Donald joined Freehills in 1982. He was appointed a partner in 1987. He is Adjunct Professor of Law at Sydney Law School, The University of Sydney. Donald teaches at undergraduate and postgraduate level in the areas of contract and commercial law and regulatory law and economics.
He teaches a postgraduate course on transnational commercial law – International Law of Contract. This course explores the use of international instruments to unify commercial law, using the transnational principles of contract law found in the UNIDROIT Principles of International Commercial Contracts as a foundational statement of the law of international commerce (the new lex mercatoria). In 2011 he co-taught the undergraduate course, Advanced Obligations and Remedies with respect to post-contract change of circumstances and the excuses available to commercial parties in international trade and commerce.
He is the author of numerous contributions to legal journals, chapters in books and other publications including the Journal of Contract Law, Australian Business Law Review, Australian Law Journal, Competition and Consumer Law Journal, Trade Practices Law Journal, New Zealand Business Law Quarterly, the AMPLA Yearbook, the Australian Journal of International Law and the Australian Resources and Energy Law Journal. He is a contributor of the entries on Trade and Commerce, Equity, Estoppel and Trusts to the Butterworths Australian Legal Dictionary.
A graduate of the University of Sydney with First Class Honours degrees in Economics and Law, Donald won the Randolph G. Rouse Prize as top graduate in his Economics Honours year. He holds a Master of Laws degree from Columbia University, New York, where he was the Robert Burton Fellow and the Centre for Law and Economics Studies Fellow.
In 2005 Donald was Visiting Professor at Sydney Law School. He has been Principal Fellow and Associate Professor at Melbourne Business School, The University of Melbourne.
In 1995-96 he was Visiting Scholar at Northwestern University Law School, Chicago.
Donald is a member of the Editorial Board of the Journal of Contract Law.
In 2010 he was elected a Fellow of the Australian Academy of Law, one of Australia’s ‘learned Academies’ in recognition of the distinction of his career in the law.