Chaffetz Lindsey LLP

USA (New York)

Since 2009, Chaffetz Lindsey has delivered first-tier litigation and international arbitration service from a smaller, more client-friendly New York platform. They have helped US and international clients win or resolve a wide variety of disputes before US courts and arbitral tribunals around the world.

Chaffetz Lindsey’s Accolades – Chambers Global and Chambers USA




Peter has first-chaired more than 40 trials and arbitrations with amounts in dispute ranging to in excess of $2 billion. Peter’s trial/arbitration practice has ranged across the fields of commercial and financial litigation, including post-merger disputes, licensing, construction, commercial fraud, bankruptcy, energy and Ponzi schemes.  For many years he has also been recognized for his market leading reinsurance disputes practice. Prior to forming Chaffetz Lindsey, Peter served as Global Head of the 600-plus Litigation and Dispute Resolution team at one of the largest international law firms.  That experience gave him a perspective on cross-border litigation and international law that is rarely seen at smaller firms.

Peter’s Accolades

Erin Valentine is Counsel and Head of Client Development at Chaffetz Lindsey. In her 11 years at the firm, Erin has represented individual and corporate clients as well as foreign sovereigns in U.S. courts and before arbitral tribunals. Her cases have covered a wide-range of industries including construction, energy, entertainment, education, insurance, pharmaceuticals, and financial services. Since 2018, Erin has served as the firm’s Head of Client Development. In that role, she is responsible for developing and implementing the firm’s strategic plan and initiatives and managing client relationships and partnerships.

Andreas Frischknecht has been with the Chaffetz Lindsey since its founding in May 2009. Andy has more than 19 years of dispute resolution experience and has litigated a broad range of cases in the state and federal courts in New York and elsewhere, in trial courts and on appeal. He regularly represents corporate clients in transnational cases, including complex commercial contract and financial disputes, as well as sovereign clients in disputes arising under the Foreign Sovereign Immunities Act. Additionally, Andy has represented clients in international arbitrations under the ICC, SIAC and NAI Rules and in subsequent award enforcement proceedings. Before joining Chaffetz Lindsey, Andy was with Clifford Chance for over three years and, prior to that, with Hughes Hubbard & Reed LLP. He is a bilingual English and German speaker and a dual Swiss-American citizen and regularly represents German-speaking clients in U.S. proceedings