Andrew Grantham KC

Advises health care providers of all types on regulatory, privacy, corporate, contracting, licensing, risk management, fraud and abuse, cyber security, and patient care issues. Represents physicians and dentists in employment and professional practice transitions including negotiating employment contracts, associate buy-ins, and practice sales and acquisitions. Represents physicians, nurses, and other medical professionals before licensure boards such as the Board of Medicine and Board of Nur...

Joseph G. Mattson is a top attorney recognized by Best Lawyers in the practice area(s) of Health Care Law, Insurance Law and Medical Malpractice Law - Defendants. Joseph G., who practices law in Manchester, New Hampshire, has been recognized since 2025. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Joseph G. is held by other top lawyers in the same geographic and legal practice area.

Jim is a senior member of the litigation department and serves as the firm’s general counsel. He has successfully handled litigated cases in state and federal court in New Hampshire and in neighboring jurisdictions for over 35 years. Over time, he has focused on matters involving commercial disputes, professional negligence, product liability, toxic torts, real estate and insurance coverage. In addition, Jim has been active throughout his career in promoting lawyer continuing legal educ...

Michael Mortimer is a top attorney recognized by Best Lawyers in the practice area(s) of Workers' Compensation Law - Employers. Michael, who practices law in Manchester, New Hampshire, has been recognized since 2024. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Michael is held by other top lawyers in the same geographic and legal practice area.

Tabitha Croscut is a top attorney recognized by Best Lawyers in the practice area(s) of Closely Held Companies and Family Businesses Law, Corporate Governance Law and Mergers and Acquisitions Law. Tabitha, who practices law in Manchester, New Hampshire, has been recognized since 2022. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Tabitha is held by other top lawyers in the same geographic and legal practice area.

Mark Knights is a member of the Government Investigations & White Collar Defense practice group and lead of the Global Compliance & Investigations team. He represents individuals and businesses across a variety of industries in connection with matters involving the Foreign Corrupt Practices Act, the Anti-Kickback Statute, the False Claims Act, and other federal and state laws. Prior to joining Nixon Peabody, Mark served as a law clerk for Judge Mary Beck Briscoe of the U.S. Court of A...

James Callahan is a top attorney recognized by Best Lawyers in the practice area(s) of Banking and Finance Law, Business Organizations (including LLCs and Partnerships) and Real Estate Law. James, who practices law in Peterborough, New Hampshire, has been recognized since 2026. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which James is held by other top lawyers in the same geographic and legal practice area.

John Beals is a partner in Nixon Peabody's Private Equity and Investment Funds practice. He represents public pension funds, funds of funds and other institutional investors in connection with their investments in leveraged buyout, venture capital, real estate and debt private equity funds. He also advises fund sponsors in structuring and forming such funds. What do you focus on? I focus my practice on two main areas, leveraging 20 years of experience to help clients structure, negotiate and ...

Pierre A. Chabot is a top attorney recognized by Best Lawyers in the practice area(s) of Employment Law - Management and Medical Malpractice Law - Defendants. Pierre A., who practices law in Manchester, New Hampshire, has been recognized since 2024. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Pierre A. is held by other top lawyers in the same geographic and legal practice area.

I chair our firm’s Mergers & Acquisitions Team of 15 transactional attorneys and tax specialists and assist our firm clients with regard to achieving their estate planning objectives. Having more than 30 years’ experience as an M&A attorney and corporate advisor, combined with being a CPA and having a master’s degree in taxation, provides me with a unique background and perspective to advise the firm’s business clients in achieving their goals in the most timel...