Meet the Team

CPAs

Photo of Mickey McMillan

Mickey McMillan

CPA

Mickey McMillan was born in Lewistown, MT, but grew up in Joliet, MT. She graduated from Eastern Montana College in 1971 with a degree in Education. She went back to college at Eastern Montana College in 1980 and received her bachelor’s degree in Business Administration with an Accounting emphasis in 1983. After working one year in Billings, MT, Mickey joined our firm in 1984.… Read More

Phone: (406) 535-2352Fax: (406) 535-2354

Mickey McMillan was born in Lewistown, MT, but grew up in Joliet, MT. She graduated from Eastern Montana College in 1971 with a degree in Education. She went back to college at Eastern Montana College in 1980 and received her bachelor’s degree in Business Administration with an Accounting emphasis in 1983.

After working one year in Billings, MT, Mickey joined our firm in 1984. She passed the CPA exam in 1986 and became a partner in 1999.

Mickey currently lives with her husband of 39 years and travels to see her three children frequently. Mickey practices in all areas the services our firm offers.

Photo of Stacie Arntzen

Stacie Arntzen

CPA

Stacie Arntzen first joined our firm in June 2002. She grew up in Northeast Nebraska as part of the family Farm/Ranch operation. She helped her family convert their books into Quickbooks and started doing the bookkeeping for the operation while in high school and continued to help out while she attended college at the University of South Dakota.… Read More

Phone: (406) 535-2352Fax: (406) 535-2354

Stacie Arntzen first joined our firm in June 2002. She grew up in Northeast Nebraska as part of the family Farm/Ranch operation. She helped her family convert their books into Quickbooks and started doing the bookkeeping for the operation while in high school and continued to help out while she attended college at the University of South Dakota. She transferred to Montana State University in Bozeman and finished her degree in May 2002.

Stacie passed her CPA exam and became certified with the State of Montana in 2005. She became a partner in 2009.

She lives 25 miles north of Lewistown with her husband, Brad Arntzen, and their three daughters – Abbie, Ashlen, & Aleia – where they are part of the Arntzen Angus Ranch. Stacie works in all the many areas of services our firm offers, specializing in Agriculture.

Photo of Jodi Ruckman

Jodi Ruckman

CPA

Jodi Ruckman was born and raised in Lewistown and grew up on her family’s grain and cattle operation near Moore. She graduated from Moore High School in 2000. Jodi went on to college at Montana State University in Bozeman for 2 1/2 years then transferred to Montana State University-Billings and graduated with an Accounting Degree in December 2004.… Read More

Phone: (406) 535-2352Fax: (406) 535-2354

Jodi Ruckman was born and raised in Lewistown and grew up on her family’s grain and cattle operation near Moore. She graduated from Moore High School in 2000. Jodi went on to college at Montana State University in Bozeman for 2 1/2 years then transferred to Montana State University-Billings and graduated with an Accounting Degree in December 2004.

Jodi joined the firm in December 2004 and became a Certified Public Accountant with the State of Montana in the fall of 2006. She became partner in 2011.

Jodi is married to Shaun Ruckman and they have three children – Lani, Kalli, and Miles. She stays active and enjoys being involved with different organizations in the community. Jodi practices in all areas of services the firm has to offer, but concentrates on farm/ranch and business.

Support Staff

Photo of Polly Alexander

Polly Alexander

Payroll & Bookkeeping

Polly Alexander was born and raised in Shelton, Washington. She worked for a CPA firm in Olympia, Washington, for the past 22 years before relocating to Lewistown, Montana in August 2014 with her husband and daughter. She has been with the firm since November 2014. Polly provides payroll and bookkeeping services for the firm. Read More

Phone: (406) 535-2352Fax: (406) 535-2354

Polly Alexander was born and raised in Shelton, Washington. She worked for a CPA firm in Olympia, Washington, for the past 22 years before relocating to Lewistown, Montana in August 2014 with her husband and daughter. She has been with the firm since November 2014. Polly provides payroll and bookkeeping services for the firm.

Photo of Tami Donaldson

Tami Donaldson

CPA – Part Time Tax Prep

Tami Donaldson has prepared taxes part time for the firm since 2007.  She attended high school in Forsyth, MT, and college at MSU in Bozeman.  She graduated and passed the CPA exam in 1993.  Following graduation, she worked for an accounting firm in Bozeman before moving to Denton with her husband, Lloyd, so he could return to the family farm. … Read More

Phone: (406) 535-2352Fax: (406) 535-2354

Tami Donaldson has prepared taxes part time for the firm since 2007.  She attended high school in Forsyth, MT, and college at MSU in Bozeman.  She graduated and passed the CPA exam in 1993.  Following graduation, she worked for an accounting firm in Bozeman before moving to Denton with her husband, Lloyd, so he could return to the family farm.  Lloyd and Tami have four school-aged children.

Photo of Debbie Newton

Debbie Newton

Payroll & Bookkeeping

Debbie Newton was born in Reno, NV, and raised in Lewistown her whole life. She has been with the firm since 2007. Debbie provides payroll and bookkeeping services for the firm. Read More

Phone: (406) 535-2352Fax: (406) 2354

Debbie Newton was born in Reno, NV, and raised in Lewistown her whole life. She has been with the firm since 2007. Debbie provides payroll and bookkeeping services for the firm.

Photo of Cheryl Olson

Cheryl Olson

Administrative Assistant

Cheryl Olson was born and raised in North Dakota where she worked for a manufacturing firm for 24 years. After moving to Lewistown with her husband, she worked in the lumberyard industry. She joined HMAR as a receptionist in December 2018. Read More

Phone: (406) 535-2352Fax: (406) 535-2354

Cheryl Olson was born and raised in North Dakota where she worked for a manufacturing firm for 24 years. After moving to Lewistown with her husband, she worked in the lumberyard industry. She joined HMAR as a receptionist in December 2018.

Photo of Danny Oosting

Danny Oosting

Payroll & Bookkeeping

Danny Oosting was born and raised in Illinois. After meeting in the Midwest, he moved to Montana in 2009 to marry his wife – a Lewistown native.  Danny graduated from Helena College in 2018 with an associate’s in Accounting. Upon graduation, Danny and his wife returned to Lewistown to raise their toddler and infant twins.… Read More

Phone: (406) 535-2352Fax: (406) 535-2354

Danny Oosting was born and raised in Illinois. After meeting in the Midwest, he moved to Montana in 2009 to marry his wife – a Lewistown native.  Danny graduated from Helena College in 2018 with an associate’s in Accounting. Upon graduation, Danny and his wife returned to Lewistown to raise their toddler and infant twins. He has been with the firm since June 2018 and is working towards his bachelor’s in Accounting.

Photo of Laura Ridgeway

Laura Ridgeway

Payroll & Bookkeeping

Laura Ridgeway was born in Colorado but raised in Central Montana.  Laura lives outside of Hobson with her husband, son and daughter.  Her love for the outdoors keeps her feet firmly planted next to the mountains.  She has been with the firm since June of 2018.  Laura provides payroll and bookkeeping services for the firm. Read More

Phone: (406) 535-2352Fax: (406) 535-2354

Laura Ridgeway was born in Colorado but raised in Central Montana.  Laura lives outside of Hobson with her husband, son and daughter.  Her love for the outdoors keeps her feet firmly planted next to the mountains.  She has been with the firm since June of 2018.  Laura provides payroll and bookkeeping services for the firm.

Photo of Alyssa Yaeger

Alyssa Yaeger

Staff Accountant

Alyssa Yaeger was born in Billings and raised in Lewistown, Montana. She graduated from Fergus High School in 2013. In 2017, she graduated from Montana State University Billings and returned back home. She joined the firm in June 2017 and is working toward her CPA. Read More

Phone: (406) 535-2352Fax: (406) 535-2354

Alyssa Yaeger was born in Billings and raised in Lewistown, Montana. She graduated from Fergus High School in 2013. In 2017, she graduated from Montana State University Billings and returned back home. She joined the firm in June 2017 and is working toward her CPA.

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