Atty. James M. Callahan

Atty. James M. Callahan

Jim Callahan serves as “of counsel” to Shaheen & Gordon. Jim has been practicing in New Hampshire and Massachusetts for more than 35 years, focusing on business & corporate, banking & finance, and real estate law.

Peterborough Peterborough 41 yrs experience 41 year
Call (603) 713-4907 Book Appointment

Profile Summary

About James M. Callahan at a glance

James M. Callahan is a Partner based in Peterborough, New Hampshire, practicing at Shaheen & Gordon, P.A.. They have 41+ years of legal experience, licensed to practice since 1985. Their practice focuses on business and real estate. Admitted to practice in New Hampshire (1985) and Massachusetts (1995). Educated at University of Maine School of Law (J.D., 1985) and Northwestern University, Kellogg School of Management M.B.A. University of Massachusetts at Amherst (B.A., 1982). Recognitions include BV Distinguished. Active member of Nashua, New Hampshire, Massachusetts and American Bar Associations. Serands clients in Peterborough, NH and the surrounding metropolitan area.

Verified attorney profile · Updated June 2026

About

  • Jim Callahan serves as “of counsel” to Shaheen & Gordon
  • Jim has been practicing in New Hampshire and Massachusetts for more than 35 years, focusing on business & corporate, banking & finance, and real estate law
  • His wealth of knowledge is invaluable to clients as he advises them on planning, operational, and transactional matters, including leasing, land use and development, mergers, acquisitions, divestitures, and reorganizations
  • In addition to his legal experience, Jim holds an MBA with a finance concentration and brings these added skills to his practice
  • He has extensive experience negotiating, structuring and closing debt and equity financing transactions including commercial financings and secured transactions
  • In recent years Jim has developed a subspecialty in the purchase and sale of independently owned (RIA) financial advisory firms
  • Jim was raised on Cape Cod but has called Peterborough home for more than three decades
  • He has served as Peterborough Town Counsel, Zoning Board Chair, and is currently the Board Chair of Monadnock Community Hospital
  • Professional and Community Involvement • New Hampshire and Massachusetts Bar Associations • Monadnock Community Hospital, Board Chair and Trustee • Monadnock Worksource, Former Director and Board Chair • Town of Peterborough, New Hampshire, Former Town Counsel and Zoning Board Chair Publications and Presentations • Business Acquisition from Start to Finish – National Business Institute • Stock v
  • Asset Purchase – National Business Institute • Preparing Your Client to Sell Their Business – SCORE of Cape Cod • Business Succession Planning – Estate Planning Council of Cape Cod • Exiting Your Business – Plymouth, Massachusetts Chamber of Commerce Representative Cases Business & Succession Planning Transactions • Represents purchasers and sellers of financial services advisory firms (RIA’s) • Represented seller of technology services company • Represented purchaser of multiple home centers/lumber yards • Represented sellers and purchasers of various professional services firms (medical, dental, accounting) • Advised consulting firms, professional services firms, and construction services firms on internal succession plans • Represented purchaser of well-known regional lifestyle and business publications • Counsel to numerous businesses on operational matters • Advised numerous businesses on internal and external succession planning transactions Financing Matters • Approved Counsel for M&T Bank, T.D
  • Bank, Eastern Bank, The Cooperative Bank of Cape Cod, NBT Bank, Savings Bank of Walpole • Counsel on thousands of banking transactions, including commercial real estate mortgages, construction loans, asset-based loans, letter of credit transactions, SBA loans, and loan participations Real Estate Transactions • Counsel for major outdoor retailer on leasing matters • Counsel for acquisition and sale of credit tenant-based shopping centers • Counsel for sellers and purchasers of credit tenant-based commercial real estate • Counsel for numerous sellers and purchasers of estate properties • Counsel on thousands of real estate transactions • Agent for First American Title Insurance Company and Chicago Title Insurance Company Land Use and Real Estate Development • Counsel for land use and permitting matters related to the construction of “big box” retail stores • Counsel for international quick service restaurants on multiple New Hampshire site permits • Land use counsel for development of assisted living facilities • Land use counsel for several of the first medical marijuana facilities in Massachusetts • Counsel for numerous condominium and subdivision developments
  • including land use, preparation of governance and condominium documents, and New Hampshire Attorney General approvals

Practice Areas Explained

James M. Callahan's Areas of Practice

Each practice area below reflects the types of cases James M. Callahan handles, with a brief overview of what that area of law covers.

Business & Corporate Law

Business attorneys advise founders and growing companies on entity formation, contracts, financing, M&A, and dispute resolution.

James M. Callahan is one of 501,317 business attorneys indexed nationally. Browse business attorneys in New Hampshire →

Real Estate Law

Real estate attorneys handle home purchases, sales, commercial transactions, title disputes, and landlord-tenant matters.

James M. Callahan is one of 316,149 real estate attorneys indexed nationally. Browse real estate attorneys in New Hampshire →

Jurisdictional Context

Why local counsel matters in New Hampshire

Practicing law in New Hampshire. Legal matters in New Hampshire are governed by state-specific rules of civil and criminal procedure, statutes of limitations, and substantive law. Cases originating in Peterborough are typically filed in the local municipal court or the appropriate New Hampshire state district court, depending on subject matter and amount in controversy. An attorney licensed in New Hampshire brings working knowledge of local procedural deadlines, judicial practices in this andnue, and the substantive law that applies to cases brought here. Out-of-state attorneys generally cannot represent clients in New Hampshire courts without local counsel or pro hac vice admission.

Looking for additional New Hampshire attorneys? Browse all attorneys in Peterborough or all attorneys in New Hampshire.

Frequently Asked

Common questions about James M. Callahan

Where is James M. Callahan's law office located?
James M. Callahan's law practice is located in Peterborough, New Hampshire. The firm is Shaheen & Gordon, P.A.. You can contact the office directly through this profile page.
What practice areas does James M. Callahan handle?
James M. Callahan focuses on business, real estate. Each practice area listed reflects experience handling cases of that type in New Hampshire.
How long has James M. Callahan practiced law?
James M. Callahan has 41+ years of legal experience and has been licensed since 1985.
Where did James M. Callahan go to law school?
James M. Callahan earned their education at (J.D., 1985); (B.A., 1982).
How can I contact James M. Callahan for a consultation?
You can contact James M. Callahan directly through this profile page. Click "Ask the Attorney" to submit a question, or "Schedule a Consultation" to book a meeting. Most claimed-profile attorneys respond within one business day.
What awards or recognition has James M. Callahan received?
James M. Callahan's notable recognition includes: BV Distinguished.

Education

J.D.
University of Maine School of Law
- 1985
B.A.
Northwestern University, Kellogg School of Management M.B.A. University of Massachusetts at Amherst
- 1982

Awards

BV Distinguished

Bar Admissions

New Hampshire
Admitted: 1985
Massachusetts
Admitted: 1995

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