Housing: landlord and tenants; notification of defective conditions on premises and time limits for landlords to commence repairs; provide. Amends sec. 39 of 1846 RS 66 (MCL 554.139).

HB 4987 requires Michigan landlords to address tenant-reported repair issues within specific timeframes: 24 hours for urgent hazards like lack of heat, water, or bedbugs; 72 hours for appliance failures; and 10 days for other problems. Tenants must provide written notice via email, delivery, or approved electronic methods to trigger these deadlines. Landlords can extend timelines only if tenants interfere with repairs or unforeseen circumstances prevent timely action. This bill directly affects residential tenants and landlords in Michigan lease agreements, strengthening tenant rights to habitable housing under state law.