Bill Callison has extensive practice experience emphasizing corporate law, partnership and LLC law, tax law, and affordable housing and community development finance.
Bill's corporate, partnership and LLC practice includes forming and financing business entities, counseling clients on operational matters and preparing contracts and related documents, corporate and partnership mergers and acquisitions, and advising entities concerning dissolution and dissociation. He has particular expertise in laws concerning fiduciary duties and obligations. Bill frequently serves as an expert witness in matters involving corporate, limited liability company, partnership, limited partnership, contract, professional malpractice and other disputes. He is a commercial arbitrator for the American Arbitration Association.
Bill's national affordable housing practice encompasses low-income housing tax credit syndications and creative debt financing. He has assisted clients with hundreds of low-income housing tax credit deals since 1987, and has completed transactions in many states, from Alaska to Florida. Bill has participated in the development of affordable housing law as an author, a speaker and, recently, as Chair of the American Bar Association Forum on Affordable Housing and Community Development Law. He also has extensive experience implementing historic rehabilitation tax credits, New Markets Tax Credits and federal energy credits.
Bill is a frequent teacher, lecturer and writer on business law topics, including partnership and LLC law. He has also served on numerous law school faculties. He is a Visiting Professor of Law at the Tilburg University School of Law (Netherlands) where he teaches U.S. business organization law and other topics. He has also served as the Thomson Visiting Professor of Law at the University of Colorado School of Law, where he taught income taxation and partnership taxation, the Feeney Professor of Business Law at the University of Ottawa School of Law, where he taught U.S. business organization law, as Visiting Professor of Law at the University of Kentucky College of Law, where he taught tax law, and as Scholar-in-residence at Washington & Lee University Law School.
Bill has expertise on business entities and has participated in drafting Colorado and uniform partnership, limited partnership and limited liability company statutes. He is the American Bar Association's delegate to the United Nations Commission on International Trade Law Working Group I (Micro, Small and Medium Enterprises), which is focusing on law reforms enabling adoption of simplified business entity structures by micro-, small- and medium-sized businesses in developing countries. He serves on the UNCITRAL Secretariat's expert group in this process.