About Grunfeld, Desiderio, Lebowitz, Silverman & Klestadt LLP
Grunfeld, Desiderio, Lebowitz, Silverman & Klestadt LLP (GDLSK) is a law firm whose work centers on customs and international trade law. Its attorneys handle matters before the federal agencies that administer and enforce trade rules, and the firm's website describes practice in customs valuation, classification, enforcement and audits, compliance management, and country-of-origin determinations. Its stated clients include domestic and foreign manufacturers, importers, exporters, trading companies, customs brokers, and trade associations, ranging from privately held businesses to some large corporations.
Third-party directories also list intellectual property, antitrust and competition, and tax among the firm's practice areas. The firm's New York presence is its headquarters at 599 Lexington Avenue in Manhattan, New York City. Its website also lists offices in Washington, D.C., Milwaukee, Los Angeles and Hong Kong, along with an affiliated office in China.
| Type | Law firm |
|---|---|
| New York offices | New York |
| Phone | 212.557.4000 |
| Website | gdlsk.com |
| Registered NY attorneys | 20 |
Practice areas
Areas of work that Grunfeld, Desiderio, Lebowitz, Silverman & Klestadt LLP describes on its own website. They describe the organization as a whole, not the practice of any individual attorney listed below.
Organization profile based on its official website and public sources (reviewed October 29, 2026). Attorney list from the New York State Unified Court System registration data. Not affiliated with Grunfeld, Desiderio, Lebowitz, Silverman & Klestadt LLP.
Registered attorneys
Max Schutzman Currently registered Alan Lebowitz Currently registered Ned Marshak Currently registered Bruce Mitchell Currently registered Harold Grunfeld Currently registered Robert Silverman Currently registered Alan Klestadt Currently registered Peter Klestadt Currently registered David Murphy Currently registered Harry Isacoff Currently registeredRegistration status can change at any time. Confirm any attorney's current status through the official New York Attorney Search.