About Us
Our People
David S. Kawasaki, CPA, Partner Joined: 1986
At Alten Sakai: Dave provides individual and business income tax services for clients. He also consults on retirement plans, real estate activities, accounting and network administration. His favorite days are when he can provide “Ah ha!” moments for those who are facing difficult tax or accounting challenges.
Memberships: American Institute of Certified Public Accountants (AICPA), Oregon Society of Certified Public Accountants (OSCPA)
Degrees/Certifications: B.S. in Accounting, University of Oregon
Tylor J. Leinweber, CPA, Partner Joined: 2006
At Alten Sakai: Tylor works with individuals and provides business accounting and income tax services for closely held businesses and their owners, primarily in small service operations. As a former QuickBooks ProAdvisor, he can also assist on a wide variety of QuickBooks issues. Tylor enjoys working in the firm's relaxed, collegial atmosphere where he has the opportunity to offer tax compliance and planning services to individuals, and help small and family-owned businesses thrive.
Memberships: American Institute of Certified Public Accountants (AICPA), Oregon Society of Certified Public Accountants (OSCPA)
Degrees/Certifications: B.A. in Business Administration / Accounting, Oregon State University
Eileen Nguyen, CPA, Partner Joined: 2006
At Alten Sakai: With over 15 years of experience in public accounting, Eileen focuses her practice on individuals and closely held businesses. While specializing in accounting services, compiled financial statements, and tax compliance, she also enjoys taking a proactive approach to her clients’ tax issues, providing planning and guidance that will benefit them now and in the future.
Memberships: American Institute of Certified Public Accountants (AICPA), Oregon Society of Certified Public Accountants (OSCPA)
Degrees/Certifications: B.B.A. in Accounting and B.S. in Biochemistry, University of Portland
Matthew D. Pearson, CPA, Partner Joined: 1992
At Alten Sakai: Matt provides individual and business accounting and income tax services, with a focus on professional service providers, wholesalers and more. He strives to provide excellent tax consulting services and, more importantly, assisting clients with all the big or small financial decisions they face.
Memberships: American Institute of Certified Public Accountants (AICPA), Oregon Society of Certified Public Accountants (OSCPA), church financial council
Degrees/Certifications: B.S. in Business Administration, University of Portland
Karilinn S. Reynolds, CPA, Managing Partner Joined: 1988
At Alten Sakai: Kari is our go-to partner for estate (Form 706) and trust (Form 1041) tax return preparation, helping clients complete their loved ones' final tax filings. She enjoys assisting families during their most challenging times, as part of a firm she feels is her own extended family.
Memberships: American Institute of Certified Public Accountants (AICPA), Oregon Society of Certified Public Accountants (OSCPA)
Degrees/Certifications: B.S. in Business Administration, Oregon State University
Lisa A. Tsuei, CPA, Partner Joined: 2015
At Alten Sakai: With over 25 years of experience in tax, Lisa advises individuals, closely held businesses, and trusts on a broad range of compliance and planning matters. Her special interest areas include gift taxation and foreign income and reporting. She enjoys working closely with clients to bring clarity to complex tax issues.
Memberships: American Institute of Certified Public Accountants (AICPA), Oregon Society of Certified Public Accountants (OSCPA)
Degrees/Certifications: B.S. in Accounting
Karen J. Amato, CPA, Sr. Client Manager Joined: 1993
At Alten Sakai: Karen provides individual and business income tax services for clients, and consults on accounting and QuickBooks software related issues. She enjoys building lasting relationships with clients while helping them to resolve their most pressing challenges and achieve their long-term goals.
Memberships: American Institute of Certified Public Accountants (AICPA), Oregon Society of Certified Public Accountants (OSCPA)
Degrees/Certifications: B.S. in Accounting, University of Oregon
Tul Dim C. Annand, CPA, Manager Joined: 2012
At Alten Sakai: Tul Dim provides income tax services for closely held businesses and individuals. She enjoys the variety of projects in her busy work day.
Memberships: American Institute of Certified Public Accountants (AICPA), Oregon Society of Certified Public Accountants (OSCPA), Women in Insurance and Financial Services (WIFS)
Degrees/Certifications: B.S. in Finance and Post-baccalaureate in Accounting, Portland State University
Matthew F. Hecker, CPA, Supervisor Joined: 2017
At Alten Sakai: Matthew provides individual and business accounting and income tax services to our clients. He enjoys helping our clients navigate the everchanging tax and accounting issues and training opportunities available at Alten Sakai.
Memberships: American Institute of Certified Public Accountants (AICPA), Oregon Society of Certified Public Accountants (OSCPA)
Degrees/Certifications: B.A. in Asian Studies, University of Hawai'i at Manoa; Post-baccalaureate in Accounting, Portland State University
Staci K. Larson, CPA, Supervisor Joined: 2023
At Alten Sakai: Staci provides individual income tax services to our clients.
Memberships: American Institute of Certified Public Accountants (AICPA) and Oregon Society of Certified Public Accountants (OSCPA)
Degrees/Certifications:
Ellen McCowan, CPA, Supervisor Joined: 2009
At Alten Sakai: Ellen provides individual and fiduciary income tax services to our clients.
Memberships: American Institute of Certified Public Accountants (AICPA) and Oregon Society of Certified Public Accountants (OSCPA)
Degrees/Certifications: Post-baccalaureate in Accounting, Portland State University
Rachelle L. Peterson, Office Manager/Tax Preparer Joined: 1991
At Alten Sakai: As our office manager, Rachelle's touch is found in nearly all aspects of Alten Sakai's operations, including the firm's technology infrastructure, client retirement plan reporting system, and overall office environment. Rachelle also is training to be a tax preparer. She enjoys the ongoing opportunities to learn, grow and fulfill a variety of essential needs in our ever-active firm.
Jonathan P. Randolph, CPA, Manager Joined: 2015
At Alten Sakai: Jonathan provides accounting and tax services for individuals and businesses, with a particular interest in multi-state tax issues and business liquidations. He enjoys helping our clients by tackling the complex tax and accounting issues that require professional expertise. Jonathan thrives on the fast-paced environment of public accounting and the opportunity to work with clients in a wide variety of industries.
Memberships: American Institute of Certified Public Accountants (AICPA), Oregon Society of Certified Public Accountants (OSCPA)
Degrees/Certifications: B.S. in Accounting, Portland State University
Katie Barrows
Administrative Assistant
Joined: 2023
Brianna Dyer
Staff Accountant
Joined: 2023
Ryle A. Hurley
Staff Accountant
Joined: 2025
Nancy A. LaBauve
Receptionist
Joined: 2006
Andrew Meyer
Staff Accountant
Joined: 2023
My Nguyen, CPA
Staff Accountant
Joined: 2026
Caryn Rutherford, LTP
Tax Preparer/Payroll
Joined: 2000
Carlie Thompson, CPA
Staff Accountant
Joined: 2024
Dylan Tran
Staff Accountant
Joined: 2026
Thi Vo
Staff Accountant
Joined: 2023
Holley M. Zeigler, CPA
Tax Preparer
Joined: 2017
Sharon Bishop, Tax Preparer
Contact Sharon Bishop
Yana Sukhoterina, Tax Preparer
Contact Yana Sukhoterina
Cathy Bail
Contact Cathy Bail
Evan Tsuei
Contact Evan Tsuei
Jennifer Nekl
Contact Jennifer Nekl
Thomas G. Bode, CPA, Partner Joined: 1979 Retired: 2021
E. Barry O'Connor, CPA, Partner Joined: 1979 Retired: 2024
Nelson E. Rutherford, CPA/PFS, CFP, Partner Joined: 1970 Retired: 2017
