About Us At the Law Offices of Mark A. Gallant, P.C., our attorney has been offering detailed legal advice to clients in Greater Boston and Southern New Hampshire since 1981. With your best interests and your unique needs always in mind, our firm strives to provide the personalized and informative legal assistance you need to find resolutions, regardless of the practice area under which your situation falls. Litigation Attorney; Family Law - Domestic, Divorce, Wills, Probate, Trust. Personal Injury Accidents. Licensed in Massachusetts and New Hampshire. Mediation Services - Divorce - Martial - Personal Injury Matters