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The Firm

Since 1978 our vision has been a constant.

As one of Michigan’s most respected firms, we are proud of our reputation for resolving complex legal matters with a creative and pragmatic approach. Similarly, we are proud of our reputation for vigorously litigating the most complex cases when negotiated resolution is not possible or desired.

Our firm employs attorneys with the highest academic credentials. We have the quality of lawyers that clients expect to see at the largest firms in Michigan and nationally. Consequently, we are called on by our clients to handle cases that would typically be serviced by large local and national firms. Because of our flexibility, creativity, and entrepreneurial attitude, we can perform these services in a more cost-efficient manner than the big firms. Thus, we are a perfect fit for clients looking for a midsize alternative to large firms in terms of cost and personal service.

The firm was founded in 1978 by Michigan State Senator Daniel Cooper, who devoted many years to the State’s taxpayers and his clients. Mr. Cooper grew the firm until his retirement, but his contributions are not forgotten. His dedication to a sophisticated law practice and the public sector form the foundation for ZAC’s current attorneys. In 2002, Mark Zausmer, who began his career as a clerk with the firm in 1979, took over as Managing Shareholder. Under Mark’s leadership, the firm has grown from 10 to over 60 attorneys.

Shareholder Gary K. August joined the firm in 1996 after working at Honigman, Miller, Schwartz and Cohn. A graduate of Northwestern Pritzker School of Law where he was an Associate Editor for the Northwestern University Law Review, Gary has built a sophisticated commercial litigation practice providing legal advice to municipalities, public authorities, and some of the largest corporations in the world, while being widely recognized as one of the top litigators in Michigan.

Shareholder Michael L. Caldwell, a graduate of University of Michigan Law School, specializes his practice on environmental law, and is one of the most respected and knowledgeable attorneys in Michigan on all aspects of environmental regulation and litigation.

Our clients confidently rely on our guidance because of our expertise and personal service. This confidence is evident from our long-standing client relationships. An AV (highest) rated law firm by the Martindale-Hubbell® rating service, we counsel organizations large and small, publicly and privately-held companies, major national corporations, entrepreneurs, municipalities, non-profit organizations, and individuals.

Our approach begins with our attorneys who are highly educated, knowledgeable and respected professionals. Through dedication, responsiveness, flexibility, cost consciousness, and creative thinking, we are able to meet and exceed our clients’ objectives. Our team of outstanding lawyers combines academic distinction with practical experience.

We apply our strategic approach to the most complex and high-profile matters, and to the most basic single issue lawsuits. As you get to know us, we believe you will value our dedication to excellence. And, our vision.

The ingredients of our success are straightforward:

  • Commitment to personal service
  • Superior human and technical resources
  • Expertise in the most complex areas of the law