Statute of Frauds: State-specific laws requiring suretyship agreements to be in writing, containing essential terms and signed by the surety. Falls under UCC ยง 1-206 and state-specific statutes.

Uniform Commercial Code (UCC): Key provisions under Article 3 (Negotiable Instruments) and Article 1 (General Provisions), particularly relevant for commercial suretyship arrangements.

State-Specific Suretyship Laws: Individual state legislation governing suretyship, including rights and obligations of sureties, notice requirements, and discharge provisions.

Fair Debt Collection Practices Act (FDCPA): Federal legislation governing debt collection practices, particularly relevant if the suretyship involves consumer debt.

Consumer Protection Laws: State and federal consumer protection statutes, especially relevant if the principal debtor is a consumer.

Contract Law Principles: Fundamental contract law including consideration requirements, capacity to contract, formation rules, and defenses to enforcement.

Bankruptcy Code: Federal bankruptcy laws affecting surety's obligations and rights in case of principal debtor's bankruptcy proceedings.

State Property Laws: Laws relating to security interests and real property regulations if real estate is involved in the suretyship agreement.

Equal Credit Opportunity Act (ECOA): Federal legislation governing credit transactions and non-discrimination requirements in suretyship arrangements related to credit.