Complex commercial disputes can involve business records created in one country, witnesses working in another, and proceedings conducted under unfamiliar legal rules. The difficulty is not limited to language. Lawyers must establish what the evidence shows, explain its significance within the governing procedure, and test claims that may depend on highly technical transactions. Angus Ni of Morrow Ni LLP works at that intersection, combining Mandarin fluency with experience in complex U.S. litigation and international arbitration.
Based in New York, Angus Ni represents individuals and companies in complex disputes, including matters with international dimensions. His career illustrates why effective cross-border representation requires both direct communication with clients and the ability to examine an extensive record in court or arbitration.
The Evidence Problems Behind Cross-Border Litigation
An international commercial disagreement may begin with a straightforward question about an obligation, payment, or decision. Establishing the answer can be considerably harder when relevant records span corporate entities, jurisdictions, and languages. Communications may need to be understood alongside transaction histories, company procedures, and the rules of the forum hearing the dispute.
For clients doing business between China and English-speaking legal systems, the challenge includes communicating the commercial context accurately while meeting the formal demands of litigation. Fluency alone cannot resolve a dispute, but it can allow a lawyer to discuss the underlying events directly with Mandarin-speaking clients and then address the legal questions in English-language proceedings.
Angus Ni’s practice at Morrow Ni LLP, which operates under the Moni Law brand, focuses on complex commercial litigation for individuals and businesses facing these circumstances. The connection between client communication and evidentiary analysis is central: an account of what happened must ultimately stand up to documents, testimony, and procedural scrutiny.
Angus Ni’s Training Across Securities Cases and Arbitration
That combination of skills reflects experience in different litigation settings. At Bernstein Litowitz Berger & Grossman LLP, Angus Ni prosecuted securities class actions against publicly listed corporations on behalf of hedge funds and pension funds. Those cases involved multiple industries and jurisdictions, as well as discovery within and outside the United States.
Earlier, at Debevoise & Plimpton LLP, Angus Ni participated in complex arbitrations before International Chamber of Commerce tribunals and tribunals operating under the International Centre for Settlement of Investment Disputes. He also worked on large-scale corporate investigations involving multiple countries. These assignments placed commercial evidence within different procedural frameworks, from U.S. securities cases to international arbitration.
Angus Ni holds a J.D. with honors from the University of Chicago Law School and a B.A. with High Distinction from the University of Toronto. His institutional background helps explain the scope of Angus Ni’s cross-border litigation practice: disputes can demand familiarity with financial records, testimony, international discovery, and the distinct procedures of the forum in which a claim is heard.
What a FINRA Hearing Reveals About the Record
A recent arbitration involving J.P. Morgan Securities LLC shows how the details of a transaction can determine the scale of a claim. J.P. Morgan sought more than $6.4 million in fraud and breach-of-contract claims arising from a customer’s short sale of stock in a public company’s initial offering. The dispute involved Regulation SHO requirements and the timing of a short-position close-out.
Following a six-day evidentiary hearing, the FINRA panel denied the fraud claims in full and limited the customer’s exposure to $279,250, with each side responsible for its own fees. The panel attributed the amount above the close-out cost to J.P. Morgan’s decision to leave the position open before closing it during a sharp increase in the stock price.
The Morrow Ni trial team included Angus Ni, Serena Yang, and Jing He. Their examination of J.P. Morgan’s witnesses addressed what the firm knew about the close-out cost and when it made the relevant decisions. Rather than turning on a general characterization of the trade, the result depended on a detailed account of the sequence of events and the consequences assigned to each decision.
The FINRA arbitration involving J.P. Morgan Securities LLC offers a specific illustration of litigation built around a technical record. The result does not predict the outcome of other cases, but it shows the difference that careful examination of documents, trading mechanics, and witness testimony can make in a contested proceeding.
Trial Advocacy Beyond a Commercial Dispute
A separate federal criminal matter adds another dimension to the courtroom record. In the pro bono representation of Hailong Zhu, Angus Ni secured a judgment of acquittal after trial. The outcome arose in a different legal setting from the FINRA arbitration, with different questions and stakes, yet both matters required the presentation and testing of evidence in an adversarial proceeding.
The Zhu Hailong matter also demonstrates that his practice extends beyond paid commercial engagements. Pro bono trial representation is a distinct form of professional service, and an acquittal following trial is a concrete outcome rather than an assertion about general courtroom ability. Read alongside his securities and arbitration experience, it provides a fuller picture of work conducted under the scrutiny of formal proceedings.
A New York Practice With International Reach
New York is the base for Angus Ni’s work, including a practice connected to the city’s federal courts and cross-border commercial activity. His professional engagement also extends to the Chinese-American legal community. In September 2026, he participated in a legal careers panel at NYU School of Law co-hosted by the Asian American Bar Association of New York, the NYU China Law Students Association, and the Chinese American Lawyers Forum.
The connections among these activities are practical rather than merely geographic. Clients engaged in transnational disputes need counsel who can understand their business communications and also work within the procedures of the relevant legal system. Angus Ni’s background joins Mandarin-language access, institutional litigation training, and documented courtroom results in a New York-based practice serving that need.
About Angus Ni
Angus Ni, Esq., is a New York-based attorney and co-founder of Morrow Ni LLP, which operates as Moni Law. He handles complex commercial litigation, securities disputes, and transnational matters, and is fluent in Mandarin. His previous experience includes Bernstein Litowitz Berger & Grossman LLP and Debevoise & Plimpton LLP. He earned his J.D. with honors from the University of Chicago Law School and a B.A. with High Distinction from the University of Toronto. Learn more through Angus Ni’s professional profile at Moni Law.
