Uniform Commercial Code (UCC): Primary federal law governing commercial transactions, especially Article 2 which deals with the sale of goods. Essential for business agreements involving product sales.

Federal Contract Law: Fundamental principles governing contract formation, execution, and enforcement at the federal level.

Antitrust Laws: Sherman Antitrust Act and Clayton Act which regulate competition and prevent monopolistic practices in business agreements.

Federal Trade Commission Act: Regulates unfair or deceptive business practices and provides consumer protection guidelines that must be considered in business agreements.

ESIGN Act: Electronic Signatures in Global and National Commerce Act - governs the legal validity of electronic signatures and records in business transactions.

State Contract Laws: Specific contract laws that vary by state and may affect the formation, interpretation, and enforcement of the business agreement.

State UCC Modifications: State-specific adoptions and modifications to the Uniform Commercial Code that may affect business transactions in that jurisdiction.

State Business Codes: State-specific business and commerce codes that regulate business operations and transactions within the state.

Consumer Protection Laws: State-specific laws designed to protect consumer interests in business transactions and agreements.

Industry Regulations: Both federal and state-specific regulations that govern particular industries and must be complied with in business agreements.

Common Law Principles: Established legal principles from court decisions regarding contract formation, including offer, acceptance, consideration, and mutual intent.

Statute of Frauds: Legal requirement that certain contracts must be in writing and signed to be enforceable.

Data Privacy Laws: Federal and state laws governing the collection, storage, and use of personal and business data in commercial relationships.

Employment Laws: Federal and state employment regulations that must be considered if the business agreement involves labor or employment matters.

Intellectual Property Laws: Laws protecting patents, trademarks, copyrights, and trade secrets that may be relevant to business agreements.

Tax Laws: Federal and state tax regulations that may affect the structure and terms of business agreements.