Audit & Assurance

Trust More.
Perform Better.

We Dig Deeper into the Numbers to Scrutinize Your Business and Your Opportunities.

As experts in audits and assurance, Maner Costerisan is proud of our ability to ensure controls are in place, financials are accurate, systems work properly and that everything is as efficient and effective as possible.

Our forward thinking, innovative approach focuses on the specific steps needed to reach your goals. We’ll help you meet complex compliance requirements that change all the time, and help you prepare for audits so you’re set up for success if and when they are needed.

Always focused on accuracy and addressing areas of opportunity, ultimately increasing your organization’s operational capabilities and efficiency.


Expertise with complex reporting requirements that helps you navigate today’s rapidly-changing business environment.

Bringing deep technical and compliance knowledge to make sure every job is set up for success.

Guiding other CPA firms with oversight based on the most current public accounting practices.

Maner Team Expert

Jeff Staley, CPA, Principal, Director, Audit Department Head

Jeff serves as a principal and is the director of the firm’s Audit department, he specializes in providing comprehensive audit services to governmental entities, including townships and school districts.  Jeff also regularly performs audits and reviews of several for-profit and nonprofit organizations, as well as audits of trade associations. He is a single audit expert and has obtained the AICPA Advanced Single Audit certification.  He is a member of Maner Costerisan’s Education Niche Committee and Director of Quality Control.

Jeff was inspired to pursue an accounting career due to his strength in working with numbers.  Today he attributes his success to the hard work he has demonstrated over the years.  Jeff’s willingness to put in the necessary time and effort to complete projects in an efficient and accurate manner is a testament to his dedication for his clients’ success.

Jeff currently resides in Lansing, Michigan.

The best piece of advice someone has given me professionally is don't be afraid to take a chance. You may fail, but courage isn't defined as how many times you fall, but the willingness to pick yourself back up and try again.

Years of Experience



American Institute of Certified Public Accountants (AICPA)

Michigan Association of Certified Public Accountants (MICPA)

Central Michigan School Business Officials (CMSBO)

Michigan School Business Officials (MSBO)


Certified Public Accountant (CPA)

AICPA Single Audit – Advanced Certificate

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