Go for Help.
Your Cause is Our Cause.
Meeting your needs has been our expertise for a long time. We have a century of nonprofit experience with over 400 associations, charities and private and community foundations across the region. We know that finances, like nonprofit accounting, are central to your work, and we have seasoned experts committed to helping you help others.
Maner Costerisan values relationships just as much as continuing to master their area of expertise. Customers can rely on employees contributing to their mission by attending events, subscribing to newsletters, following social media, and asking questions to learn more about new initiatives. It’s what sets the MC Team apart.
– Tammy Hannah, University Rehabilitation Alliance, Inc.
My experiences with Maner over the years, have always been excellent… they provide great audit services, as well as support for accounting items and Great Plains IT support; all with sound knowledge and a quick turn around.
– Arnie Keyes, Lansing Regional Chamber of Commerce
We are a relatively complex organization and Maner understands us and gives counsel at the strategic level so we can make decisions that help us be good stewards of our members’ investment.
– Rob Fowler, Michigan Celebrates Small Business
Maner responds to my concerns or questions quickly and I always feel they do their due diligence before giving me an answer.
– Michele Brand, Michigan Protection & Advocacy Service Inc.
Experts with a Mission.
We have made a commitment to the nonprofit community, serving nonprofits of all shapes, sizes and missions. We understand your challenges around nonprofit funding, nonprofit budgeting, membership, technology and resources. And we have a dedicated team with the industry expertise and strong partnerships to ensure your success and that of those who depend on you.
Community Networking & Resources
Single Partner with Tremendous Resources
Industry Expertise & Connections
Maner Team Expert
Sarah Jennings, CPA, CFE, CAE, Principal, Director, Community Engagement Director
Sarah is a principal in Maner Costerisan’s Accounting and Outsourced Solutions department. She leads the firm’s fraud and forensics practice and its nonprofit team. Sarah oversees outsourced solutions engagements providing guidance and advisory services to client leadership and teams on financial analysis, projections, and workflow. She has a particular specialization in performing fraud risk assessments and internal control process improvements for organizations across various industries. Sarah maintains a strong desire to help her clients augment their internal controls and fraud prevention systems while minimizing their costs in the process. Sarah also performs examinations for various organizations to determine and document the extent of loss due to fraud.
Sarah is leading our firm’s initiatives in innovation and community engagement involving many internal team members as well as community leaders and stakeholders. This increased focus is an exciting representation of Maner Costerisan’s concentration on its’ corporate social responsibility.
Beyond her client responsibilities at Maner Costerisan, Sarah regularly shares her expertise with colleagues and peers by speaking on industry-related topics including fraud (risk areas and prevention), financial oversight, board governance and ethics.
Sarah volunteers her time with various charitable organizations primarily focused on leadership and entrepreneurism.
Sarah resides in Laingsburg, Michigan with her husband, Russ, and their son, Kannon. In her free time, she enjoys gardening, cooking, and playing golf.
I am dedicated not only to the task my clients have engaged me with, but also to helping their organizations succeed and thrive overall.
Years of Experience
American Institute of Certified Public Accountants (AICPA)
Michigan Association of Certified Public Accountants (MICPA)
Association of Certified Fraud Examiners
Lansing Chapter of the Association of Certified Fraud Examiners
American Society of Association Executives
Michigan Society of Association Executives
McLaren Greater Lansing Healthcare Foundation, Board of Trustees Executive Committee
ATHENA International, Board of Trustees Treasurer
ATHENA Women’s Interest Network
Certified Public Accountant (CPA)
Certified Fraud Examiner (CFE)
Certified Association Executive (CAE)
Nonprofit Clients Served Across Michigan
Dedicated Nonprofit Industry Experts
Years of Experience Serving the Nonprofit Industry
Net Promoter Score
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