Maner Costerisan Expands with 20 New Team Members

LANSING, Mich. – Maner Costerisan is proud to announce the addition of several talented professionals to its team. These new hires represent a wide range of expertise and highlight the firm’s commitment to fostering a high-performing team dedicated to providing exceptional service to clients.

“We are excited to welcome these new team members to Maner Costerisan,” said Trey Williams, CPA, president of the firm. “Their talent, enthusiasm, and expertise will enhance our firm and help us continue delivering outstanding service to our clients in the year ahead.”

Mary Angst, CPA, joins Maner Costerisan as an accounting manager, bringing extensive financial leadership experience. Most recently, she served as the financial director at an environmental consulting firm, following a role as the director of finance and administration at a civil engineering firm for nearly 12 years. Prior to that, she worked as a finance officer at a local communications firm for over 16 years. A resident of Laingsburg, Angst volunteers her time as a member of the Laingsburg School Board. She holds a master’s degree in accounting from Michigan State University, where she also taught Accounting 201 as an adjunct instructor. 

Scott Ebert, CPA, of Lansing, has rejoined the firm as an audit manager. With nearly 12 years of accounting and audit expertise, Ebert returns to Maner Costerisan after recently serving as a senior financial analyst at a Detroit-based manufacturer. Prior to his first stint at Maner, he worked for nearly four years as an accounting assistant at The Eli Broad Graduate School of Management. He holds both a bachelor’s and a master’s degree in accounting from Michigan State University.

The firm has also expanded its team by hiring six additional associates:

• Christopher Carpenter of Lansing – IT Support Specialist, Central Michigan University grad 
• Lindsey Darby of Fowlerville – Tax Associate, Bowling Green University grad 
• Melissa Franquist of Mount Pleasant – Accounting Manager, Central Michigan University grad 
• Sunny Lee of East Lansing – Audit Associate, Central Michigan University grad 
• Hunter White of Lansing – Tax Associate, Michigan State University grad 
• Ayanna Williamson of Lansing – Receptionist 

The firm is also pleased to announce the addition of several college interns who will gain hands-on experience in various departments:

• Marlene Bond – Tax Department, Lansing Community College, Northwood University 
• Mercedez Boyer – Accounting Department, Lansing Community College 
• Nicolle Diaz – Tax Department, Grand Valley State University 
• Antonia Drake – Tax Department, Grand Valley State University 
• Abdul Gabayre – Tax Department, Lansing Community College, Northwood University 
• Caroline Huffman – Tax Department, University of Michigan Flint 
• Austin Kepsel – Tax Administration, Michigan State University 
• Ethan Park – Accounting Department, Western Michigan University 
• Ayden Rutan – Audit Department, Grand Valley State University 
• Julia Saboya – Audit Department, Grand Valley State University 
• Erich Schroeder – Tax Department, Michigan State University 
• Aaron West – Audit Department, Concordia University 

About Maner Costerisan 

Maner Costerisan is a full-service public accounting and business consulting firm founded in 1906 and based in Lansing, Michigan. With nearly 120 years of experience and offices in Lansing and Grand Rapids, the firm provides a comprehensive range of services, including audit and assurance, tax planning and preparation, business consulting, technology solutions, and wealth management.

The firm is nationally recognized including being named a Best Firm to Work For, Best of the Best Firms, and a Top Firm to Watch, among other accolades. Maner Costerisan is dedicated to helping clients achieve their financial goals through innovative solutions, personalized service, and a commitment to excellence. The firm serves a diverse clientele across various industries, including manufacturing, nonprofit, government, health care, and education.