Our team of professionals create a culture of success 



Mimi is a Certified Public Accountant (CPA) with more than 30 years' experience as a professional who guides individual clients to maximize their tax position to reduce liabilities and advises business clients to increase profitability by helping owners understand compliance and how financials impact their business. Renowned in the community as a trusted partner for her clients, Mimi's taxation advice is a welcome resource for sound business and financial decisions. 

As a Seattle native, Mimi focuses on helping individuals and business owners achieve their goals in the "Great Northwest" and beyond ... "Mimi loves going the extra mile for clients and works to innovate strategic solutions to address any accounting issue." Areas of practice include individual, fiduciary and business taxes, accounting, bookkeeping, IRS audits, small business development and financial forecasting. 

  • Central Washington University, B.S. degree in Accounting
  • CPA License (1984) Washington State
  • Member: Washington Society of Certified Public Accountants
  • Member: American Institute of Certified Public Accountants (AICPA)


SUE COHEN, Managing Director 

Sue has over 15 years of experience in business management at Mercer Island Accountants as a certified Quickbooks ProAdviser  who expertly manages client accounts providing montly bookkeeping, payroll services, quarterly reports, and budget forecasting. Sue's attention to detail accentuates her continuing education in accounting principles, honed over the years by excelling at courses in business management and accounting. She is also an IRS Registered Tax Return Preparer (PTIN) who is highly efficient in tax preparation and finanical statments. 

  • University of Washington, B.A. degree in Communications
  • Intuit Quickbooks Certified ProAdviser - 2020-2023








LAURIE AMARAL, Senior Accountant

Laurie has over 30 years of experience in individual and corporate tax preparation and planning in prominent executive positions as a Certified Public Accountant (CPA). Her expertise in preparing tax returns at Mercer Island Accountants is unparalled. Laurie's stellar career includes serving as the tax manager of a "Big 4" accounting firm in the U.S. to tax director at a prominent Northwest software company. Areas of expertise include taxation, K-1 reporting, and financials. Laurie applies her knowledge of the ever-changing U.S. tax codes and financial business strategies to her preparation of tax returns to provide our clients with the best return to achieve their goals. 

  • University of Iowa, BA degree in Accounting


TERRI CAMPBELL, Staff Accountant

Terri has over 25 years of business management experience in the Pacific Northwest. She has extensive expertise as accounting manager, bookkeeping manager, and HR manager for various organizations ranging from a sole proprietor to a high-growth startup to a corporation with $17M in annual revenues. Her accounting industry experience includes the technology sector, professional services, political campaigns, retail, education, and non-profit. Terri thrives working with clients to get results and is praised for being trustworthy, discreet, ethical, and professional.

  •  Lane Community College, Accounting


TAMMY OPHEIM, Senior Tax Accountant

Tammy has over 35 years of experience in the tax field with an emphasis on individual taxation. She recieved her Enrolled Agent cerfication with the Internal Revenue Service in 2003. Not only does Tammy focus on income tax compliance services for all catagories of tax returns, she spends a significant amount of time on IRS representation for clients with a focus on individual taxpayers. Tammy enjoys boating, traveling with her family, and spending time with friends and family at their vacation home in Lake Chelan. 

  • National Association of Enrolled Agents
  • Washington State Society of Enrolled Agents
  • Chamber of Commerce, Kent, WA


SERENA TARICA, Communications Specialist / Director of Storytelling

Serena is an experienced communications specialist, content editor, and outreach expert. She developed strategies at the University of Washington for the Provost's Laboratory Safety Initiative where her team recieved a "UW Distinguished Staff Award" nomination and a Campus Safety, Health, and Environmental Management Association (CSHEMA) "Innovation Award" for developing an innovative safety program. With over 20 years' exerpeince working as a writing strategist, Serena creates marketing communcations, website and digital content, and edits books and scripts for entertainment industry clients. As a screenwriter, her feature films have been in development in Hollywood and, as a producer, her films Reign and Anne Frank Meets God have won multiple film festival awards.

  • University of Washington, B.A. degree in Communications
  • University of Washington: "Distinguished Staff Award Nominee"; 2018 "CSHEMA Innovation Award"  
  • Member, Screen Actors Guild (SAG)


ALLIE PANGALLO, Logistics Operator / Tax Preparer 

Allie has a decade of experience thriving at Mercer Island Accountants in various roles. With knowledge in tax preparation and operations management, her understanding is vast in all things accounting.  Allie’s attention to detail is focused to assess every item and deduction when working on a client’s tax return. Her creative acumen is a bonus, and she possesses organizational and decorating skills that rival Martha Stewart! As a Mercer Island native, Allie is excited to help her community better understand their financial decisions and discover their unique tax profile.  

  • Seattle University, B.A. degree in Journalism 
  • Seattle University, B.A. degree in Film Studies 
  • Arizona State University, B.A. degree in Mass Communication and Media Studies 
  • Ashworth College, Tax Preparation with “Honors” 





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