Our Team

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Jeffery Irwin

Jeff joined the firm in 2014 when his firm, McCartney & Company, P.C., merged
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Matthew C. Latham

Matthew joined Maner Costerisan as an intern in 2005 and advanced himself to a
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Christy Sommers

Christy joined the Maner Costerisan team in 2014. She primarily works on
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Brandy Terwilliger

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

Tax Tips for Retirees

When you turn 65, the way you file taxes changes. Consequently, it may not be a bad idea to brush up tax policy to see how you can benefit from tax issues brought on from Social
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What Our Clients Have to Say

Linda Mulder, Grand River A&W

In our relationship with Maner Costerisan, we have been extremely impressed with the quality of their work, the professionalism they display and timeliness of the information they
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