State-Specific Landlord-Tenant Laws: Core state legislation governing notice periods, which vary by state. Some jurisdictions require longer notice periods (e.g., 60 days) and have specific requirements for delivery and service of notice.

Fair Housing Act: Federal legislation ensuring that non-renewal notices cannot be issued in a discriminatory manner based on protected classes and protects against retaliatory actions.

Local Rent Control Ordinances: Municipal or local regulations that may restrict non-renewal actions and might require 'just cause' for terminating tenancy.

Service Members Civil Relief Act: Federal law providing special protections for active military personnel that may affect the ability to non-renew leases in certain circumstances.

State Notice Requirements: Specific state regulations governing format requirements, mandatory content/language, and acceptable methods of notice delivery.

Contract Law: Fundamental legal principles governing the terms of the original lease agreement and any specific non-renewal provisions contained within.

Consumer Protection Laws: State-specific legislation protecting consumer rights, including any specific disclosure obligations related to non-renewal notices.