Repairs, vendors, and receipts

Mold complaints are time-stamped lawsuits. The clock starts the minute the tenant notifies you, and the implied warranty of habitability runs in nearly every state. The defense isn't proving the mold wasn't yours — it's proving you responded immediately, hired qualified vendors, documented every step, and kept the tenant in the loop. Most landlord insurance policies exclude mold or cap it at $5,000–$10,000, so the financial exposure falls on the landlord. Acknowledge in writing within hours, inspect within 24, decide on a remediation path within 72, hire a hygienist separate from the remediator (single-vendor mold work is the conflict of interest insurers warn about), document moisture readings and photos at every stage, and close the response file with a clearance letter from an independent inspector. The response file is what wins these cases.