Meet Williams & Schiller, PC

Who we are

At Williams & Schiller, PC, we are focused on building relationships that endure with personalized, attentive service. With offices in Sandpoint, Idaho and Fargo, North Dakota, we work with individuals and small businesses based in both our hometowns – and around the world. Whether you’re local or afar, get in touch!

Go to Our Contact Page »
Our CPA Professionals

Our staff of knowledgeable professionals can assist with your tax, accounting and financial planning over the long term. Our goals are to provide our clients with long-term financial and tax planning advice. We also provide our clients with up-to-date guidance regarding U.S. reporting and tax changes. 

Contact Us to Get Started »
Sandpoint office • Managing Partner


Born and raised in Libby, Montana, Brad went on to earn his BS in Geology, and further focused on graduate work in accounting and finance at the University of Montana. He achieved the CPA designation in 1987, and began his career with the ‘Big Four’ accounting firms – KPMG in Billings, and Coopers and Lybrand in Spokane, Washington.
Brad honed his expertise to provide tax planning, preparation and accounting services to businesses and their owners, as well as to individuals. He relocated to Sandpoint, Idaho in 1991 and opened his own firm. In 1995, he merged his private practice with fellow local CPA Paula (Freeman Parsons) Hall, creating Williams & Parsons, PA, CPAs. In addition to being a CPA, Brad holds the designation of Personal Financial Planning Specialist. Brad is also an accredited Peer Reviewer, providing reviews to other CPA firms around the western US to help them maintain their firms’ system of quality control.

Skype: brad.j.williams
Let us do the work, call or email today!

Contact Brad
Fargo office • Managing Partner


Mark began his career in 2001 working for CPA and investment advisory firms in Minnesota. Mark was a
partner in our Sandpoint office before moving back to Minnesota in 2012, and subsequently to open our
Fargo office in 2019. Mark specializes in comprehensive wealth management including portfolio
construction, investment management, estate planning, insurance needs analysis, tax planning,
business consulting, and business valuations. In addition to being a CERTIFIED FINANCIAL PLANNER
(CFP®) professional, Mark is also a CPA and is Accredited in Business Valuation (ABV).

Mark received his B.A. in Accounting from Concordia College, Moorhead, MN. He also holds graduate
certificates in Estate Planning and Financial Analysis from the College for Financial Planning.
Mark enjoys all things outdoors and resides in Moorhead with his wife Kristi, and their two children.

Let us do the work, call or email today!

Contact Mark
Certified Public Accountant


Brett Sweezy was born and raised in the North East, hailing from New Hampshire and Vermont. He graduated the top of his class from New England College, earning a Bachelor Degree in Accounting with a Minor in Economics. Brett is a CPA and from 1992-1999, he owned and managed his own Sandpoint-based accounting firm (Brett Sweezy, CPA, PA), providing accounting and tax services to more than 300 clients.

Following the sale of his successful business, Brett transitioned his career to corporate finance. He has an extensive resume of serving as the CFO and/or President of several national and international companies, and can claim 25+ years of experience in all financial aspects of both public and private companies, as well as issues important for individuals.

Contact Brett
Certified Public Accountant


Jesse Raynor began his career in public accounting with a regional office that joined the “Top 10” U.S. firm CliftonLarsonAllen. He earned his Master of Accountancy Degree with an emphasis in Taxation.  Jesse specializes in tax planning, state and federal tax compliance, and small business consulting. He has 18 years of industry experience Home building and specialty trade construction, real estate development, sales, manufacturing, and service.

Jesse lived on the Pend Oreille River as a child, and moved back to Northern Idaho in 2017 after several years as the managing partner of a practice in Utah, where he personally worked with several hundred friends and clients. Jesse is enjoying time with family, friends, and the beautiful outdoors of Northern Idaho. He is excited to be home and looks forward to engaging with the community in the coming years.

Contact Jesse
Staff Accountant

Cheryl O’Boyle, CPA

Cheryl was born and raised in the Spokane area, and spent most weekends in her Grandpa’s hand-built cabin on Garfield Bay. She graduated from Cheney High School and received her BA in Business Accounting from Eastern Washington University. Cheryl achieved her CPA in Washington State in 2016, and joined the team at Williams & Parsons in 2018.

Now residing in Grandpa’s cabin on Garfield Bay with her husband and two children, she enjoys boating, skiing, long walks around the lake, reading and crafting. Cheryl also served as Treasurer for Job’s Daughters #44 in Spokane, and has been a member of the Order of Eastern Star – Victory Chapter for more than 3 years.

Contact Cheryl

JACKIE WINDJU, Bookkeeping, Payroll, Quickbooks Pro Advisor

Jackie Windju is the third generation of her family to make this lake-and-mountain town home. After graduating from Sandpoint High (go Bulldogs!), she earned her BA in French and Business from the University of Idaho, and continued on to get her Masters in International Management from the American Graduate School of International Management.

Jackie started her career as an accounting supervisor with Sullivan Payne in Seattle, Washington, then moved on to become a Risk Manager for the Seattle Times. She returned to Sandpoint in the early 1990s to start her family and to grow in her chosen field.

Jackie has worked for a local CPA firm since 1992, and has been with Williams & Parsons since 1998. She is a full service bookkeeper, payroll specialist and a QuickBooks Pro Advisor. She has taught QuickBooks classes through North Idaho College’s Workforce Development Center, and is always available to answer QuickBooks questions for her clients.

When she is not working, she spends time with her family and friends and enjoys hiking, skiing, riding her cruiser-style bike, and traveling the world.

Contact Jackie
Call, email or stop by today.