Honigman Business Law Firm: Attorneys, Lawyers Honigman is a law firm with attorneys and lawyers who practice in a variety of legal areas, including, corporate and securities, litigation, private equity, intellectual property, antitrust, immigration, bankruptcy, finance, tax, health care, real estate, data security, captive insurance, labor and employment, cyber security, mergers and acquisitions, anti-trust, patent, trademark, and venture capital. Our offices are located in Michigan: Detroit, Ann Arbor, Bloomfield Hills, Chicago, Lansing, Kalamazoo, and Grand Rapids.