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Quick answer
John S. Kaminski is an attorney based in Portland, MAINE. The practice focuses on Tax.
- Based in
- Portland, MAINE
- Experience
- attorney
- Known for
- Tax
- Handles Tax matters from Portland, MAINE.
- Recognized with Lawyer of the Year — Tax Law, Portland (ME) (2025).
About John S. Kaminski: John S. Kaminski is an attorney based in Portland, MAINE. The practice focuses on Tax.
Areas of practice
Practice focus
John S. Kaminski represents clients in Portland, Maine across the following areas of law. Each area links to other verified attorneys with the same focus.
Biography
About John S. Kaminski
John Kaminski’s practice is centered on business transactions and tax law with an emphasis on community and project development. He leverages a combination of tax and transactional expertise to help clients achieve their objectives.
John regularly advises developers and lenders involved in real estate development, affordable housing projects, and historic rehabilitation projects. He has worked with for-profit and non-profit developers on mixed commercial and residential developments, federal and Maine historic rehabilitation tax credit projects, low-income housing tax credit projects, project financing with the Maine State Housing Authority and other state housing authorities, resyndication and refinancing of existing housing projects, and U.S. Department of Housing and Urban Development programs. His community development projects also include work with New Markets Tax Credit.
John serves as lead counsel for Midcoast Regional Redevelopment Authority, the public agency established to redevelop the former Brunswick Naval Air Station, which closed in 2011. The redevelopment effort has involved over $400 million in public and private sector financing, property transfers through property sales or commercial leases to over 135 business users, and the creation of over 2400 jobs. The private sector financing involved three New Markets Tax Credit projects totaling approximately $45 million.
John often advises clients on individual and business tax matters and on estate planning. He also handles federal tax cases at the audit, appellate, National Office and U.S. Tax Court levels, and has represented clients in state tax cases at the Maine Revenue Services and in Maine courts. He also represents clients requesting private letter rulings from the Internal Revenue Service.
John is listed in New England Super Lawyers and Best Lawyers in America in the field of Tax Law, is a frequent speaker at professional seminars and has taught courses in business and tax law as an Adjunct Professor at the University of Maine School of Law and the University of New England.
Credentials
Education
The George Washington University
J.D. · 1979
Recognition
Awards & honors
Lawyer of the Year — Tax Law, Portland (ME)
2025
Lawyer of the Year — Tax Law, Portland (ME)
2020
Lawyer of the Year — Tax Law, Portland (ME)
2017
Best Lawyers in America — Tax Law
2026
Locations
Office locations
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Schedule your consultationFrequently asked
Common questions
What areas of law does John S. Kaminski practice?
John S. Kaminski focuses on Tax.
Where is John S. Kaminski located?
John S. Kaminski primarily serves clients in Portland, Maine, with an office at 84 Marginal Way, Suite 600.
Is John S. Kaminski a verified attorney?
John S. Kaminski's profile is listed but has not yet been claimed by the attorney. Verification status is pending.
How can I schedule a consultation with John S. Kaminski?
You can book a consultation through LawyersListed directly from this page. Initial outreach can also be made by phone at 207-772-1941.





