Our Team


School Finance Manager

DEPARTMENT: Accounting

Lyndsey Fleser, School Finance Manager

Lyndsey joined Maner Costerisan in 2021 as a school finance manager in the Accounting and Outsourced Solutions department. She provides expert training and support to Maner’s school and government clients and serves in an interim capacity to clients looking to fill critical roles within their organization’s financial departments.

With over 20 years of experience, Lyndsey has expertise in manufacturing, where she served as a controller for 12 years, and in school and government, where she spent 9 years as a finance director. Passionate about helping people and excelling in math, Lyndsey is confident about her career path. In 2018, she was awarded the Association of School Business Officials (ASBO) Emerging Leader and in 2019 was awarded ASBO Emerging Leader Mentor.

A University of Nebraska – Lincoln graduate, Lyndsey has a Business Administration degree with an accounting emphasis. She lives in Grand Haven, Michigan, with her husband and three children. In her free time, she enjoys traveling and reading.

My purpose is finding ways to contribute meaningfully while conducting myself at a high level of integrity and demonstrating the virtues I value.

Years of Experience



Michigan School Business Officials (MSBO)


Michigan School Business Officials Certified Financial Officer (MSBO CFO)

Michigan School Business Officials Business Manager Academy Graduate