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Our Team

Siegler & Ferry CPAs is a full-service CPA firm licensed in AZ. All our CPAs hold valid AZ CPA certificates.

Meet Our Team:

Valerie Ferry


CPA NAMEValerie Ferry has been a CPA since 1991 and is licensed in Arizona and California. She is also a Chartered Global Management Accountant (CGMA). She has a bachelors degree from the University of California, Los Angeles (UCLA).She has worked in both national and local certified public accounting firms and has a strong tax background. She enjoys working with clients to assist them in all of their accounting and tax needs. She is knowledgeable in many industries such as manufacturing, professional services, real estate, construction, distribution, retail and many others. Valerie moved to Arizona in 2005 and has enjoyed living in the Phoenix and Tucson areas, but thinks there is no better place to live than Northern Arizona.

Larry Siegler (Retired)


Larry Siegler has been a CPA since 1980.  He is a 1975 University of Arizona graduate with a Bachelor of Science degree in Business Administration.  He owned Siegler & Siegler, CPAs, a CPA firm in Prescott Valley for 21 years that provided tax and accounting services.  

Mary Siegler (Retired)


Mary Siegler has been a CPA since 1980.  She is a 1978 graduate of Northern Arizona University with a Bachelor of Science degree in Accounting.  She owned a CPA firm, Siegler & Siegler, CPAs, for 21 years that provided tax and accounting services.   

Renee Guitteau


Renee Guitteau works part-time during the busy season preparing tax returns.  She has spent over 30 years in retail and held various administrative positions.  She has a Bachelor of Science degree in Business Administration from Northern Arizona University.

Jennifer Larriba

Jennifer Larriba joined Siegler & Siegler, CPAs in September of 2004, and became a part of Siegler & Ferry CPAs, PLLC in November of 2016. She deals with accounting and sales tax for our clients. She is a graduate of Sonoma State University with a degree in Business Administration/Accounting.

Janine Mahoney

Janine Mahoney joined Siegler & Ferry CPAs in July 2019.  Janine processes payroll and accounting for our clients.  She received her AS in Accounting at Moorpark College in Moorpark, CA.  She has worked in the accounting field for 20 years primarily in the Construction industry.

Sheryl Price

Sheryl Price joined Siegler & Ferry, CPAs in 2019. She works part-time during tax season and assists the front desk with tax returns and answering the telephone. Sheryl worked in Colorado for more than 20 years for several small and large-sized oil and gas companies.


Marvin Eggert

Marv Eggert works part-time during the busy tax season preparing tax returns. He has fifteen years experience in tax preparation and has taught tax classes to train tax preparers. He recently relocated to Arizona from Minnesota. Marv and his wife Carol operated a B&B in Minnesota. Marv also spent 25 years as an engineer at Bell Labs in Illinois prior to moving to MN.


Pam Van Doren

Pam Van Doren joined Siegler & Siegler, CPAs in 2006, and became a part of Siegler & Ferry CPAs, PLLC in November of 2016. Pam processes payroll and also does accounting data entry for our clients. Pam lived most of her life in California.



Shirley A. Lehtinen Buddy is the firm's mascot. He enjoys greeting clients in the office.

We take care of your books for you, so you can get back to the job of running your business and generating profits.
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We offer payroll solutions that meet your business's needs and enable you to spend time doing what you do best--running your company.
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We offer a variety of services to help make sure that you are taking full advantage of Quickbooks' many features.
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We're here to help you resolve your tax problems and put an end to the misery that the IRS can put you through.
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We offer one-on-one guidance and a comprehensive financial plan that helps manage risk, improve performance, and ensure the growth and longevity of your wealth.
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© Siegler & Ferry CPAs 2021