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Provided by Zachary Mazin
Zach tries complex civil cases arising out of business disputes, structured financial products, and governmental investigations. Currently, he represents trustees of residential mortgage-backed securitizations in actions seeking to recover billions of dollars from the investment banks who packaged and sold defective mortgage loans to unwitting investors. His RMBS work has earned him spots on Lawdragon’s “500 Leading Litigators in America” list (2022-2026), “500 Leading Plaintiff Financial Lawyers” list (2019-2023) and Benchmark Litigation’s “Under 40 Hot List” (2016-2019) and “Future Star” list (2018-2024).
Zach is also an advisor to clients working in the business of sports. He counsels and represents team executives, players, and football agents.
Zach began his career representing a major international bank in the Enron securities class action litigation. Zach and his team obtained a dismissal of the bank from the Enron investors’ lawsuit that wrongly sought to hold it liable for the losses caused by Enron’s fraudulent activity. He also represented the bank in a dispute over its obligation to pay on a $517 million Enron-related credit default swap.
Zach also handles disputes arising out of commercial contracts, business torts, and commercial leases.
- U.S. Bank and HSBC, each in their capacity as Trustee of certain RMBS trusts, in actions seeking to hold various Wall Steet Banks contractually accountable for their misrepresentations made in the course of packaging and selling tens of thousands of mortgage loans to unsuspecting investors.
- The Blockchain Recovery Investment Consortium, in its capacity as Complex Asset Recovery Manager and Litigation Administrator for the Celsius Network bankruptcy estate, in support of its efforts to pursue recoveries from malfeasant pre-petition professionals on behalf Celsius’s creditors.
- A significant private credit fund in a dispute with an administrative and collateral agent, pursuant to a $700,000,000 Credit Agreement, arising out of the improper disclosure of material non-public information to the lender.
- Two highly successful NFL agents in a dispute with their former employer. After assisting the agents in negotiating their departure, they now run their own agency where they represent All-Pro’s, Pro Bowlers, and Super Bowl champions.
New York City Elite: Commercial Disputes
Legal 500
2026
500 Leading Litigators in America
Lawdragon
2026
500 Leading Plaintiff Financial Lawyers
Lawdragon
2026
Future Star
Benchmark Litigation
2026
Under 40 Hot List
Benchmark Litigation
2019
Provided by Chambers
Zachary Mazin's practice is characterized by his adept handling of matters related to structured financial products and RMBS, among other issues.
Provided by Chambers
Zachary is the commercial litigation star of McKool Smith. He is a go-to trial lawyer who provides excellent advice and litigation skills.
Zachary has a lot of experience coming out of the credit crunch and has an active practice on financial products;. He is a go-to person in that sphere.
Zachary is very good at establishing relationships with adversaries and fostering an environment that helps lead to reasonable outcomes. He's great at managing teams and keeping the client involved.
Zachary is the commercial litigation star of McKool Smith. He is a go-to trial lawyer who provides excellent advice and litigation skills.
Zachary has a lot of experience coming out of the credit crunch and has an active practice on financial products;. He is a go-to person in that sphere.
Zachary is very good at establishing relationships with adversaries and fostering an environment that helps lead to reasonable outcomes. He's great at managing teams and keeping the client involved.