Ivy T. Ngo

Ivy, an experienced class action attorney focusing on prosecuting securities fraud, is a creative and collaborative problem-solver with a proven track record of recovering hundreds of millions of dollars on behalf of clients. Most recently, along with SLF, she successfully obtained a $10.5M recovery in Lowry et al. v. RTI Surgical Holdings, Inc. et al., a case arising out of manipulative accounting practices. That recovery represents approximately 30% of plaintiffs’ estimated damages, which is over 3x the typical amount recovered in securities fraud class actions of that size.

Before joining SLF, Ivy successfully prosecuted numerous securities fraud class actions resulting in hundreds of millions of dollars in recoveries for injured investors at a national class action firm. Those cases include In re Cardinal Health, Inc. Sec. Litig. ($600M settlement); Jones v. Pfizer Inc. ($400M settlement); Fort Worth Employees’ Retirement Fund v. J.P. Morgan Chase & Co., et al. ($388M settlement); Silverman v. Motorola, Inc. ($200M settlement); In re HealthSouth Corp. Sec. Litig. ($109M auditor settlement); In re MGM Mirage Securities Litigation ($75M settlement); Massachusetts Bricklayers and Masons Trust Funds et al. v. Deutsche Alt-A Securities Inc et al. ($32.5M settlement); City of Ann Arbor Employees’ Retirement System et al. v. Citigroup Mortgage Loan Trust Inc. et al. ($25M settlement); In re Genworth Financial, Inc. Sec. Litig. ($20M settlement); and Shankar v. Imperva, Inc. ($19M settlement). She was a member of the team that certified classes in the cases against Motorola, Inc., Pfizer Inc., Genworth Financial, Inc., and J.P. Morgan Chase & Co.

Recognizing her work in securities fraud and class action litigation, Super Lawyers Magazine named Ivy a Rising Star for 2015-2018 and a Super Lawyer for 2019.


Eric Herzog

Eric Herzog is the Director of Client Data Analytics for the Schall Law Firm and possesses a wide range of analyst/accounting experience across diverse fields. Having worked in non-profit, technology, and film/television sectors, including work with Fortune 500 companies, he offers our clients a unique perspective and attention to detail. Eric holds a B.A. from the American School of Professional Psychology.


David Schwartz

David J. Schwartz is the Founding Partner of DJS Law Group, which focuses on event-driven and special situation litigation using legal strategies to enhance clients’ investment returns.

David has been named a “Future Star” by Benchmark Litigation and was also selected, three years in a row, to their “40 & Under Hot List,” which recognized him as one of the nation’s most accomplished attorneys. Lawdragon has recognized him as one of the country’s “500 Leading Plaintiff Financial Lawyers” and he has also been featured in Lawdragon’s Lawyer Limelight series.

Over the last several years, David has helped secure leadership roles on behalf of his clients in some of the largest securities and Delaware class actions, including cases against Lordstown, Nikola, Alta Mesa, Paypal, and others.

David’s extensive experience includes prosecuting, as well as defending against, securities and corporate governance actions for an array of domestic and international clients, including hedge funds, merger arbitrageurs, retail investors, pension funds, mutual funds, and asset management companies. He has played a pivotal role in some of the largest securities class action and corporate governance cases in recent years, achieving over $170 million in settlements in 2022 alone:

• In re CannTrust, Inc. Securities Litigation; CA$129.5 million settlement
• In re Resideo Securities Litigation (one of the three largest in the Eighth Circuit); $55.0 million settlement
• Makris, et al. v. Ionis Pharmaceuticals, Inc., et al., C.A. No. 2021-0681-LWW; $12.5 million settlement
• In re Mindbody, Inc. Securities Litigation; $9.75 million settlement

David has also done substantial work in mergers and acquisitions appraisal litigation and direct action/opt-out litigation, including over a dozen appraisals in domestic and foreign jurisdictions. Among other cases, David is currently prosecuting In re Lordstown Securities Litigation and several international appraisal actions.

David earned his Juris Doctor from Fordham University School of Law, where he served on the Urban Law Journal. He graduated cum laude from The University of Chicago majoring in Economics.


Rina Restaino

Rina started with SLF in 2019 and shares Brian’s vision of a client-centric approach. She is committed to understanding clients’ needs and providing them clear and fulsome counsel from the inception of a class action through final approval of any settlement.

On behalf of the Firm’s clients, Rina has participated in over 20 mediations, resulting in millions of dollars recovered for shareholders. She also has extensive experience in all phases of litigation, particularly in securities fraud and employment class actions involving over 1,000 plaintiffs. Her expertise arises from cases involving multifaceted data management and damage analysis.

Rina has made significant contributions to SLF, namely securing the client and ensuring an optimal recovery for the shareholders in the $90 million settlement in Klein, et al. v. Altria Group., et al.

In addition, Rina has worked for Fortune 500 companies in different legal and business capacities. She has handled single plaintiff and class action litigation for employees and employers, including cases alleging wrongful termination, discrimination, wage claims, and unfair labor practices.


Sherin Mahdavian

Sherin Mahdavian is a transactional and litigation attorney with experience in the fields of business and regulatory law.

In 2011, Sherin graduated a year early from UCLA with a bachelor’s degree in political science. She then continued straight into law school at the UCLA School of Law, graduating with a specialization in business law. Sherin went on to take the bar exam at 23 years old and immediately immersed herself in the legal profession.

While in law school, Sherin interned at Congressman Brad Sherman’s office as a federal agency liaison, and worked at one of the top lobbying firms in Los Angeles, Arnie Berghoff & Associates.

After graduating, she worked at Dongell Lawrence Finney LLP, a mid-sized law firm in Downtown LA, where she specialized in the areas of regulatory, business, and environmental law. While there, she focused her efforts on transactional work and client relations. She now works as an associate attorney at Schall Law, focusing her practice on client services and case development.


Brian Schall

Brian founded SLF with the vision of a client-centered approach to achieving the maximum recovery possible for all class members. To that end, SLF has helped recover nearly half a billion dollars for investors since 2017, including some of the largest recoveries of all time in securities fraud cases. Committed to his vision, Brian looks forward to continuing to empower investors to take a more active role in the litigation than they traditionally have, thereby shaping the securities class action sector to better represent the entire class.

Brian began his legal career working for the Honorable Patrick J. Walsh in federal court at the U.S. District Court for the Central District of California, and at American Funds – the world’s most powerful controlling shareholder at that time.

Brian went on to work for Beach Point Capital Management, a multi-billion-dollar fund manager where he focused on Dodd-Frank compliance, with a special emphasis on complex derivatives. He then worked at Glancy Prongay & Murray, one of the country’s top securities fraud class action firms, and subsequently co-founded Goldberg Law PC where he vigorously fought for shareholder rights in some of the largest class action cases in recent years.