John M. Callahan advises clients on mergers and acquisitions (M&A) in the health services and life sciences industries. He represents private equity firms, academic medical centers and health systems, governmental entities and other health care companies in the acquisition and divestiture of businesses and business lines. As deal counsel, John handles high-profile US and international transactions, as well as a variety of change-of-control transactions designed to address the strategic positioning needs of private, governmental and nonprofit entities. He is the head of the Firm's International Health M&A Practice.
John provides strategic and legal advice on operational issues unique to health care companies, including the creation of business ventures and arrangements designed to address the changing needs of health systems in light of health reform legislation. He is actively involved in the creation of hospital service line management and branding relationships between academic medical centers and regional health systems in the United States and internationally.
John also has developed and executed cutting-edge legal and financing structures for the development of large capital projects, such as medical parks and proton therapy centers. He is recognized for his knowledge in developing and negotiating complex, multi-party contracts that document unusual or unique business relationships between the contracting parties. He also advises clients on corporate governance and compliance issues, and on wholesale reorganizations of corporate systems.
John is an associate professor of law at Loyola University of Chicago, and he serves as a guest lecturer at Northwestern University's Kellogg Graduate School of Management and Northwestern University Law School.