Securities Exchange Act 1934: Federal law governing securities trading and public company requirements. Critical if either company in the acquisition is publicly traded.

Hart-Scott-Rodino Antitrust Improvements Act: Federal antitrust legislation requiring companies to file pre-merger notifications for FTC review of potential anti-competitive impacts.

Securities Act 1933: Federal law regulating the offering of securities, relevant if stock is part of the acquisition transaction.

Foreign Investment and National Security Act: Federal law governing foreign investments in US companies, particularly regarding national security implications.

Federal Trade Commission Act: Primary federal law protecting consumers and preventing anti-competitive business practices.

State Corporation Laws: State-specific laws governing corporate operations and transactions (e.g., Delaware General Corporation Law).

Blue Sky Laws: State-level securities laws regulating the offering and sale of securities to protect investors from fraudulent activities.

Articles of Incorporation: Company's founding document specifying basic corporate governance rules and restrictions that may affect acquisition authority.

Corporate Bylaws: Internal rules governing company operations, including procedures for major corporate actions like acquisitions.

Stock Exchange Rules: Requirements set by stock exchanges for listed companies, including disclosure and shareholder approval requirements.

Sarbanes-Oxley Act: Federal law establishing enhanced corporate governance and financial disclosure requirements for public companies.

WARN Act: Federal law requiring advance notification of significant layoffs or plant closings that might result from acquisition.

Industry-Specific Regulations: Sector-specific rules and requirements (e.g., FCC for communications, FDA for pharmaceuticals) affecting acquisition approval.

Internal Revenue Code: Federal tax laws governing the tax implications and structure of corporate acquisitions.

State Tax Laws: State-specific tax regulations affecting corporate transactions and post-acquisition operations.