Gregg has a multifaceted tax law practice that encompasses advising companies and individuals on a wide range of tax issues related to private equity transactions, mergers and acquisitions, and renewable energy projects. He has significant experience with tax issues involving US and cross-border taxable and tax-free mergers and acquisitions, spin-offs, cross-border tax structuring, partnerships, and limited liability companies. He regularly represents US and international sponsors of, and investors in, private equity and other investment funds.

A principal area of Gregg’s practice focuses in the renewable energy sector, with an emphasis on renewable energy transactions and financings involving solar and wind projects. In particular, he focuses on representing tax equity investors, sponsors, and developers in the renewable energy space, and advises these clients on the tax aspects of their transaction structures, and the availability of federal income tax credits and other tax incentives.

In addition to his transactional work, Gregg counsels US and international high-net-worth individuals, family offices, and closely held businesses on a variety of US and cross-border income and estate tax planning issues.

Prior to joining Mintz, Gregg was a partner at a Canadian- and US-based law firm, where he advised clients on tax matters relating to transactions, estate tax planning, and renewable energy projects. He previously practiced at several international law firms, developing particular capabilities in negotiating and documenting tax provisions in complex corporate transactions. He has also worked at major accounting firms as a director and in a transaction advisory role.

Represented a Canadian pension investment management company in its acquisition of 49% of the Class B interests held by an affiliate of a US-based renewable energy company in a wind farm project in Texas.
Served as special Canadian and US securities law and tax counsel to a saving and investing app in its sale to a digital payments and financial technology company listed on the TSX and Nasdaq. The share-for-share transaction valued the company at approximately $50 million.
Advised a private equity firm focused on the metals and mining sector in its sale of a gold-mining site in Nevada to a gold production and exploration company for consideration valued at up to $85 million.
Represented an independent asset management company in the formation of a $1.2 billion fund focused on investments in North America, with limited partners from Canada, the United States, Europe, and Asia.
Advised an electric utility holding company in concurrent offerings of common shares yielding aggregate proceeds of approximately $1.2 billion. The offerings included a $690 million deal in Canada and the United States using the multijurisdictional disclosure system, including the exercise by the underwriters of their over-allotment option and a concurrent $500 million registered direct offering to an institutional investor.
Acted as Canadian and US counsel to an investment banking company in an at-the-market equity offering by a cannabis company in Canada and the United States under the multijurisdictional disclosure system.
Advised a Canadian multinational investment bank and a syndicate of lenders in the establishment of a $275 million revolving credit facility for a vitamin and natural health product manufacturer and its US subsidiary.
Represented a metals distribution company in its $160 million acquisition of a Texas-based supplier of pipe, valves, and fittings to oil and gas companies in the United States.
Advised a flexible packaging maker in the $215 million sale of its three health care manufacturing facilities to a globally integrated company that develops and manufactures products for a number of end markets, including medical, pharmaceutical, food, beverage, personal care, household, and industrial.
Counseled a Canadian chemical and manufacturing company on the formation of a new defense business. The company’s defense business and other operations in Québec merged with a privately owned, US-based manufacturer of defense products in a transaction valued at approximately US$132.7 million.
Represented a minority stockholder of a private company in a buyout of the majority stockholder of that company through a cross-border acquisition of all the company’s assets in a transaction that involved both equity and debt financing from a private equity firm and an institutional lender.
Advised a global developer and manufacturer of value-added consumable solutions for industrial and medical applications, including imaging and ink supplies, in its sale to an international private equity investment firm.
Represented a manufacturer of pressure-sensitive tapes in connection with its acquisition by a TSX-listed tape manufacturing company.

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The OBBBA: A Major Shift in Federal Clean Energy Tax Incentives

September 16, 2025 | Alert | By Gregg M. Benson, Helen Huang

This alert looks at how the One Big Beautiful Bill Act and President Trump’s Executive Order 14315 reshape clean energy incentives, and includes a list of action items for developers to do now.

July 10, 2025 | Alert | By Timothy J. Santoli, Liz Allison, Gregg M. Benson

The final One Big Beautiful Bill Act expanded the benefits of the Section 1202 “qualified small business stock” rules. This alert discusses these new benefits and their implications.

July 10, 2025 | Alert | By Gregg M. Benson, Helen Huang, Timothy J. Santoli, Liz Allison

A high-level summary of key tax provisions contained in the One Big Beautiful Bill Act that was signed into law by President Trump on July 4, 2025.

June 26, 2025 | Alert | By Gregg M. Benson, Helen Huang, Liz Allison, Timothy J. Santoli, Ari Feder

A high-level summary of key differences between the House and Senate versions of the One Big Beautiful Bill Act.

June 26, 2025 | Alert | By Timothy J. Santoli, Liz Allison, Gregg M. Benson

The Senate Finance Committee has released its own version of proposed legislation following the House’s passage of the One Big Beautiful Bill Act. In this alert we provide a summary of the proposed changes and their implications.

May 19, 2025 | Alert | By Ari Feder, Gregg M. Benson, Timothy J. Santoli, Helen Huang

Proposed Section 899 of the Internal Revenue Code, incorporated into “The One, Big, Beautiful Bill,” aims to impose retaliatory tax measures against certain “applicable persons” from “discriminatory foreign countries.”

May 15, 2025 | Alert | By Gregg M. Benson, Timothy J. Santoli, Ari Feder, Helen Huang

President Trump’s legislative priorities advance through Ways and Means, seeking to permanently extend numerous tax cuts and to roll back Biden-era energy tax credits. But looming disagreements among House and Senate Republicans suggest the negotiation process has just begun.

October 10, 2024 | Alert | By David Salamon, Zachary Liebnick, Gregg M. Benson, Joseph J. Ronca, Katya Daniel

Read about the steps to implement a pre-transaction reorganization under Section 368(a)(1)(F), known as an F reorganization, on a target that is treated as an S corporation for tax purposes, which can offer significant tax benefits to buyers and sellers.

May 23, 2024 | Alert | By David Salamon, Gregg M. Benson, Timothy J. Santoli, Helen Huang

Read about proposed Treasury regulations that provide guidance on the application of the stock buyback excise tax to redemptions and M&A transactions.

May 2, 2024 | Alert | By R. Neal Martin, Gregg M. Benson, John Lushetsky

The highly anticipated guidance for the second round of allocations (Round Two) under the US Treasury’s §48C Qualifying Advanced Energy Project Tax Credit program was released this week pursuant to IRS Notice 2024-36, with concept papers due potentially in the next 45 days.[1] That doesn’t provide applicants much time, but those with eligible projects should strongly consider submitting a concept paper. Submission of a concept paper is required to submit a full application, and receiving a letter of discouragement from the Department of Energy (DOE) on a concept paper does not preclude an applicant from submitting a full application. Moreover, an applicant that applied for but failed to receive an allocation in the first round is not precluded from applying for an allocation in Round Two.

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Mintz Advises Silversmith Capital Partners on Acquisition of Vantora

October 16, 2026|

Mintz Advises on Verastem Oncology’s $250 Million Underwritten Offering

October 15, 2026|

Mintz Advises Antora Energy on $550M Series C Financing to Meet Rising Energy Demand

September 3, 2026|

Mintz Advises Saltair in Sale of Majority Stake to TSG Consumer

August 13, 2026

Mintz advised Saltair, an award-winning body care brand founded by entrepreneur and model Iskra Lawrence, in its majority stake sale to TSG Consumer, a leading private equity firm focused on consumer brands.