Your board meets in Boston. Your program operates in Hartford. Your advocacy is in Washington. You don’t need three firms. You need one.
Commonlight Legal’s managing partners are actively licensed in Connecticut, New York, Massachusetts, and the District of Columbia. We advise nonprofits, schools, and mission-driven organizations across all four jurisdictions without external handoffs, local-counsel fees, or regulatory gaps.
Four jurisdictions. One firm.
Connecticut
Primary firm home. Nonprofit formation and governance, data privacy compliance, and private foundation regulations. Charter and independent school advocacy, administrative appeals before the State Department of Education, Superior Court, and Appellate Court. Lobbying compliance.
Connecticut DetailsMassachusetts
Nonprofit formation, governance, and employment across Boston-area and statewide missions. Form PC filings. MA wage-and-hour counseling. Independent school governance. Grant-making organizations. Community sports leagues.
Massachusetts DetailsNew York
Public charities, private foundations, and nonprofit compliance, including CHAR500 registration, charities bureau oversight, and NYC-specific regulatory requirements (including Local Law 144 for AI in employment decisions).
New York DetailsWashington, D.C.
Federal advocacy compliance, 501(c)(4) structures, LDA registration, and nonprofit counsel for DC-headquartered and nationally focused organizations. BRA-25 compliance and DC charitable solicitation.
D.C. DetailsSingle state or multijurisdictional. We have you covered.
Address
Commonlight Legal LLP
320 Boston Post Rd Ste 180-130
Darien, CT 06820
Contact
Lauren Koster, Managing Partner
Office: (203) 424-0120
Fax: (212) 273-4320
Email: info@commonlight.legal
Where we’ve worked
Cromwell. Danbury. Darien. Hamden. Hartford. Middletown. New Haven. Newington. North Branford. Norwich. Waterbury.
Who we’ve worked with
Advocacy organizations. Charter management organizations. Charter schools. Membership organizations. Public Charities. Private foundations.
Address
Commonlight Legal LLP
867 Boylston St
Ste 500 Unit #1330
Boston, MA 02116
Contact
Alex Booker, Managing Partner
Office: (617) 297-7160
Fax: (212) 273-4320
Email: info@commonlight.legal
Where we've worked
Arlington. Boston. Cambridge. Mansfield. Oak Bluffs.
Who we've worked with
Advocacy organizations. Fiscally sponsored projects. Grant-making entities. Public charities.
Address
Commonlight Legal LLP
353 Lexington Avenue
4th Floor PMB 267
New York, NY 10016
Contact
Lauren Koster, Managing Partner
Office: (914) 609-6642
Fax: (212) 273-4320
Email: info@commonlight.legal
Where we’ve worked
Hudson Valley. New York City.
Who we’ve worked with
Advocacy organizations. Public Charities. Private foundations.
Address
Commonlight Legal LLP
1930 18th St NW
Suite B2 #1079
Washington, DC 20009
Contact
Alex Booker, Managing Partner
Office: (202) 941-3639
Fax: (212) 273-4320
Email: info@commonlight.legal
Who we've worked with
Launched in 2026. Accepting new clients. Schedule a complimentary consult today.
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