Founded in 1954

The Firm’s primary mission has been to make their clients more successful.

Leffel, Otis & Warwick, P.S. was founded in 1954 in the small farming community of Davenport, Washington. Leffel, Otis & Warwick, P.S. was one of the first to look outside the traditional role of accounting and taxation to other areas of business that could benefit from their expertise.  Serving as business advisors with true concerns for the success of the clients, is the foundation for the Firm’s very successful accounting practice.

Today, Leffel, Otis & Warwick, P.S. is an agricultural based accounting practice with four full-time offices, all located in small farming communities.  The clientele is primarily comprised of farmers, farmers’ cooperatives and other small businesses found in these small towns.


To be recognized as the most knowledgeable and trusted advisor to ag producers and ag businesses in the Pacific Northwest


Provide proactive advice to clients that contribute to their successes. Provide professional opportunities to staff while maintaining a balanced personal life. Achieve financial success and continuous growth.

Many of the Firm’s owners and employees grew up on family farms or in farm communities.

These people not only know the technical accounting and tax laws surrounding agriculture, but they also understand the other day-to-day aspects of the farming business.  Leffel, Otis & Warwick, P.S. employees have come back to these small farm communities to pursue their profession for one reason:  they truly enjoy their clients and their agricultural businesses.  It is this knowledge and interest that makes the Firm’s people great business advisors for the clients they serve.

At Leffel, Otis & Warwick, P.S., quality is the goal.  Satisfied clients value the advice they receive, and as a result most new business comes from word of mouth recommendations.  Leffel, Otis & Warwick, P.S. has set high standards in everything they do.  Mediocrity has no place in the Firm.



  • Accountable
  • Honest
  • Professional


  • Proactive
  • Forward Thinking
  • Planning Focused
  • Lifelong Learning


  • Timely
  • Results-Oriented
  • Successful Clients & Firm
Scroll to Top