About
Denis O. Robinson is a Partner at Pierce Atwood in Portsmouth with a commercial real estate practice developed over more than two decades in New Hampshire. He advises clients on acquisitions, sales, leasing, financing, development, due diligence, and related property matters. His work ranges from major resort and retail transactions to medical office development, subdivisions, and build-to-suit leasing arrangements, with close attention to the legal details affecting project execution.
Denis earned a J.D. from the University of New Hampshire and a B.S. in Industrial Management, with University Honors, from Carnegie Mellon University. His education supports his commercial real estate practice, including acquisitions, leasing, financing, development, and due diligence. He draws on prior experience serving as general counsel for a financial company and advising institutions on creditor issues. This background informs his approach to real estate transactions, financial arrangements, and property development projects.
Denis has represented clients in commercial purchases, sales, leasing, financing, and development and has advised government and financial institutions on foreclosure, debt restructuring, and bankruptcy issues. Representative matters include acquisition and financing of a major New Hampshire ski area, development of more than 100,000 square feet of medical office space, negotiation of a large corporate headquarters lease, and registration and development of a 140-lot residential subdivision.
Denis O. Robinson is recognized by Best Lawyers in America for Real Estate Law and serves in professional and civic organizations connected to business and community development. His activities include the Business and Industry Association and the New Hampshire Bar Association Real Estate Section, including work on the Title Standards Review Committee. His practice combines transactional experience, finance knowledge, land development work, and creditor-rights insight for complex New Hampshire real estate matters.
Law Office Affiliations
- Partner, Pierce Atwood LLP
- Member, New Hampshire Bar Association
- Member, New Hampshire Bar Association, Real Estate Section
- Board Member, Business and Industry Association
- Board Member, Manchester Police Athletic League
- Member, Bedford Library Foundation
- Former Member, Manchester Economic Redevelopment Committee
- Former Member, Hudson Planning Board
- Former Member, Nashua Regional Planning Commission
Licensed State
- New Hampshire
Education
- University of New Hampshire Franklin Pierce School of Law
Juris Doctor (JD) - Carnegie Mellon University
B.S., Industrial Management, University Honors
Awards & Badges

- Bankruptcy
- Commercial Real Estate
- Construction & Development
- Corporate & Incorporation
- Creditor Debtor Rights
- Foreclosure
- Landlord & Tenant
- Land Use & Zoning
- Real Estate
- Residential Real Estate





