D'Ambrosio LLP

D’Ambrosio LLP is a Boston-based boutique law firm, of twenty accomplished attorneys, known for its extensive experience in both transactional and litigation matters. With deep roots in Massachusetts’ business, legal and public interest communities, the firm’s lawyers serve on numerous private and public boards, reflecting their broad influence and trusted counsel. D’Ambrosio LLP represents clients ranging from national corporations to individual entrepreneurs, delivering the same high-caliber, personalized service that defines a premier boutique practice. In a climate of economic uncertainty and rapid change, the firm remains steadfastly focused on one priority: achieving exceptional results for its clients.

• Real Estate/Economic Development: D’Ambrosio LLP provides counsel on sophisticated real estate transactions, guiding clients through every stage, from entity formation and acquisition to financing, development, management, and ultimate sale. The firm’s work spans land purchases, project approvals, zoning and land-use compliance, title and registration matters, and post-completion issues such as leasing, tenancy disputes, and liability claims. Its attorneys also bring deep experience in handling matters concerning eminent domain, easements, encroachments, adverse possession, and construction warranty disputes, delivering practical strategies that protect investments and advance client objectives.
• Business Litigation: D’Ambrosio LLP advocates for businesses and entrepreneurs of every size in high-stakes commercial disputes, leveraging extensive trial experience to develop strategies precisely aligned with each client’s goals. The firm handles a broad spectrum of matters including breach of contract, partnership disputes, shareholder conflicts, unfair trade practices, real estate and zoning appeals, breaches of fiduciary duty, employment disputes, and non-competition agreements. With proven success across industries including private equity, technology, logistics, and real estate development, D’Ambrosio LLP represents clients throughout Massachusetts, across the United States, and internationally.
• Outside Counsel: D’Ambrosio LLP assists privately held companies navigate complex legal and regulatory requirements with practical, cost-effective strategies. The firm counsels clients on corporate formation and governance, capital-raising initiatives, early-stage mergers and acquisitions, employment and non-compete issues, executive compensation, and commercial disputes. Its attorneys also craft and negotiate contracts, shareholder and operating agreements, and represent clients before federal and state agencies on a full range of regulatory matters.

• D’Ambrosio LLP serves as legal counsel to Blackstone/Link Logistics in the landmark decommissioning and redevelopment of a 44-acre oil tank farm in Greater Boston. As part of a $500 million investment, the project will remove 29 above-ground fuel storage tanks and remediate up to 69 historical releases of petroleum and other hazardous materials. Over two phases, the site will be transformed with approximately 670,000 square feet of state-of-the-art warehouse space designed to meet the region’s surging demand for technology-enabled logistics capacity, with additional phases planned for future expansion.
• D’Ambrosio LLP represented Amazon in the redevelopment of a prominent 102,000-square-foot parcel in Greater Boston, supporting the company’s continued expansion to meet rising online demand. The firm provided strategic counsel throughout the process, secured zoning approvals, ensured regulatory compliance, and coordinated with municipal authorities. D’Ambrosio LLP’s deep Massachusetts expertise and proactive guidance streamlined permitting and overcame logistical challenges, driving the project forward and highlighting the firm’s strength in complex commercial development matters.
• D’Ambrosio LLP serves as legal counsel to Helge Capital in a major residential development in Greater Boston, guiding the project from financing and site selection through construction and ultimate sale. The firm provided strategic advice in identifying and acquiring the site, negotiating purchase agreements, and conducting thorough due diligence to ensure compliance with state and local land-use regulations. D’Ambrosio LLP also led the permitting process, coordinated with state and municipal authorities to secure all necessary approvals, including environmental and infrastructure clearances.
• D’Ambrosio LLP serves as counsel to Constitution Capital Equity Partners, a full-service asset manager overseeing approximately $7 billion in assets, in a complex, multi-entity dispute. The matter involves numerous operating and investment agreements, more than a decade of prior actions, and sensitive issues related to confidentiality and choice of forum. The firm provides strategic guidance on all aspects of the dispute, including negotiation, risk management, and litigation strategy, leveraging its deep experience in complex partnership and investment matters to protect the client’s interests and navigate high-stakes financial and legal challenges.
• D’Ambrosio LLP, following a four-day trial in the Massachusetts Land Court, achieved a decisive victory in a high-stakes dispute over an alleged abandonment of a client’s access easement. After extensive witness testimony and the presentation of substantial documentary evidence, the Court ruled that the client had never abandoned the easement and issued a permanent injunction preventing the opposing party from interfering with the client’s lawful use of the property. This outcome represents a complete win for the client, safeguarding critical property rights and preserving long-term access essential to the property’s value and use.