Who We Are

The best teams complement each other and result in accurate and seamless
delivery—that is how we have built our team.

Our Vision

Our vision is to provide expertise, support, and peace of mind for all those with fiduciary responsibility.

Our Mission

Fiduciary Accounting Services, LLC serves fiduciaries and their advisors by providing an accounting narrative that is understood by all, employing a consultative and proven methodology, and unparalleled expertise in fiduciary accounting. We are the premier provider of fiduciary accounting services in California; transforming transactions into actionable information.

Our Values

  • We uphold a commitment to excellence, reflected in the quality of our work, integrity, and knowledge that sets us apart.
  • We value the trust and respect that define our relationships.
  • We deliver expertise and support to ensure peace of mind for the people we serve.
  • We celebrate personal and collective growth in pursuit of meaningful work.

Our Team

FAS is made up of people who have the analytical skills, attention to detail, and desire to produce the highest quality work. We bring our whole team to each and every case. This provides our clients with the benefit of our expertise and the efficiency of a cohesive team working on their behalf.

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Heather Hamilton, Managing Principal

Heather Hamilton

Managing Principal

Kyle Haas, Senior Director at Fiduciary Accounting Services, LLC

Kyle Haas

Senior Director

Alaina DeWit, Director

Alaina DeWit


Julian DeSouza, Senior Associate - Fiduciary Accounting Services, LLC

Julian DeSouza

Senior Associate

Kay Gertmenian, Project Manager

Kay Gertmenian

Project Manager

Cheryl Gregson, Associate - Fiduciary Accounting Services, LLC

Cheryl Gregson


Celia Millis, Finance/Human Resource Manager - Fiduciary Accounting Services, LLC

Celia Millis

Finance/Human Resources Manager

John Pratuch, Senior Associate - Fiduciary Accounting Services, LLC

John Pratuch

Senior Associate

Hallie Pritchard, Data Entry Specialist - Fiduciary Accounting Services, LLC

Hallie Pritchard

Data Entry Specialist

Casey Spragens, Administrative Assistant - Fiduciary Accounting Services, LLC

Casey Spragens

Administrative Assistant

Cameron Wate, Associate - Fiduciary Accounting Services, LLC

Cameron Wate


Ryan West, Senior Associate - Fiduciary Accounting Services, LLC

Ryan West

Senior Associate