Rob is a partner and the tax director of Peterson Sullivan LLP. He utilizes more than 34 years of public accounting experience to provide tax and business consulting services to a variety of industries, specializing in: real estate development and operations, law firms, manufacturing, heavy equipment sales, and restaurants. Rob dedicates himself and his team to provide the highest degree of excellence to his clients.

Having an expansive range of expertise in entity selection and formation, Rob has assisted partnerships, limited liability companies, corporations, estates, and trusts in the application of diverse tax and reporting obligations. Rob recognizes great value in building personal relationships with his clients and developing a deep understanding of their needs. He holds open communication with a range of clients throughout North America, Europe, and Asia to efficiently meet their goals.

Rob values building personal relationships with his clients and developing a deep understanding of their needs through research and analysis, to effectively serve and advise them over time.

Outside of work, Rob Keasal is an avid cyclist and participates in various organized rides. He enjoys camping in his RV as well as spending time with his wife, daughters and granddaughters. In the realm of tax, as well as outside of work, Rob values learning and enjoys solving the variety of challenges that arise each day

Professional/Civic Organizations

  • American Institute of Certified Public Accountants
  • Washington Society of Certified Public Accountants
  • Seattle Estate Planning Council
  • Mount Baker Council BSA
  • Fred Hutchinson Cancer Research Center Planned Giving Advisory Committee
  • Gonzaga Accounting Advisory Board, Former Chair


  • Masters of Taxation, Golden Gate University
  • Bachelor of Arts, Accounting, Gonzaga University


Service Areas

Our Firm
Peterson Sullivan is a Seattle-based CPA and advisory firm known for the expertise we bring to publicly traded and closely held middle-market companies, nonprofit organizations, and high-net-worth individuals throughout the Pacific Northwest and around the world.
PS Wealth Advisors, LLC is a registered investment adviser in the state of Washington. The adviser may not transact business in states where it is not appropriately registered or exempt from registration. Individualized responses to persons that involve either the effecting of transactions in securities or the rendering of personalized investment advice for compensation will not be made without registration or exemption.