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About Us

About Our Firm

At Dorn and Associates, Ltd., we focus our energy on providing accounting, financial advice, payroll, tax planning, and preparation services for individuals and small business.  All of our clients receive close, personal attention and we genuinely believe that our success is a result of your success.

The professionalism you will experience at Dorn and Associates, Ltd. is derived from years of advanced training, technical experience and investment of our time and resources in continuing education.  We believe our greatest asset is the time and care we invest in developing the personal relationships so critical to lasting business and financial success.

We listen to your goals and ideas and help you transform your vision to reality by communicating ideas and strategies in a clear and understandable language which helps turn complex material into useful information.  Our clients appreciate our proactive approach to their financial needs.

Our Mission

"Our mission at Dorn and Associates, Ltd. is to provide our clients with timely, accurate and useful financial information. We will accomplish this by striving to make ourselves available and receptive to our client's financial needs; providing our time, advice and opinions clearly, honestly and confidentially.  These services will be provided while maintaining the high ethical standards our profession demands."

Our Team

Mark J. Dorn - CPA 320-253-3009 St. John's University
Bachelor of Science in Accounting

Mark has been practicing public accounting since 1986. He is a graduate of St. John's University with a Bachelor of Science in Accounting. He grew up on a farm where he learned that hard work and honest sweat are the building blocks of a person's character and believes a man's greatest possession is his dignity. Mark brings these values to his practice as a public accountant and treats every one of his clients with respect & understanding while providing timely, confidential and professional service.

Professional Affiliations:

  • Minnesota Society of Certified Public Accountants
  • Minnesota Association of Public Accountants

Specific Industries:

  • Agriculture
  • Construction
  • Real Estate
  • Rental Properties


  • Tax Preparer, Business & Individual
  • Entity Selection & Setup
  • Retirement/Estate Planning
  • Business Valuations
  • QuickBooks Consulting

Community Involvement:

  • St. Stephen Parish Fall Festival Chairman
  • Knights of Columbus-Treasurer
  • SJU Wrestling Booster Club Treasurer
  • Eucharistic Minister, St Stephen Church


Jolene Sobiech –  CPA

Jolene has been a member of our staff since 2016.  She is a member of Minnesota Association of Public Accountants.

Her responsibilities include:     

  • Preparing financial compilations
  • Preparing Corporate and Individual tax returns
  • QuickBooks Consulting
  • Processing Live and After-the-Fact Payrolls
  • Processing Quarterly & Year-end payroll reports


She has extensive QuickBooks knowledge and experience.  



Randy Dorn – Staff Accountant

Randy has been preparing tax returns since 1993. 

His responsibilities include:

  • Individual tax preparation
  • Small business tax preparation including daycare & construction
  • Annual 1099 preparation and filing
  • Annual Property tax preparation and filing


Randy has been a wrestling coach for Tech High School for 13 years and is an active member of Bethlehem Lutheran Church.  



Deb Ahrens– Receptionist/Office Assistant

Deb has been a member of our staff since 2005.  She handles many areas of the company administration.

Her responsibilities include:

  • Meeting & greeting clients
  • Answering all phone calls
  • Scheduling all appointments
  • Processing all incoming and outgoing mail
  • Maintaining & ordering office supplies & equipment
  • Assisting with payroll
  • Preparing sales tax returns
  • Preparing property tax returns
    • Client Invoicing