Chaffetz Lindsey LLP > New York, United States > Firm Profile

Chaffetz Lindsey LLP
1700 Broadway, 33rd Floor
New York, NY USA 10019
United States

Dispute resolution > International arbitration Tier 2

According to sources, Chaffetz Lindsey LLP stands among the ‘premier boutique construction and investment arbitration law firms‘. From its New York base, the practice is busy across the globe, acting on arbitrations in 20 jurisdictions over the past year alone. The group’s Latin America credentials are a big draw for clients, with Aníbal Sabater in particular singled out for his ‘wealth of experience in the Latin American market‘; he paired up with Caline Mouawad (‘very intelligent and nimble‘) to represent Canada’s Stoneway Capital and its Argentine subsidiary, SPI Energy, in an ICC arbitration in New York against Siemens. Group leader James Hoskingkeeps a cool head in complex situations‘ and routinely handles commercial and investment treaty arbitrations. Yasmine Lahlou continues to raise her profile in the market; she acted alongside Sabater to represent Tonopah Solar Energy, an entity controlled by the US Department of Energy, in an ICC arbitration against Spanish-owned Cobra Thermosolar Plants. Other recommended names include founding partner David Lindsey, dual New York- and Swiss-qualified Andreas Frischknecht and Gretta Walters, who brings a ‘fantastic point of view to each case‘.

Practice head(s):


‘Chaffetz Lindsey is one of the premier boutique construction and investment arbitration law firms that I have had the pleasure of working with. Lawyers are consummate professionals and have always stood out to me as one of the most prepared legal teams that I get to work with.’

‘Chaffetz Lindsey is an international arbitration boutique, capable of fully conducting complex cases in several languages, which is a highly appreciated asset in the LatAm market. Partners are 24/7 available to clients. They work seamlessly with local counsel.’

‘Chaffetz Lindsey’s arbitration team provides high-level services, with sophistication and dedication to the client. My personal experience as second chair in an arbitral case has been greatly enriched by the professionalism and organization of the partners and associates.’

Strong focused professionals with great skills and abilities for international arbitration practice.

‘James Hosking is quite a strategist. Talent and hard-work all in one. He keeps a cool head in complex situations to come up with appropriate solutions.’

‘Aníbal Sabater is a great strategist and legal professional with a wealth of experience in the Latin American market. James Hosking stands out as a diligent and skilled cross-examiner with an incredible work ethic and attention to detail.’

‘Caline Mouawad and her team are very intelligent and nimble. They are collaborators, willing to listen to suggestions and not afraid to better their practice by learning as they go along in a matter. Their written advocacy is exceptional and they are able to back that up with excellent oral advocacy skills as well.’

Gretta Walters is one of the most promising young professionals that I have worked with at the firm and brings a fantastic point of view to each case.’

Key clients

The AES Corporation

APM Terminals Callao S.A

Clorox Spain S.L.

Czech Republic

Enel S.p.A

Eskenazi family

Grañá y Montero

The Government of the Cook Islands

IESA Oleo & Gas, S.A


Reti Televisive Italiane

SPI Energy

Stoneway Capital

Sustainable Bio Solutions Aabenraa K/S

Synohydro Costa Rica, Omega Construcciones, Desarrollos y Construcciones Urbanas and CAABSA Infraestructura

Tonopah Solar Energy, LLC

Work highlights

  • Successfully represented Brazil-based IESA Oil & Gas in an ICC arbitration seated in New York, in a dispute arising out of the owner’s wrongful termination of an EPC Contract.  
  • Successfully represented Nigerian National Petroleum Company in US federal court in New York, in opposing enforcement of a $2.8bn arbitration award.
  • Represented the Czech Republic in a PCA-administered UNCITRAL arbitration seated in The Hague arising out of the Republic’s alleged breach of the Czech Republic-UAE BIT.

Industry focus > Insurance: advice to insurers Tier 2

New York-based disputes boutique Chaffetz Lindsey LLP regularly puts its international expertise and network to use in matters that take place in Switzerland, the United Kingdom and elsewhere. The insurance practice comprises a wide array of coverage disputes and benefits from the firm‘s expertise in national and international arbitration. The team‘s activities representing clients in reinsurance disputes are also of note. At the head of the practice are four experienced lawyers: Peter Chaffetz, involved in many of the most complex insurance matters; Cecilia Moss  whose expertise includes disputes over arbitrability and enforcement of arbitral awards; Steven Schwartz and Charles Scibetta , who are both described as ‘very experienced reinsurance lawyers who give sound legal and practical advice‘.

Other key lawyers:


‘I have worked with Steve Schwartz and Charles Scibetta. They are both very experienced reinsurance lawyers who give sound legal and practical advice. I have not had better experience elsewhere.’

‘Steve and Charlie are strategic thinkers. They provide clear, no nonsense advice in timely fashion.’

‘Peter Chaffetz and Andrew Poplinger are very “hands-on” and very accessible throughout our engagement. They worked quickly and efficiently to enable us to meet tight deadlines. They quickly grasped our business priorities and devised a strategy to achieve those goals. Both Peter and Andrew showed an excellent grasp of the industry and they were very well versed in the applications we were making, showing helpful insights which influenced our strategy which delivered an great outcome.’

Key clients


Allianz/Fireman’s Fund



Ergo Versicherungs AG


Sun Life Financial

Trisura International Insurance (formerly Imagine International Insurance)

Zurich Insurance Company North America

Work highlights

  • Representing AIG in a number of its large, complex insurance and reinsurance coverage disputes.
  • Representing Chubb in three separate coverage litigation disputes.
  • Representing an insurer in two separate European seated arbitrations arising out of US class action settlements.

Latin America: International firms > International arbitration Tier 3

New York-based international disputes boutique Chaffetz Lindsey LLP advises on complex international arbitrations globally and has grown its Latin America client base and team in recent years. The firm has secured notable victories for clients in the construction, manufacturing and renewable energy sectors and secured new instructions involving clients and projects across multiple Latin American countries. Founding partner James Hosking leads the team and is active on the firm’s largest Latin America cases, as well as sitting as arbitrator on a number of Latin America matters. The highly regarded Aníbal Sabater maintains a sizeable Latin America client base and has built up extensive arbitral experience, especially in energy, construction and financial services disputes. Caline Mouawad is another key name and has 20 years' experience handling both commercial and investor-state disputes, while Yasmine Lahlou is best known for her work in Brazil and is active in the energy, pharmaceuticals and telecoms industries. The practice has strengthened its senior ranks with the promotion of Gretta Walters to the partnership in recognition of her contribution to complex matters in Guatemala, Brazil, Costa Rica and Mexico. Former rising star Rainbow Willard left the firm to take up a position at the US Department of Justice in 2021.

Practice head(s):

James Hosking

Key clients

AES Corporation

APM Terminals Callao

Clorox Spain

Eletrobras CGT Eletrosul


Eskenazi family

Grañá y Montero

Hydria Participações e Investimentos

IESA Oleo & Gas

QGI Oil & Gas

SPI Energy

Stoneway Capital

Work highlights

  • Successfully represented Brazilian construction company IESA Oil & Gas in ICC arbitration seated in New York concerning a dispute arising out of the owner TUPI’s wrongful termination of an EPC Contract to build modules to for six different floating, production, storage and offloading vessels
  • Represent Clorox Spain in ongoing UNCITRAL arbitration against Venezuela under the Spain-Venezuela bilateral investment treat
  • Represented AES Corporation in ICSID arbitration against Argentina seeking damages for breaches of the US-Argentina bilateral investment treaty, arising from Argentina’s modification of its electricity tariffs in the context of the 2001 Argentine financial crisis.

The firm: Chaffetz Lindsey is a premier litigation and international arbitration boutique. For over ten years, it has helped clients find business-minded solutions where possible or win in arbitration and court if necessary. It provides the service, expertise and international experience clients expect from the largest firms, but from a smaller, client-friendly, New York City platform. Chaffetz Lindsey’s international reach is unique for its size and single-office location. In addition, the firm is distinguished by its flexibility on fees and lack of conflicts. Chaffetz Lindsey can and does act against major businesses that many large firms will not oppose.

Main areas of practice
Commercial litigation: Chaffetz Lindsey has an active commercial litigation practice with significant trial and appellate experience in federal and state courts. The team represents companies in disputes involving complex commercial contracts, sales/licensing and distribution agreements, construction projects, and disputes arising from domestic and international crises (including COVID-19). The firm excels in cross-border litigation, including cases involving sovereigns, international discovery, enforcement of judgments/arbitration awards, and parallel proceedings.

International arbitration: Chaffetz Lindsey is an international arbitration powerhouse. It represents clients in arbitrations administered by all of the major institutions and under all of the major arbitral rules, including HKIAC, ICC, ICDR, ICSID, LCIA, SCC, SIAC, and UNCITRAL Rules. The team handles disputes in a variety of industries, with a particular expertise in energy, engineering and nbsp; and construction, financial services, insurance, infrastructure, manufacturing, mining, oil and nbsp;and gas, and pharmaceuticals. In addition to its broad commercial arbitration practice, Chaffetz Lindsey has expertise in public international law and currently represents investors and sovereigns in multiple treaty disputes. The firm’s current caseload includes arbitrations involving more than 20 jurisdictions covering Asia, Continental Europe, Latin America, North America, and the Middle East. In addition to being US-qualified, the team includes lawyers trained in both civil and common law systems who have practiced in Europe, Latin America, or Asia-Pacific and are fluent in several languages, including Spanish, Portuguese, French, Italian, and German. The firm’s lawyers are recognized thought leaders who regularly speak, teach, and publish on cutting-edge international arbitration issues.

Insurance/reinsurance: Chaffetz Lindsey has one of the deepest insurance/reinsurance practices in the market. The firm has delivered successful results to clients facing exposures ranging into the billions of dollars in every major industry issue of the past three decades. These issues include asbestos, environmental, 9/11, finite risk, financial guarantee, commutations, late notice, workers’ compensation, managing general agencies and pools, insurance wrapped residential mortgage backed securities, disputes over arbitrability, COVID-19, and insolvency matters, including cases against liquidators and cut-through endorsement claims by policyholders. In addition, we have extensive experience in disputes arising out of mergers and acquisitions of insurance and reinsurance companies. Chaffetz Lindsey’s team members are recognized leaders in the industry and are active members in a variety of industry forums, including ARIAS and the International Bar Association’s Insurance Committee. Peer firms frequently call on Chaffetz Lindsey to submit amicus curiae briefs on major industry issues.

Bankruptcy: Chaffetz Lindsey recently expanded its team to bring on a leading bankruptcy specialist, Alan Lipkin. Chaffetz Lindsey advises major creditors, shareholders, creditors and ad hoc committees, and other key parties in chapter 11 and debtors’ chapter 7 cases and out-of-court workouts. The firm also has substantial experience in insurance and bank insolvency matters and in addressing potential insolvency issues in structured finance and other complex transactions. Consistent with the team’s deep international network and experience, many of firm’s insolvency-related matters involve cross-border components and ancillary proceedings under chapter 15 of the bankruptcy code.

Partners: Peter Chaffetz, Andreas Frischknecht, James Hosking, Yasmine Lahlou, David Lindsey, Alan Lipkin, Sandy Litvack, Cecilia Moss, Caline Mouawad, Andrew Poplinger, Aníbal Sabater, Steven Schwartz, Charles Scibetta, Gretta Walters

Number of partners: 14
Number of other lawyers: 13

Founding Partner Peter Chaffetzpeter.chaffetz@chaffetzlindsey.com212 257 6961
Founding Partner James Hoskingjames.hosking@chaffetzlindsey.com212 257 6963
Founding Partner Cecilia Mosscia.moss@chaffetzlindsey.com212 257 6964
Founding Partner Charles Scibettacharles.scibetta@chaffetzlindsey.com212 257 6962
Partner Aníbal Sabateranibal.sabater@chaffetzlindsey.com212 257 6945
Chinese (Mandarin)