About Us

Our firm, which is located in Dallas, Oregon, was established in 1971, and has served the public continuously for forty-six years.  The partners, Chantel Williamson and Mike Aebi are readily available to answer your questions and are committed to providing you with a product that meets their high standards. 

Chantel Williamson, CPA

Chantel Williamson graduated from Corban University with her degree in accounting and finance.  She started working in public accounting in 1998 and received her CPA license in 2001.  She is a member of the American Institute of Certified Public Accountants and Oregon Society of Certified Public Accountants. As a Dallas High School graduate she enjoys getting to work and live in the community that she grew up in.  Chantel is married to Brian, who is a teacher for the Dallas school district, and they have three children.  Chantel stays involved in her community through serving on various boards.  She is currently serving on the Dallas Community Foundation Board, Dallas High School Booster Club and at Salt Creek Baptist Church. 

Mike Aebi, CPA

Mike graduated from Western Oregon State College and Portland State University with a degree in accounting. He has been working in public accounting since 2005 and received his CPA license in 2008. He is a member of the American Institute of Certified Public Accountants and the Oregon Society of Certified Public Accountants. Mike is married to Amy who works as a school counselor for the Salem-Keizer school district, and they have three children. Mike grew up in Dallas and has been involved with various organizations including Kids Inc. and the Dallas Downtown Association.

  Tonya Krzeminski, CPA

Tonya graduated from OSU in 1998 where she earned a Bachelor of Science in Business Administration, with an option in accounting.  She has over 20 years of experience working in the accounting field and has been a CPA since 2005. She and her family have lived in Dallas since 1996.

Rachel Pelzer, CPA

Rachel graduated from Corban University in 1999 where she earned her degree in accounting and finance.  She has been working in public accounting for over 20 years and has earned her CPA license.  Rachel and her husband have three young children.  Rachel works with us during tax seasons and is able to be home with her family the rest of the year.

 Shelli Miller, Staff Accountant

Shelli received her bachelor’s degree in business with a focus on accounting from Linfield College.  She started her career in public accounting in 2005 when she joined our firm.  Shelli and her husband have three children and live in Dallas.  Shelli is very involved in her community.  If you can’t find her at work she is probably helping out with the football or wrestling programs at the schools.

Maggie Carrasco, Staff Accountant

Maggie has just joined us after working for a large public accounting office in Salem.  She has 3+ years of experience working mainly with ag clients. As she grew up and live in Dallas currently, she is excited to start a career here also.  Maggie has embarked on the CPA exam process and is hoping to be a CPA by the end of 2018.  When not working, Maggie enjoys spending time with her husband, two young sons and two dogs.  They like trips to the Oregon coast, Detroit Lake, or spending time working on their newly purchased 5 acres.

Larry Loomis, Staff Accountant

After a career in the United States Navy Larry decided to get into the tax preparation field.  Larry has been preparing tax returns for over 20 years and most of those years have been for this firm.  He works for here during tax seasons.  When it isn’t tax season he stays busy working on his family farm.  For many years Larry and his wife, Lou, raised Emu’s on their farm. 

Williamson & Aebi LLP

960 SW Church St,

Dallas, OR

97338, USA

Direct Email


Tel 503-623-2381
Fax 503-623-3422

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