Hyung Choi uses statutes such as the Consumer Fraud Act, Fair Credit Reporting Act, Truth in Lending Act, Fair Debt Collection Practices Act, and the Uniform Commercial Code to challenge unfair business practices. Hyung Choi has handled hundreds of successful consumer protection cases including class action lawsuits against car dealers and finance companies. Hyung Choi took four cases against car dealerships to the jury and obtained punitive damages in each of the four cases. Hyung Choi also enjoys challenging credit reporting agencies and furnishers for inaccurate reporting. As a former engineer for General Motors, Hyung Choi is knowledgeable about automobiles which helps in lemon law and warranty cases.