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Joseph Maternowski

Joseph Maternowski

Shareholder. Provides a range of transactional and litigation related services.
  • Environmental Law, Real Estate Law, Gov & Administrative Law ...
  • Minnesota
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Joseph Maternowski is a shareholder at the Hessian & McKasy firm in Minneapolis practicing in the areas of environmental, real estate and business law. Joe began his legal career in the Minnesota Attorney General's Office where he represented the Minnesota Pollution Control Agency. Joe focuses his private practice on environmental matters arising in real estate and business transactions. Joe has extensive experience with site investigations and cleanups, vapor intrusion assessments, state Brownfields programs and with federal and state environmental agencies. Joe assists real estate and business lawyers and in house counsel on transactions where environmental issues arise. He helps clients obtain liability assurances from state and federal authorities and is often involved with enforcement defense and cost recovery litigation. Joe tracks developments in environmental law and compliance on his blog that can be found on his website.

Joe's clients view him as trusted adviser. Joe is an experienced attorney who has been active in the Minnesota State Bar Association serving as Chair and Section Council member of the MSBA's Environment, Natural Resources and Energy Law Section. Joe is a frequent speaker at CLEs and recently was asked to prepare a series of CLEs on environmental law topics that are directed to business and real estate attorneys. Joe serves as outside environmental counsel to a number of national, regional and local corporations.

The Hessian & McKasy law firm provides a range of services to its clients. For more information about the Firm and our attorneys please visit our website at

Practice Areas
Environmental Law
Real Estate Law
Commercial Real Estate, Condominiums, Easements, Eminent Domain, Homeowners Association, Land Use & Zoning, Mortgages, Neighbor Disputes, Residential Real Estate, Water Law
Gov & Administrative Law
Administrative Law, Election Law, Government Contracts, Government Finance, Legislative & Government Affairs
Business Law
Business Contracts, Business Dissolution, Business Finance, Business Formation, Business Litigation, Franchising, Mergers & Acquisitions, Partnership & Shareholder Disputes
  • Free Consultation
    No charge for initial consultation prior to engagement. Engagement documented through Retainer Agreement.
  • Rates, Retainers and Additional Information
    Hourly rate and in some case Fixed Fee arrangements.
Jurisdictions Admitted to Practice
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Professional Experience
Hessian & McKasy, PA
- Current
Mr. Maternowski advises clients on matter on business and real estate matters including transactions where environmental issues are a concern. Mr. Maternowski has conducted due diligence for a leading telecommunications provider in States across the Upper Midwest. Mr. Maternowski assist clients on permitting and enforcement maters before federal, state and local agencies.
Moss & Barnett, PA
Chair Environmental Law Practice Group. Represented clients in litigation in state and federal court. Advised clients on permitting and enforcement matters. Managed multi-State environmental due diligence portfolio for prominent telecommunications company. Successfully represented developed in challenge to Minnesota Pollution Control Agency Administrative Penalty Order. Court order attorneys fee award under Minnesota Equal Access to Justice.
Hessian & McKasy, PA
Represented corporations, units of local government and individuals on various environmental matters. Represented client in a state litigation over civil penalties for RCRA violations. Individual defendants were dismissed and Court awarded attorneys fees to individuals under the Minnesota Equal Access to Justice Act. Served as Common Counsel for group of responsible parties at a scrap yard operation that had been designated as a Superfund site.
Lindquist & Vennum (now Ballard Spahr)
Provided advice on transactional matters including environmental issues arising in mergers and acquisitions. Assisted in litigation in federal and state court including cost recovery claims. Provide counsel on matters before state and federal administrative agencies.
Special Assistant Attorney General
State of Minnesota Office of Attorney General
Represented State agencies including the Minnesota Pollution Control Agency and the Minnesota Department of Agriculture on enforcement and permitting matters. Appeared for the State in administrative and court proceedings.
Temple University Beasley School of Law
J.D. | Law, Environmental Law
Activities: Founding Member of Temple Journal of Science, Technology and Environmental Law
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Yale University
B.A. (1978) | American History
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Professional Associations
Minnesota State Bar
- Current
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Minnesota State Bar Association
Chair, Environmental, Natural Resources and Energy Law Section
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Websites & Blogs
Hessian & McKasy, PA
Contact & Map
Hessian & McKasy, PA
3700 RBC Plaza
60 South 6th Street
Minneapolis, MN 55402
Telephone: (612) 746-5754
Fax: (612) 746-5755