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Maner Costerisan Grows Talent and Services with New Hires

Monday, February 12, 2018  
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Maner Costerisan, a full-service public accounting and business advisory firm, is excited to announce the addition of three employees that grow the organization’s talent pool and client-based capabilities: Sarah Casby, recruiting and HR administrator; Jeff Allen, CPA, audit department senior manager; and Cole Williams, associate in the tax department.

“Sarah’s expertise in human resources and Cole’s addition to the tax department are valuable assets to our firm and clients. We’re also delighted to welcome back Jeff, who began his career with us over a decade ago,” said Jeffrey Stevens, president of Maner Costerisan. “We value relationships as the drivers of clients’ successes — that begins and ends with our own people.”

Allen, 33, was with Maner Costerisan for nine years before leaving to serve as a corporate controller for Centurion Medical Products. Now, he returns to assist accounting and outsourced services after the affordable housing's audit season concludes. A summa cum laude graduate of Western Michigan University, Allen enjoys time with his wife and two sons, and he hopes to one day step foot on all seven continents.

Previously at the Rush University Medical Center in Chicago, Casby, 33, has built a wealth of administrative experience since 2006. She received her MBA from Madonna University and her bachelor’s degree from Central Michigan University. Casby loves spending time in the summer to explore every bit of Michigan that she can, as well as baking.

Williams, 25, begins his career in Maner Costerisan’s tax department as an associate. Formerly with Fifth Third Bank, he graduated from Grand Valley State University in 2017 with a master’s degree in accounting and completed his undergraduate studies at Michigan State University. When out of the office, Williams is found either snowboarding or hiking.

For additional information, visit Maner Costerisan at or call 517-323-7500 to speak to our team!

About Maner Costerisan 

Maner Costerisan is a full-service public accounting and business advisory firm dedicated to providing quality and reliable services targeted to specific client needs. When clients choose us, they choose a total solution – we pride ourselves on bringing more to the table than the traditional accounting services. Maner Costerisan is an independent member of the BDO Alliance USA, a nationwide association of independently owned local and regional accounting, consulting and service firms with similar client service goals. For more information, visit

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