Lydecker | Diaz is a Full-Service AV-rated national law firm with offices throughout New York, New Jersey, Pennsylvania & Florida. We have built a distinguished history of skilled and effective legal service to our clients. We serve a broad variety of national, international, and local businesses, federal, state and local public entities. Financial Litigation. Our Firm has handled cases on behalf of foreign governments, royal families, banking clients, businesses, the U.S. Federal government, and the State of Florida in an effort to recover hundreds of millions of dollars of lost revenue, collect judgments, and pursue a variety of complex recovery avenues.