Mr. Diegel has a wide range of experience in the areas of mergers and acquisitions, corporate and commercial law, international transactions and joint ventures, general business law, contracts, taxation, financing, real estate law and probate and estate planning.  His clients have included publicly traded multinational companies, as well as small and middle market privately held companies.  He has served as counsel to sellers and buyers in mergers and acquisitions in the automotive, health care, financial services, insurance and information technology industries.  Mr. Diegel has also served as general counsel for a number of companies and has advised on all aspects of commercial operating issues.  He has also successfully litigated cases in Michigan state courts.  He is and has been AV peer rated in Martindale-Hubbell for more than 25 years.



  • Wayne State University College of Law, LL.M. in Taxation
  • University of Toledo College of Law, Juris Doctor
  • Michigan State University, B.A.

Bar Admissions:

  • Michigan
  • United States Tax Court