Allison P. Altaras

Karen Dunahay, 303.575.7586


Allison Altaras represents landowners, developers, and business clients of all sizes in a wide range of legal matters, including purchase and sale transactions, title and survey review, land use and development approvals, cost and revenue sharing agreements, private covenants, and leasing matters.  Allison also handles due diligence on water rights associated with land transactions, water rights conveyancing, and negotiations with public and private water providers over land development issues.

Prior to joining Otten Johnson, Allison practiced water and environmental law, representing municipal, commercial, and industrial water users in the adjudication and protection of their water rights.  Allison also served as an appellate law clerk for Hon. Gregory J. Hobbs, Jr. of the Colorado Supreme Court and interned with the Denver Board of Water Commissioners, the U.S. Department of Justice Environmental and Natural Resources Division, and the Rocky Mountain Land Use Institute.

Allison currently serves on the firm's Marketing & BD Committee and Attorney Development Committee.

Practice Areas

Industries Served


  • Co-Presenter: Residents Gone Wild: When Community Meetings Go Off Script, Rocky Mountain Land Use Institute Annual Conference (March 2019)
  • Presenter: Colorado Land Planning and Development Law, Land Use Case Law Update (March 2018)
  • Contributing Author, Colorado Land Planning and Development Law, Eleventh ed.; Bradford Publishing (2017)
  • Professional Advisory Board Member, University of Denver Water Law Review (2015-Present)
  • Volume 16 Editor-in-Chief, University of Denver Water Law Review (2012-2013)
  • Volume 15 Court Reports Editor, University of Denver Water Law Review (2011-2012)
  • Contributing Author, Rocky Mountain Land Use Institute Model Sustainable Community Development Code (2010-2012)
  • Contributing Author, (2010-2011)

Awards & Involvement

  • Volunteers for Outdoor Colorado - Board of Directors; Executive Committee Member; Chair of Grossman Scholarship Committee
  • Tulane University Early Admissions Program - Alumni Interviewer (2018)
  • ABA Conference Planning Committee - Water Law Section (2016)
  • Colorado Legal Aid Foundation - Associates Advisory Board Member (2014-Present)
  • Denver Legal Nights Volunteer (2014-2016)


  • State of Colorado
  • Colorado Bar Association


  • J.D., University of Denver Sturm College of Law (2013)
  • B.A., Tulane University (2007)


"I support Volunteers for Outdoor Colorado because, as “consumers” of Colorado’s unparalleled outdoor environs and amenities, I believe we have an obligation to care for and steward them for the generations to come."