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John R. Oostema Photo


John R. Oostema

Grand Rapids

Patti Braden



For over 35 years, John (Jack) Oostema's practice has focused primarily on representing lawyers in legal malpractice actions and on insurance coverage matters related to professional liability insurance. He has represented attorneys, law firms, and insurance carriers nationwide. He has served as National Coverage Counsel for a prominent professional liability carrier that writes coverage for lawyers in over 40 states. In addition to regularly representing many of the largest firms in the state, Jack has also represented the State Bar of Michigan in connection with litigation challenging the constitutionality of the Character & Fitness review process. Recently, as part of its 50-State Survey of Legal Malpractice Law, Jack was asked by the Professional Liability Committee of the Litigation Section of the American Bar Association to author the Michigan chapter on legal malpractice law. For a copy of that work, click here.

A native of Grand Rapids, Jack is married to Gloria. They have two sons, J. Adam and Andrew, and a daughter, Megan.

Previous Experience


  • American Bar Association
  • The Federal Bar Association
  • State Bar of Michigan (Member: Character & Fitness Committee, 1983-1989; Civil Procedure Committee, 1991 - 1999)
  • Grand Rapids Bar Association (Chairperson: Judicial Candidate Review Committee)
  • Michigan Defense Trial Counsel
  • Defense Research Institute
  • Professional Responsibility Counselors


  • Calvin College (B.A., 1973)  
  • Thomas M. Cooley Law School (J.D., summa cum laude, 1976)  


  • State Bar of Michigan, 1976
  • U.S. Court of Appeals for the Sixth Circuit, 1982
  • U.S. Supreme Court, 1984


  • AV Peer Review Rated, Martindale-Hubbell

  • Listed in GR Magazine Top Lawyer -- Legal Malpractice Law (2021)

  • Listed in Best Lawyers (2009-2021) -- Legal Malpractice Law - Defendants, Insurance Law, Litigation - Insurance

  • Listed as Best Lawyers, Lawyer of the Year (2020) - Litigation - Insurance

  • Listed in Leading Lawyers (2014) -- Commercial Litigation; Insurance, Insurance Coverage & Reinsurance Law; Professional Malpractice Defense: Legal/Technical/Financial

  • Listed as a "Michigan Super Lawyer" -- Insurance Coverage (2006-2018), Professional Liability Defense (2006-2020)

  • Listed as a "Local Litigation Star" in Benchmark Litigation (2010-2012, 2015, 2021) -- Insurance Litigation

  • Listed as "Lawyer of the Year" in Best Lawyers (2013) -- Legal Malpractice Law, Defendants

  • Listed as a highly recommended lawyer by Chambers and Partners -- Michigan: General Commercial Litigation (2012)

  • Selected as a "Leader in the Law" by Michigan Lawyers Weekly (2010)

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