a successful trial against a card issuer in Delaware Chancery Court.
- IASIS Healthcare. Lead counsel for for-profit health system in multiple matters, including in defense of class action antitrust litigation, in antitrust litigation over peer review matters, and in mergers & acquisition disputes.
- Leading Pharma Company. Lead counsel in successful defense of attempt by distributors to obtain a preliminary injunction against change in distribution system for top-selling specialty drug.
- HealthSouth. First-chair trial counsel for a publicly traded REIT in a successful trial against HealthSouth involving certain rehabilitation hospitals.
- Boston Red Sox. Lead trial counsel in a successful trial in U.S. Bankruptcy Court and first chair counsel in a preliminary injunction proceeding in U.S. District Court to ensure the establishment of an entertainment concourse on game days on Yawkey Way near Fenway Park.