Our Team
Jerry W. Grebb
Certified Public Accountant, Partner
Marie graduated from Central Washington University with her bachelor degree in accounting. She started working at the firm in 1983 and is currently involved with Elmview Trust Fund, Kittitas County 4H Leaders Council, Kittitas County 4H Endowment Trust Fund and as a 4H Leader. Marie enjoys quilting, reading and doing puzzles, but, she can also be found helping her husband, Kirk, on the family farm during harvest. Marie has lived in the valley her entire life.
Jackie graduated from Central Washington University with her bachelor degree in Accounting. She started working at the firm in February 1991. Jackie enjoys teaching fitness classes, horseback riding, hiking and anything to do with being active and outdoors. She is married to Pat, has two grown children; a daughter in California and son in Arizona. She has lived in the valley since 1987.
Certified Public Accountant (Seasonal)
Melanie R. Rosecrans
Certified Public Accountant, Partner
Melanie began working at the firm in February of 2007. She graduated from Central Washington University with her bachelor degree in Accounting and a Master's of Professional Accountancy. When not working, she enjoys attending school and sporting events for her children, spending time with her family, camping and traveling. Melanie is married to Jeremy, has a son and daughter, and has been a life-long resident of Kittitas Valley.
Kelsey M. Roseberry
Certified Public Accountant
Kelsey graduated from Central Washington University with her bachelor degree in Accounting and a Master of Professional Accountancy. She started working at the firm in February of 2014. Kelsey is married to Damien and has two sons and a daughter. When not at the office, Kelsey keeps busy with her three young children and helps operate a local event planning business.
Madeline grew up in the lower Yakima Valley. She graduated from the University of Washington earning a Bachelor of Science degree in Economics and a Bachelor of Arts degree in Political Science with a certification in Political Economy. She and her husband moved to Central Washington in 2012 to start a small business. Madeline is married to Silvestre and has a daughter and two sons. She has worked for the firm since December of 2016.
Felicia M. Persson
Felicia graduated from Central Washington University with her bachelor degree in Accounting, beginning her work at the firm in 1992. She moved to Mexico in 2011 but recently relocated to Shelton, WA. Felicia returns periodically to Ellensburg, where she works the majority of her time during tax season. She and her husband, Kevin, spend their time traveling to Mexico, fishing and enjoying the semi-retired life. Prior to her relocation, she had lived in the valley since 1985.
Tina M. Wall
Staff Accountant
Tina graduated from Seattle University, Alber’s School of Business with her bachelor degree in Accounting. She started working for the firm in December of 2014. Tina grew up in upper Kittitas County, moved to Seattle after high school, and has since re-located back to Kittitas Valley. She enjoys spending time outdoors, photography, and sewing.
Amy Bayne
Office Manager/Billing Specialist
Amy has worked at the firm since October of 2004. Outside the office she enjoys fishing with her family, participating in various events with her kids and spending time at the family cabin. Amy is married to Andy, has four sons and a daughter and has been a life-long resident of Kittitas Valley.
Jerry graduated from Washington State University, with a bachelor degree in Accounting and Business Administration. He began working at the firm in May of 1972. His background also includes a long association with agriculture and agribusiness. He is currently a member of the Ellensburg Kiwanis Club, as well as being the Treasurer and Director of the Foundation at Kittitas Valley Healthcare. Outside of work, he enjoys the culinary arts, gardening, or reading a good book. Jerry has been a long-time resident of the Kittitas Valley and was married to his wife Linda until her passing in 2022.
Jacqueline M. O’Connor
Certified Public Accountant, Partner
Madeline DeMaintenon
Certified Public Accountant
Richard A. Wachsmith
Certified Public Accountant, Retired Partner
Marie L. Riegel
Certified Public Accountant, Partner
Richard graduated from Seattle Pacific University with his bachelor degree in Business with an emphasis in Accounting, beginning work at the firm in June of 1974. He is currently a member of Mercer Creek Church where he has been active on their stewardship team for many years, as well as being the Treasurer for Kittitas County Chaplaincy, and Kittitas County Timothy Hay Growers. When Richard isn't at the office, he enjoys spending time at the family cabin at Priest Lake, ID and being at every activity his grandchildren participate in. Richard has been a long-time resident of Kittitas Valley and was married to Erlene for 44 years until her passing in 2019.