Andrew Leaitherland

Michael is the President and Managing Director of Shaheen and Gordon, P.A. He concentrates his practice on representing seriously injured victims of negligence. Michael received his undergraduate degree from the University of Massachusetts at Amherst in 1987 and in 1990 graduated from the Boston University School of Law, where he was honored as a Paul J. Liacos scholar. Michael began his litigation practice with the firm in 1990 and rapidly developed a significant trial practice representing ...

Jennifer R. Rivett is a lawyer recognized by Best Lawyers in the practice areas of Litigation - Trusts and Estates and Trusts and Estates. Jennifer R. practices law in Manchester, New Hampshire Best Lawyers has recognized Jennifer R. Rivett since 2022. The Best Lawyers recognition is based on a peer-review survey of lawyers in the same geographic region and legal practice area. The recognition reflects the professional regard in which Jennifer R. Rivett is held by other lawyers.

Pam represents individuals in divorce, domestic relation issues and Hague Convention cases. As an advocate in court and a steady counselor, Pam assists her clients in the complex areas of divorce and domestic relations law. Pam is also a New Hampshire Certified Marital Mediator so she conducts mediation in a private setting and is regularly appointed as a mediator in different family courts. She also has a background in environmental law and wrote an amicus brief for a New Hampshire Supreme C...

Joseph G. Mattson is a lawyer recognized by Best Lawyers in the practice areas of Health Care Law, Insurance Law and Medical Malpractice Law - Defendants. Joseph G. practices law in Manchester, New Hampshire Best Lawyers has recognized Joseph G. Mattson since 2025. The Best Lawyers recognition is based on a peer-review survey of lawyers in the same geographic region and legal practice area. The recognition reflects the professional regard in which Joseph G. Mattson is held by other lawyers.

Margaret has over twenty-five years of experience concentrating on high-asset and complex divorce cases. Margaret’s clients include business owners, public figures, elected officials, executives of publicly traded companies, successful inventors, tech entrepreneurs, attorneys, doctors, dentists, retirees, those with generational wealth, and many others. Her cases regularly involve issues relating to the valuation and division of complex assets such as business interests, private equity,...

Matthew J. Delude is a lawyer recognized by Best Lawyers in the practice areas of Appellate Practice, Bankruptcy and Creditor Debtor Rights / Insolvency and Reorganization Law and Commercial Litigation. Matthew J. practices law in Manchester, New Hampshire Best Lawyers has recognized Matthew J. Delude since 2024. The Best Lawyers recognition is based on a peer-review survey of lawyers in the same geographic region and legal practice area. The recognition reflects the professional regard in wh...

Since 1978, Joe has dedicated his legal career to the representation of individual plaintiffs in personal injury litigation. Joe is currently a member of the New Hampshire Supreme Court Committee on Character & Fitness. He is a member of the American College of Trial Lawyers and the Million Dollar Advocates Forum and he has been a 20 year member of Best Lawyers in America. Joe McDowell was one of the lead lawyers in the $2.5 Billion settlement for the victims of the Dalkon Shield birth co...

William H. Shaheen is a lawyer recognized by Best Lawyers in the practice areas of Family Law and Personal Injury Litigation - Plaintiffs. William H. practices law in Dover, New Hampshire Best Lawyers has recognized William H. Shaheen since 2021. The Best Lawyers recognition is based on a peer-review survey of lawyers in the same geographic region and legal practice area. The recognition reflects the professional regard in which William H. Shaheen is held by other lawyers.

Denis Robinson's diverse commercial real estate practice has developed over a span of two decades in New Hampshire. Whether involved in the acquisition of a major NH ski area or retail center, the development of medical office space or a large scale subdivision, the negotiation and drafting of build to suit leasing arrangements, or the management of due diligence for a wide range of real estate projects, Denis focuses on the legal details that matter to the project's success.

Dave serves as President and Managing Director of the firm. He also maintains an active practice. Dave represents firm clients in state and federal courts, arbitration and administrative proceedings. He routinely handles trade secret, non-competition, predatory hiring, discrimination, retaliation and whistleblower, wrongful termination, and healthcare related matters. He also frequently helps businesses and executives navigate employment separations. Dave is a certified mediator who serves in...