Meet Our Team

Add Valorem is a full-service Certified Public Accounting firm licensed in Colorado. All our CPA's hold valid Colorado CPA Certificates.

Meet Our Team:


Wendy Campbell has spent her entire career doing what she loves most which is helping people and small businesses navigate a complex tax code and business climate. Since moving to Denver in 1981 from Cleveland, Ohio, Wendy dabbled in a few industries before accepting her true strengths in the accounting world.    

She got her Master’s Degree from the University of Colorado while building her accounting and tax firm one client at a time. Throughout the years, she has learned from her clients what it takes to start and grow a successful business and has been inspired by the courage and hard work it takes to create and achieve a successful enterprise. This inspiration is the source of her energy and drive to deliver the best service and support that she is capable of to all of her clients. In addition to her work, Wendy volunteers with the elderly population and mentors budding entrepreneurs   

She is the mother of twins, sophomores at CSU and Metro State, and the cutest malti poo ever, majoring in sleep and treats. She is honored to be a member of the 2019 class of the Leadership Program of the Rockies and last, but not least, has been learning how to square dance and is loving it! 



Donna is excited for this new firm and the opportunities and challenges that come with it!  Donna is a CPA and brings 25 years of accounting and taxation experience to the table.  Her true passion is working with individuals and small businesses where she can make a difference in our clients’ lives.  She loves helping them understand and leverage the complexities of accounting and taxation to achieve the best tax result possible.   

Prior to starting Add Valorem LLC, Donna was at Arrow Partnership where her expertise was working with small businesses and individuals.   Donna has held management and senior roles at Ernst & Young, Time Warner Cable and Apache Corporation.  Donna has a Master of Science Degree in Accounting and a Bachelor of Science degree in Accounting from the University of Colorado.  Go Buffs!    

Donna enjoys traveling (May – December), cooking (May – December) and spending time with friends and family.  Her personal goal this year is to try a new hobby or pastime that is outside of her comfort zone. 



Kelly White has been an accountant for over 30 years.  She has experience working in a multitude of industries, including oil and gas, construction, retail, restaurants and a variety of professional service firms.  Kelly assists clients with income, sales and payroll tax returns as well as with their bookkeeping needs and prepares compilations.  Prior to moving back Colorado 20 years ago, Kelly worked as a senior staff accountant for a local CPA firm in Houston, Texas.  In addition to her experience and the quality of her work, Kelly brings warmth, enthusiasm, energy and a positive attitude to our company and to every client she works with. 

In her spare time, Kelly enjoys skiing, hiking, fishing, spending time outdoors and creating adventures in everything she does.  Kelly strongly believes in appreciating every possible minute that she can.


Mary Lehner

This is Mary’s first foray into public accounting. She serves as a remote Controller for clients, helping them to manage their accounting records and assist with financial reporting needs. 

Mary’s journey started in New York City, where she worked for the Mayor of the City of New York and the Phillip Morris Companies. She moved to Colorado 20 years ago and fell in love with the mountains and her career at Great Divide Brewing Company in Denver, where she served as Controller. Mary especially enjoyed the challenges that come with working for a start up.

After 20 years, she decided that it was time to make a change. She bought a van and travelled the country for a year before settling back down in Idaho Springs. In addition to serving Add Valorem clients, Mary works as a SPED Assistant at Carlson Elementary in Idaho Springs.

When she’s not cycling or hiking, Mary spends her free time gardening. She has grown hops ornamentally for ten years. One of her COVID projects was to finally brew beer using those homegrown hops.


Featured Articles

Subscribe to our Emailed Newsletter