Our Team

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Timothy H. Adams

Tim joined Maner Costerisan in 1999 after the firm merged with his former
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Brandy Terwilliger

As a senior manager in the tax department, Brandy focuses on tax planning and
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Jeffery Irwin

Jeff joined the firm in 2014 when his firm, McCartney & Company, P.C., merged
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Jeffrey L. Staley

Jeff joined Maner Costerisan in 2000 following his college graduation.  As a
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Careers at Maner

Before you commit to a future employer, consider what is important to you: Is it about the name recognition of your company? Being one of the many faces in a stadium full of faces? Your career is about growing as a professional and continuing to enjoy your personal freedoms.
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Timely Opportunities Blog

Make sure you have proper substantiation for your 2014 donations

If you don’t meet IRS substantiation requirements, your charitable deductions could be denied. To comply, generally you must obtain a contemporaneous written acknowledgment from the
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What Our Clients Have to Say

Robin Reynolds, Ingham Health

The biggest benefit of working with Maner Costerisan for over 16 years now is that they are a true full service accounting firm.   I am highly impressed with their level of
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