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Your Trusted Legal Partner in Grand Haven
At Guinan Bisonet, we prioritize understanding our clients' unique needs and business contexts to deliver tailored legal solutions. Our approach emphasizes holistic counsel over transactional interactions, ensuring we address both immediate concerns and long-term objectives. We operate with lean efficiency, eliminating unnecessary overhead costs so clients invest directly in legal expertise rather than physical infrastructure. Our team remains accessible when needed most, combining responsiveness with deep industry knowledge across employment law, estate planning, transportation regulations, and business succession strategies.

With decades of collective experience serving West Michigan businesses, we blend local market insight with sophisticated legal capabilities typically found in larger firms. Our attorneys maintain active involvement in professional associations like the State Bar of Michigan and American Bar Association while earning recognition for specialized expertise in areas such as Medicaid planning and estate tax optimization. By integrating legal disciplines through collaborative teamwork, we help clients navigate complex challenges while maintaining compliance with evolving federal and state regulations.
Services
Employment Law Estate Planning Transportation Law Asset Protection Business Succession
Highlights and features
  • We maintain lean operations to maximize client value
  • Our attorneys hold specialized certifications in estate planning
  • We serve West Michigan businesses with localized expertise
  • We combine legal specialties through collaborative teamwork
  • Our team includes recognized Medicaid planning specialists
Associations and certifications
  • State Bar of Michigan
  • United States District Court, Western District of Michigan
  • United States District Court, Eastern District of Michigan
  • American Bar Association
Services
Employment Law
Our employment law practice represents employers and employees in wage disputes, discrimination claims, and contract negotiations. We handle non-compete agreements, ADA/FMLA compliance, and EEOC mediations while maintaining ethical neutrality between parties. Our attorneys protect client interests through strategic counsel on workforce management and regulatory compliance.
Estate Planning
We create customized estate plans for individuals and business owners, including wills, trusts, and Medicaid strategies. Our services address tax optimization, probate avoidance, and business succession while incorporating healthcare directives and asset protection. We serve clients with estates ranging from modest to high-net-worth portfolios.
Transportation Law
Specializing in transportation industry regulations, we advise motor carriers, brokers, and 3PLs on federal/state compliance, cargo liability, and contract disputes. Our services cover bill of lading issues, insurance indemnification, and bankruptcy matters specific to logistics operations while addressing tort liability concerns.
Asset Protection
We develop legal strategies to safeguard assets for professionals and business owners through entity structuring and trust arrangements. Our planning integrates estate and tax considerations to minimize exposure while maintaining liquidity for family needs and business continuity requirements.
Business Succession
We facilitate ownership transfers for closely-held businesses using buy/sell agreements and valuation techniques. Our approach balances family dynamics with corporate objectives through recapitalization strategies and intergenerational wealth transfer mechanisms while ensuring operational continuity.
People
John M. Guinan
Attorney
John focuses on estate planning, probate litigation, and Medicaid law with additional expertise in real estate and business law. He holds a JD from Western New England College and BA in Philosophy from Albion College. Admitted to Michigan state courts and federal districts.
Questions
What legal services do you specialize in?
We specialize in employment law, estate planning, transportation regulations, asset protection, and business succession planning while handling additional matters like probate administration and non-profit formation.
How do you approach client representation differently?
We combine lean operations with personalized service, eliminating overhead costs while maintaining accessibility. Our holistic approach integrates multiple legal disciplines through collaborative teamwork for comprehensive solutions.
Can you assist with complex estate tax planning?
Yes, we create customized plans for high-net-worth clients using advanced techniques like grantor-retained annuity trusts and self-canceling installment notes to minimize estate tax liabilities.
Do you represent both employers and employees?
Our employment law practice maintains ethical neutrality, representing both parties in wage disputes, discrimination claims, and contract negotiations while ensuring compliance with federal and state regulations.