Mark L. Lockwitz, CPA
Principal, Audit

“I always strive to provide the highest level of value to my clients.”

Mark joined Maner Costerisan in 2001 shortly after graduating from Central Michigan University. He currently serves as a principal in the firm’s audit department. In his day-to-day role, Mark provides comprehensive audit and review services to clients in a variety of niche areas, including nonprofit organizations, employee benefit plans and closely held businesses. In particular, he assists trade associations, voluntary health and welfare organizations, religious organizations, healthcare organizations and colleges. Outside of his client responsibilities, Mark serves on the firm’s nonprofit committee and is the audit CPE director.

Mark started at the firm as a staff associate and has worked his way up the corporate ladder. A loyal and passionate employee, he consistently works to improve the community in both his professional and personal life. Mark has spoken at the MICPA’s nonprofit conference. He credits his interest to pursue accounting because of his curiosity to dive into the heart of a business.

Mark grew up in Stevensville, Michigan and met his wife, Kimberly, while in college.  They have three children–Lois, Lillian and Victor. When away from his desk, Mark enjoys creating new dishes in the kitchen, playing with his children and working in his yard.

  • Certified Public Accountant (CPA) – Michigan
  • American Institute of Certified Public Accountants (AICPA)
  • Michigan Association of Certified Public Accountants (MICPA)
  • Capital Area Humane Society
    • Board Member
  • Central Michigan University
  • Lake Michigan College