Peter G. Callaghan

Lauren Breda is a top attorney recognized by Best Lawyers in the practice area(s) of Criminal Defense: General Practice. Lauren, who practices law in Concord, New Hampshire, has been recognized since 2026. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Lauren is held by other top lawyers in the same geographic and legal practice area.

M. Curtis Whittaker has been a shareholder of the firm since 1991. Curt heads the firm’s Energy Practice Group, and is a member of the Corporate/Business Law Group. Curt works with developers, owners, operators, investors and lenders in the alternative energy area, including biomass, hydropower, wind, solar, cogeneration and alternative fuels. While at Harvard Law School, Curt took aim at a career in the alternative energy sector by authoring a law review article on the history of hydro...

Brian M. Quirk is a top attorney recognized by Best Lawyers in the practice area(s) of Criminal Defense: White-Collar. Brian M., who practices law in Concord, New Hampshire, has been recognized since 2018. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Brian M. is held by other top lawyers in the same geographic and legal practice area.

Virginia Symmes Sheehan is a Martindale-Hubbell AV rated attorney and a fellow of the American College of Trust and Estate Counsel (ACTEC) with many years of experience in the area of trusts and estates. She is actively engaged in the areas of estate planning, elder law, estate and trust administration, federal and state transfer (estate, gift and generation-skipping) taxation and federal and state income (personal and fiduciary) taxation. Virginia’s experience includes all phases of administ...

Jeffrey Manganaro is a top attorney recognized by Best Lawyers in the practice area(s) of Family Law. Jeffrey, who practices law in Concord, New Hampshire, has been recognized since 2026. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Jeffrey is held by other top lawyers in the same geographic and legal practice area.

Sherry Young is a founder and President of the firm. She heads the firm's Environmental Practice Group, and assists clients on federal and state environmental matters, real estate transactions, and business and finance transactions. Sherry focuses her practice on environmental law, including environmental compliance, permits and approvals, and real estate transactions involving contaminated properties. She has extensive experience in negotiating with state and federal regulators, and has achi...

William F. J. Ardinger is a shareholder and the Treasurer of Rath, Young and Pignatelli, P.C. He serves on the Firm’s Executive Committee and heads the Firm’s Tax Practice Group. Bill focuses his practice on U.S. federal and state tax matters, business transactions, financial and wealth planning, and public policy issues. He assists clients in structuring business transactions in a tax-efficient manner and planning multi-jurisdictional business structures and systems. Bill represe...

Erin’s practice is focused on a broad range of commercial real estate matters. She represents developers, retailers, service providers and institutions in transactions involving all classes of real estate assets, both regionally and nationally. Erin specializes in transactions involving retail assets, including the negotiation of complex leases and subleases on behalf of both landlords and tenants. She regularly represents clients in connection with the acquisition, financing and sale o...

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

Jonathan is an experienced civil litigator. He has practiced in New Hampshire for more than twenty years, after starting his career in the Boston office of a national firm. Jonathan focuses the bulk of his practice on medical malpractice defense, and represents medical professionals in litigated disputes and in investigations by state licensing agencies. His diverse practice also includes managing complex litigation in civil rights, environmental insurance coverage, construction law, and admi...