Keatinge is Of Counsel to the Denver law firm of Holland & Hart LLP. He practices in the areas of business organizations, taxation, and professional responsibility. He has represented a wide variety of business organizations and their owners, from small start-up companies to publicly traded corporations. In addition, he is an Adjunct Professor of Law at Sturm College of Law, University of Denver, Denver, Colorado.

Mr. Keatinge has acted as an expert witness on matters of business organizations and professional responsibility and has written and spoken nationally in the areas of business law, tax, and professional responsibility. He is the former chair of the Committee on Partnerships and Unincorporated Business Organizations of the ABA Business Law Section, and the former chair of the Committee on Entity Selection of the American Bar Association (ABA) Real Property Probate and Trust Law Section.

In addition, Keatinge has been an ABA Advisor to the National Conference of Commissioners on Uniform State Laws (NCCUSL) Drafting Committee on a Uniform Limited Liability Company Act; the Revision to the Uniform Limited Partnership Act; the Uniform Inter-Entity Merger Act; and the ABA Business Law Section Ad Hoc Subcommittee to Comment on the Revised Uniform Partnership Act.