Requiring certain disclosures to be made to prospective tenants and providing restrictions on fees for the late payment of rent under the residential landlord and tenant act.

HB 2666 modifies Kansas' residential landlord-tenant law by limiting late rent fees and requiring upfront disclosures to prospective tenants. Landlords may charge no more than 5% of rent as a late fee (with no compounding fees) and must provide tenants a 5-day grace period before charging. It also mandates landlords to disclose in writing key details to applicants, including estimated rent, fee types, availability dates, and eligibility criteria (like credit or criminal history). Violations release tenants from agreements without penalty and require landlords to refund all payments plus an equal penalty amount. This directly affects Kansas landlords and renters in rental housing transactions.