Photo of Dennis M. Haffey

Dennis M. Haffey Member

Areas of Practice


Bar Admissions

  • Michigan, 1976

Court Admissions

  • U.S. Court of Appeals, 6th Circuit
  • U.S. District Court, Eastern District of Michigan
  • U.S. Supreme Court


University of Michigan, J.D., magna cum laude

University of Michigan, B.A., cum laude

Dennis M. Haffey has served as the Director of the Dykema Litigation Department, on the Executive Committee, as Managing Member in charge of the Bloomfield Hills office; as the Hiring Partner in charge firm-wide of hiring lawyers; and on the Professional Personnel Committee. He has been named annually for over a decade in both Chambers USA America's Leading Lawyers for Business and Best Lawyers in America, as well as in Michigan Super Lawyers, and Best Lawyers in Metro Detroit. Clients quoted in Chambers USA 2016 note he is “"very thorough, well prepared, super-accessible and responsive.”


Mr. Haffey's practice focuses on complex business litigation for both plaintiffs and defendants, at trial and appellate levels of state and federal courts, as well as arbitration and other forms of alternative dispute resolutions, on various subject matters, including:

  • Shareholder, partner and owner disputes, including minority oppression, fiduciary duty, securities fraud, and disputes arising from mergers and acquisitions
  • Dealer, distributor, agency, supply chain, and sales commission disputes
  • Lender liability, securities, fiduciary, and claims against banks and financial institutions
  • Fraud, tortious interference, conversion, and business torts
  • Claims against health care systems
  • Trade secrets, intellectual property, non-compete agreements
  • Franchise disputes (including automotive and wine)
  • Automotive (OEM, Tier 1 and Tier 2 supplier) disputes
  • Malpractice and related claims against accountants
  • Probate, fiduciary, and accounting litigation
  • Sports & entertainment
  • General commercial, contract and UCC
  • Insurance (coverage and bad faith) 

Significant Cases

  • Recovered $20 million after seven-week jury trial on a claim that a Fortune 500 company breached a contract to acquire the plaintiff company.
  • Defended bank against ERISA class action seeking recovery of decline in value of 401(k) accounts from drop in price of employer stock.
  • Represented hospital system in litigation by IRS on whether medical residents were within the “student” exception from social security withholding.
  • Represented a hospital system in litigation raising antitrust, unfair competition, breach of contract and related claims arising from affiliations of and competition between hospital systems.
  • Defended accounting firm against over 500 securities fraud and related claims to recover investments in alleged $250 million ponzi-scheme by the accounting firm’s client.
  • Defended an accounting firm in a multi-party legal and accounting malpractice case, in which plaintiffs claimed excess taxes and other damages exceeding $60 million, because their acquisition of a business used an entity structure that was disadvantageous from a federal income tax standpoint.
  • Obtained a jury verdict for an estate which discovered post-death that decedent’s accounts were “joint” with the decedent’s long-time business manager and sometime girlfriend, who withdrew the funds and closed the accounts immediately following death.
  • Represented the world’s largest owner of advertising agencies in winning a $50 million declaratory judgment in a federal court trial over the lease of an office building.
  • Represented the team owner in claims arising out of the purchase of the Tampa Bay Lightning of the National Hockey League.
  • Represented the team owner in claims involving the Detroit Pistons of the National Basketball Association.
  • Represented one of the nation’s largest owner and operator of venues for concerts and other entertainment.
  • Obtained a five-year injunction and money recovery on an intellectual property claim that trade secret designs were copied and used by a competitor in bids for contracts in China to supply industrial equipment.
  • Obtained dismissal of a $19,200,000 claim against a bank for alleged misuse of Medicare and Medicaid funds, ultimately obtaining court opinions that the Medicare Manual issued by the U.S. Department of Health and Human Services is not consistent with the federal Medicare statute and does not create a legal duty binding on banks.
  • Successfully represented a mortgage broker against oppression and fiduciary duty claims by a minority shareholder alleging corporate decline due to sub-prime mortgages and collapse of the real estate market.
  • Obtained dismissal of a class action claim against a national distiller and supplier of alcoholic beverages, that marketing was improperly targeted at underage drinkers.
  • Represented minority shareholder in litigation against a national tire distribution company, forcing buyout of minority interest.
  • Obtained dismissal of a claim against a defecting professional hockey player, by the Russian Red Army to enforce an exclusive contract to play in Russia, freeing the player for his professional career in the U.S.
  • Represented the campaign of then-Vice President George Bush in litigation of disputes with the Jack Kemp and Pat Robertson campaigns over the election of delegates to the Michigan Republican Party convention. The Bush forces prevailed, and President Bush invited Mr. & Mrs. Haffey to the Inaugural Ball, which they attended.
  • Won a multi-million dollar recovery in excess of policy limits in a bad faith insurance coverage case regarding securities claims from the collapse in value of mortgage-backed derivatives.
  • Represented heirs in recovering from trustee/attorney who breached fiduciary duty in using estate assets to supplement his personal art collection.
  • Won a judgment in favor of Korbel Champagne in the trial of a claim by its statewide Michigan distributor alleging wrongful termination under Michigan’s Wine Franchise Act.
  • Won a multi-million dollar jury verdict for minority shareholder claiming oppression and wrongful termination from a sales agency. 

Professional Teaching & Lectures

Mr. Haffey worked with professors at the University of Michigan Ross School of Business, to create and present an Executive Education program given by Business School faculty to teach leadership within law firms, modeled on programs that train business executives, teaching such subjects as: 

  • Best practices for effective “talent management” in a professional service business where the “talent” is the “product” that the business is selling.
  • Client management, what clients want from providers of legal services, choosing which market segment to serve, and aligning the firm’s talents with client needs.
  • Leadership skills including secrets of success of top leaders, management systems, and a “tool kit” for performing leadership responsibilities.
  • Business basics such as anticipating changes in demand for services, identifying value to be marketed for an intangible product like professional services, cost structure, profitability challenges, and price elasticity.

Mr. Haffey has made presentations at seminars to clients and prospective clients on such subjects as: 

  • “Point-Counterpoint:  New Twists On The Old Debate -- Court or ADR?”
  • “The Corporation as Plaintiff:  How To Play Against A Stacked Deck a/k/a Can Goliath Ever Win?”
  • “Globalization and Consolidation:  New Claims from Dynamic Changes In The Manufacturing Supply Chain”
  • “Disputes Among Shareholders in a Privately-Owned Company”
  • “Valuation:  A Litigation Perspective”
  • “Shareholder Disputes:  The Minority Shareholder Perspective”

Memberships & Involvement

  • American College of Trial Lawyers, Fellow
  • American Bar Association
  • State Bar of Michigan
  • Oakland County Bar Association
  • Federal Bar Association
  • Recipient of an AV® Preeminent™ Rating by Martindale-Hubbell
  • Named Bloomfield Hills "Lawyer of the Year" for Litigation - Banking and Finance by Best Lawyers® for 2015, 2016
  • Named Detroit "Lawyer of the Year" for Litigation - Mergers & Acquisitions and Litigation - Banking & Finance by Best Lawyers® for 2013 and 2018
  • Recognized in The Best Lawyers in America® for Commercial Litigation, Banking and Finance Litigation, Securities Litigation, Trusts and Estates Litigation and Mergers and Acquisitions Litigation, 2000-Present. Copyright 2015 by Woodward/White, Inc., Aiken, SC
  • Named a Michigan Leading Lawyer in the areas of Commercial Litigation and ADR: Commercial Litigation Law by the Leading Lawyers Network, 2014-2017. Law Bulletin Publishing Company
  • Named a Leading Litigation: General Commercial Lawyer by Chambers USA – America’s Leading Lawyers for Business, 2004-2018
  • Recognized in Michigan Super Lawyers® for Business Litigation, Securities Litigation, and Professional Liability Defense, 2006-Present
  • Named a Litigation Star by Benchmark Litigation, 2013-2018
  • Named a Top Lawyer by dbusiness Magazine for Commercial Litigation, Litigation - Banking and Finance, Litigation - Mergers and Acquisitions, Litigation - Securities, and Litigation - Trusts and Estates, 2010-2011, 2015-2016