Maner Costerisan Announces Promotion

The certified public accounting firm of Maner Costerisan is pleased to announce the promotion of Mark Lockwitz, CPA to Principal.

“We see a tremendous amount of leadership capabilities in Mark,” said Jeffrey Stevens, CPA, CITP, and President of Maner Costerisan. “I am confident he will do well in his new role with the firm.”

Lockwitz joined Maner Costerisan in 2001. As a principal in the firm’s audit department, he provides comprehensive audit and review services to a variety of niche areas, including nonprofit organizations, employee benefit plans and closely held businesses. In particular, Lockwitz assists trade associations, voluntary health and welfare organizations, religious organizations, healthcare organizations and colleges. Outside of his client responsibilities, he serves on the firm’s nonprofit committee and is the audit CPE director.

Lockwitz earned his Bachelor of Science in Accounting in 2001 from Central Michigan University. He also attended Lake Michigan College. Lockwitz is a member of the American Institute of Certified Public Accountants and the Michigan Association of Certified Public Accountants. In addition, he is the board treasurer of the Capital Area Humane Society. Lockwitz currently resides in Lansing with his wife, Kimberly, and their three children.

Maner Costerisan is a mid-market accounting and consulting firm located in Lansing, Michigan. As an Independent Member of the BDO Alliance USA, Maner Costerisan has full access to the national resources of one of the largest accounting and consulting firms in the world. For more information, visit


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