Truth in Lending Act (TILA): Federal law requiring disclosure of credit terms in seller-financed transactions. Must be considered for installment payments structure and disclosure requirements.

Interstate Land Sales Full Disclosure Act: Federal law governing subdivided land sales, requiring specific registration and disclosure requirements for certain land transactions.

Real Estate Settlement Procedures Act (RESPA): Federal law governing real estate settlement processes and requiring specific disclosures in real estate transactions.

State Property Laws: State-specific laws governing property recording requirements, transfer regulations, and foreclosure procedures. Must be verified for the specific state where the property is located.

State Contract Laws: State-specific laws governing contract formation, enforcement requirements, statute of frauds, and real estate contract requirements.

State Consumer Protection Laws: State-specific laws providing consumer protections including disclosure requirements, cooling-off periods, and anti-fraud provisions.

Local Zoning Laws: Municipal and county regulations governing land use, development restrictions, and property classifications.

Property Tax Regulations: State and local laws governing property tax assessments, payments, and obligations during installment sale period.

Environmental Regulations: Federal and state environmental laws affecting property use, transfer, and disclosure requirements.

Title Insurance Requirements: State-specific requirements regarding title insurance and title search procedures for real estate transactions.

Homestead Rights: State-specific laws protecting property owners' rights and homestead exemptions that may affect the contract terms.

Recording Requirements: State and local requirements for recording land contracts and related documents with appropriate government offices.