Mr. Callahan advises business and real estate clients on a wide range of planning and transactional matters, including mergers, acquisitions, divestitures and reorganizations. He also has extensive experience negotiating, structuring and closing debt and equity financing transactions including commercial financings and secured transactions. Mr. Callahan also practices real estate law representing developers, lenders, and property owners in a wide variety of development, acquisition, sale and financing transactions. He also assists these clients in obtaining permits and approvals from state and local authorities for the development and use of real estate.

• Member, New Hampshire and Massachusetts Bar Associations.
• Director, Monadnock Worksource;
• Founder, Director and Vice-President, Conval Community Scholarship Foundation;
• Director, National Kidney Foundation of Massachusetts, Rhode Island, New Hampshire & Vermont;
• Former Town Counsel and Zoning Board Chair, Peterborough, New Hampshire.