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Administrative Staff

Nancy C. Carter
Office & Billing Manager
Email Nancy
303-449-3060 ext. 105
Direct 303-951-6016
Fax 303-951-6017

Nancy grew up in a large household in Pennsylvania where she felt compelled to organize her father's offices and mother's cupboards. Her own five children were raised in New Hampshire and South Carolina but one by one made their way to Boulder, so she followed suit in 2013 when the first grandchild arrived. She has a BS in Nutrition/Food Service and extensive experience in small business ownership and restaurant/hospitality administration, leading up to accounting services. Nancy is still a health and nature nut and is passionate about family, food, fitness and the environment.

Mary Payne
Administrative Assistant, Front Desk
Email Mary
303-449-3060 ext. 0 or 100
Direct 303-951-6042
Fax (303)951-6043

Originally from Kent, England, Mary has worked for Mark for over 20 years. She enjoys interacting with our many clients and making them feel comfortable when they come in to see the "Tax Man." Being a long-term employee, she has seen many changes and adapts well to the new staff and technology. Mary enjoys traveling, cooking, shopping with her two shopaholic daughters, spending time with her two grandchildren, reading, dabbling in a little poetry writing, and keeping fit at the local Rec Center.

Katie Clements
Administrative Assistant, Legal and Billing
Email Katie
303-449-3060 ext. 133
Direct 303-951-6020
Fax 303-951-6021

Katie began working at the firm in 2013. She helps set up entities and maintain business compliance, prepares and files various non-tax forms, and assists with client billing and administrative tasks. She graduated from the University of Colorado in 2012, and lives in Littleton with her husband. In her free time, she likes to hike and camp, bake, read, and play with her dog.


Angel Barajas
Administrative and Processing Assistant
Email Angel
303-449-3060 ext. 124
Direct 303-951-6026
Fax 303-951-6027

Angel has 22 years of experience in office administration, including accounting, finance, underwriting, commercial insurance and tax. She joined the firm in 2009 and is a native of Boulder County. Angel enjoys spending time with her husband of 25 years, their three grown children, and especially their three grandchildren. She also loves being outdoors, camping, shopping and reading.

Crystal Musso
Administrative and Processing Assistant

Email Crystal
303-449-3060 ext. 136
Direct 303-951-6062
Fax 303-951-6063

Originally from Farmington, NM, Crystal first joined the firm in 2010. In search of warmer weather and to be closer to her sister, she moved to Arizona four years later. As it turned out, Arizona proved to be a little too warm, so she decided to move back to Colorado. It just so happened that the firm had an opening and she was welcomed back to start the year in 2016. Crystal has 10 years of retail management experience and 15 years of administrative/accounting support. She has four sons and five grandchildren, and enjoys running outdoors, going to the movies, and shopping. And she will never complain about Colorado cold winters again!

Justin Haan
Client Administration Coordinator
Email Justin
303-449-3060 ext. 134
Direct 303-951-6044
Fax 303-951-6045

Justin began working at the firm in 2012 after having spent years at a local call center. He maintains the file storage and retention (hard copy and electronic), copy machines, mailing, office supplies and equipment, all the while making sure the tax managers have everything they need. In his free time, he enjoys playing with his dog, playing video games, motorcycle rides and recreational target shooting.

Nataliya Cochrane
Administrative Assistant, Seasonal
Email Nataliya

Nataliya helps out with document management and storage during the firm's busy periods. She is a native of Russia and has a bachelor's degree in Linguistics from Ural State University. She also lived in London for six years before moving to Colorado in 2010. In her free time in Boulder, she enjoys yoga, hiking with her dogs, and studying languages.