Photo of Michael Guggenheim

Michael Guggenheim is an associate in the Litigation Department and a member of the Securities Litigation and White Collar Defense & Investigation groups. He focuses on a wide range of business disputes and regulatory and investigative matters, including enforcement actions brought by the SEC and state attorneys general. In connection with the historic restructuring of Puerto Rico’s debts, Michael is a core part of the team that advises the Financial Oversight and Management Board for Puerto Rico on a variety of issues related to Puerto Rico Oversight, Management, and Economic Stability Act, including advising the Oversight Board on statutory and regulatory developments.

Michael has experience with every stage of litigation, including taking depositions, drafting dispositive and discovery motions, coordinating discovery, preparing witnesses for testimony, and drafting appellate briefs. He has represented clients in both state and federal courts, as well as in arbitrations and government investigations.

Michael maintains an active pro bono practice, which has included litigating against the State of New York to invalidate regulations that would circumvent statutorily mandated protections for children placed in foster care. In addition, he spent a five-month secondment at the New York City Law Department in the Administrative Law and Regulatory Litigation Division.

Michael earned his J.D. from Harvard Law School and his B.A., summa cum laude, from Rutgers University. While in law school, Michael worked for the Litigation Department of the San Francisco City Attorney, was a teaching assistant for the Harvard Law School Negotiation Workshop, and litigated election law cases with Common Cause. He also served as the Executive Managing Editor of the Harvard Law & Policy Review and coached the Boston College mock trial team. In his free time, Michael enjoys practicing yoga.

For decades, private fund strategies were the domain of institutional investors and the ultra-wealthy. That exclusivity is ending as private strategies migrate into retail vehicles designed to hold illiquid assets within a retail regulatory framework.

Many in the crypto space greeted the second Trump Administration with excitement. The first Trump Administration was crypto-friendly, but did not wholly overturn the existing securities framework for crypto assets. The Biden Administration was more skeptical of crypto, with then- Securities and Exchange Commission (SEC) Chair Gary Gensler embracing the Howey test for securities. Crypto supporters thought 2025 might bring about the industry’s holy grail: a crypto-friendly regulatory framework allowing for crypto trading and offerings without the risk of civil (or criminal) inquiries down the line so long as the framework was followed.

Markets have recently been experiencing heightened volatility and credit availability has tightened, which has placed valuation practices under unusual pressure from regulators and investors. The events of the past several years, including rising interest rates, geopolitical turmoil and the impacts of artificial intelligence tools, among other issues, have amplified the inherent challenges of valuing illiquid assets and sparked greater regulatory scrutiny. This is particularly true when marks affect fees paid by investors, or the prices at which they invest in or redeem from a fund.

GP-led secondary transactions continued to soar in popularity in 2025.  With mixed economic indicators potentially impeding other kinds of private equity exit events, the uptick in continuation funds shows no signs of slowing down in 2026.  Their popularity should come as no surprise—under the right conditions, a secondary transaction creates a win-win scenario for all stakeholders, providing legacy investors with near-term liquidity and an option to roll over their investments, new investors with an opportunity to invest in portfolio assets with a proven track record but greater room for growth, and fund advisers with an extended period to capture future upside as well as the potential for new capital to support portfolio assets. 

Choose your words carefully because careless words cost.

Never has this been more true than in disclosures about environmental, social and governance matters. As divergence between the US federal government and “red states” on the one hand, and the UK, EU, and certain US “blue states” on the other hand, solidifies, international asset managers and their underlying portfolio companies must navigate an increasingly narrow regulatory tightrope.

Use of technology referred to as “artificial intelligence” is fast finding its way into many aspects of commercial life. Registered investment advisers are no exception as AI tools are already being used for screening and research, portfolio construction, trading and drafting client communications. As advisers integrate these tools into their investment processes, they face a familiar set of questions under the federal securities laws.

As has been widely reported, digital infrastructure has become one of the fastest growing investment structures in recent years, most recently driven by the explosion in demand from firms in the artificial intelligence (AI) industry. This in turn has led to unprecedented needs for capex spending for the construction, expansion and upgrading of data centers, cell towers and networks, fiber optics and other data transmission facilities and power production and transmission. 

Private credit has spent a decade rising from niche alternative to central pillar in global finance. It has become a multi-trillion-dollar engine of corporate lending, infrastructure finance, asset-based credit, specialty finance, and opportunistic capital. While financial regulators have so far taken a relatively hands-off approach, elements of the market and the financial press have raised concerns about longer-term risks arising from the growth in private credit.

If we had to define the mood for 2026 in three words, we would choose alert, intentional and institutional. After several years of normalizing longer hold periods and navigating evolving regulatory frameworks, 2026 will see managers permanently vigilant – vigilant in pursuing value creation theses, identifying exit opportunities and embedding robust governance structures to mitigate litigation and regulatory risks.

On August 15, 2025, the Securities and Exchange Commission (“SEC”) issued an order settling proceedings against TZP Management Associates, LLC (“TZP”) for allegedly miscalculating management fee offsets between 2018 and 2023. The SEC’s action, based solely on a non-scienter claim, underscores the SEC’s ongoing focus on management fee calculation practices, despite talk of deregulation and a shift toward cases involving fraud and manipulation. Bread-and-butter issues such as fee miscalculations remain an enforcement priority.[1]