Mark Hamilton
Mark HamiltonSenior Associate Attorney
  • Tax Law
  • Business Law
  • Business Sales Transactions
  • TEI Distinguished Member Award
  • Illinois: 1987
  • Colorado: 2002
  • Kansas: 2011
  • Alaska: 2013
  • US Supreme Court: 2009
  • US Tax Court: 2003
  • US District Court for Colorado: 2003
  • US 10th Circuit Court of Appeals: 2003
  • DePaul University, LL.M in Taxation 1989
  • Northern Illinois University, JD 1986
  • Northern Illinois University, BS 1983
  • Colorado Bar Association
  • Alaska Bar Association
  • IL Bar Association
  • Association of Corporate Counsel
  • Tax Executives Institute

Mark Hamilton is an attorney who focuses his practice on tax planning and research, tax appeals and litigation relating to federal, international and state and local tax matters for corporations, partnerships and individuals. Formerly Vice-President of Tax with Arctic Slope Corporation, Mark has also held executive tax management positions at Koch Industries, Inc., Qwest Corporation, Wal-Mart Stores, Inc. and The Upjohn Company.

Mark brings a broad-based background in four different industries: Pharmaceutical, Retail, Telecom and Oil and Gas. His experience includes more than 34 years of corporate tax law practice for both public and private companies across a variety of industries and countries.

Internationally, Mark spent two years in Stockholm, Sweden, as European Tax Counsel where he liaised with foreign operations on tax matters. While in Sweden, Mark worked to develop a European tax controversy practice and actively managed mergers and acquisitions. Mark has also represented pro-bono cases before the United States Tax Court.

Mark’s experience includes representing individuals, public companies and private companies on federal, international and state income tax issues including transactional and planning matters. Mark advises clients on structuring tax-free and taxable acquisitions and dispositions, tax-free spin-offs, and internal restructurings, including providing opinion letters and seeking favorable advance rulings from the IRS. He combines his controversy and transactional background to advise clients on certain specialized tax issues, such as international tax reporting obligations, Qualified Opportunity Funds, Qualified Small Business Stock, parity laws and penalty abatement.

Mark’s work includes clients with digital currency transactions and the intricate tax rules that govern investment and structure. Mark advises clients across a comprehensive range of domestic tax policy issues, including corporate, partnership, healthcare, tax-exempt organizations, energy, state and local tax, income tax accounting, estate and gift, tax administration and procedures. Mark has successfully represented clients in Tax Court and administrative hearings and has the experience, respect and persistence to work assiduously with the IRS to minimize and resolve client’s complex tax issues.

Mark is a member of the Bar of the United States Supreme Court, the 10th Circuit Court of Appeals, the Colorado Federal District Court and the United States Tax Court. Mark is also a member of the Bar of the States of Colorado, Alaska and Illinois. He is a member of the Tax Section of the Alaska, Colorado and American Bar Associations.

Mark received his Masters of Tax Law (LL.M.) from DePaul University, a Juris Doctorate from Northern Illinois University and a Bachelor of Science degree in Accounting from Northern Illinois University.

When not working, Mark and his wife enjoy skiing, hiking in the mountains and everything the West has to offer.