Meet Our Team
This combination of technical and interpersonal skills is unparalleled in the industry and is the secret behind Tier One Tax's exceptional service to deliver high quality and responsible service.
Tatyana Kim, CPA tax advisor Tatyana brings several years of experience in accounting and tax services, with a strong focus on accuracy, compliance, and delivering practical, client‑focused solutions. She specializes in individual and business tax planning, financial reporting, and advisory support, leveraging her ability to communicate complex information in a clear and approachable way.
Originally from Uzbekistan and now a Colorado resident of 12 years, Tatyana combines technical expertise with a thoughtful, detail‑oriented approach to help clients make confident financial decisions. Outside of work, Tatyana enjoys reading, taking dance classes, and exploring Colorado’s hiking trails with her two children. These interests keep her grounded, energized, and organized — qualities that shape her commitment to building trusted, long‑term relationships and providing dependable, responsive service. |
Garret Jett, APMA® Founding principal Garret is our Founding Principal, bringing 27 years of experience as a Financial Advisor to guide clients toward their financial aspirations. Renowned for his commitment to exceptional service, Garret builds deep, personal relationships to understand each client’s unique goals, crafting tailored strategies for their short- and long-term success.
A Hawaii native and U.S. Army Infantry veteran who served at Fort Carson, Garret now calls Highlands Ranch home, where he lives with his wife, Tracy. Outside the office, he enjoys cycling, off-road adventures, and skiing. Garret is a proud father to Austin and Morgan. |
Joseph P. Duran, CPA Tax Advisor Joseph has over 30 years of business, tax and financial executive experience and is a member of the Colorado Society of CPA's. Joseph has several years' experience working on tax planning for high net worth individuals and investment clients. His tax expertise also includes business (Corporations/Partnerships), individuals, rentals, self-employed and trust tax returns. He is also a Licensed life insurance producer in the State of Colorado.
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Tracy Jett DIRECTOR OF OPERATIONS Bio in the Works
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Logan Wilson CLIENT AND OPERATIONS COORDINATOR Logan serves as our Client and Operations Coordinator, supporting the Tax Department with precision and dedication. He plays a vital role in ensuring smooth operations and exceptional client service by supporting workflows, assisting with tax-related processes, and contributing to the overall efficiency of the team. With a Bachelor of Science in Finance from the University of Colorado Denver, Logan brings a strong analytical foundation and a passion for delivering client-focused solutions. His attention to detail and collaborative approach make him an indispensable part of the team.
Outside the office, Logan enjoys snowboarding in the Rockies, playing golf, and cheering on the Georgia Bulldogs. |
Kathy Leopold Executive Assistant With more than 25 years of experience in the financial services industry as an Executive Assistant, Kathy uses her extensive background in marketing and client service to help create a seamless experience between the team and the client. She primarily supports the wealth management side of the business, but also assists the tax team whenever needed to ensure smooth communication and workflow across both areas.
Kathy loves to travel. She often spends holidays in the mountains of Knoxville, TN, where two of her children and their spouses live with a total of five grandchildren. She frequently travels between Washington, DC and Fredericksburg, VA to visit three more grandchildren and their spouses — one of whom made her a proud great‑grandmother. With her oldest daughter living in Europe for the past five years, Kathy has explored the Eiffel Tower, toured the Vatican Museum, and seen the canals of Venice. Souvenir shopping is one of her favorite parts of traveling, and she hopes for another European adventure soon. Kathy’s zeal for helping others extends beyond the office. She has volunteered with Habitat for Humanity, participated in cancer research walks, and supported local charity shops. Her favorite people are those who make her laugh. |
Mary Cate Barton Director of Client Services Bio in the Works
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The CPA designation, awarded by state boards of accountancy, reflects rigorous education, examination, and experience requirements, including mastery of tax preparation, financial reporting, and auditing standards. CPAs are authorized to prepare and file tax returns, provide tax planning strategies, and represent clients in certain IRS matters. With a commitment to ongoing continuing education, CPAs deliver precise, compliant, and strategic tax solutions to support clients’ financial goals.
Certified Financial Planner Board of Standards, Inc. (CFP Board) owns the CFP® certification mark, the CERTIFIED FINANCIAL PLANNER™ certification mark, and the CFP® certification mark (with plaque design) logo in the United States, which it authorizes use of by individuals who successfully complete CFP Board’s initial and ongoing certification requirements.
Enrolled Agents (EAs), are federally licensed tax practitioners admitted to practice before the Internal Revenue Service (IRS). The EA designation, the highest credential awarded by the IRS, signifies extensive expertise in tax preparation, planning, and representation. Enrolled Agents are authorized to represent taxpayers in all IRS matters, including tax preparation, audits, collections, and appeals. EAs must pass a rigorous IRS examination and maintain ongoing continuing education to uphold their credential, ensuring clients receive informed, high-quality tax guidance.
Certified Financial Planner Board of Standards, Inc. (CFP Board) owns the CFP® certification mark, the CERTIFIED FINANCIAL PLANNER™ certification mark, and the CFP® certification mark (with plaque design) logo in the United States, which it authorizes use of by individuals who successfully complete CFP Board’s initial and ongoing certification requirements.
Enrolled Agents (EAs), are federally licensed tax practitioners admitted to practice before the Internal Revenue Service (IRS). The EA designation, the highest credential awarded by the IRS, signifies extensive expertise in tax preparation, planning, and representation. Enrolled Agents are authorized to represent taxpayers in all IRS matters, including tax preparation, audits, collections, and appeals. EAs must pass a rigorous IRS examination and maintain ongoing continuing education to uphold their credential, ensuring clients receive informed, high-quality tax guidance.