RentLateFee calculates legally compliant rent late fees. It applies each state’s maximum fee caps, grace period requirements and reasonableness standards across all 50 states and DC, and adds a GPT-backed Q&A assistant for rental law questions, automated lease review for compliance, prorated rent calculation, multi-property tracking and automated rent reminders. The calculator is free and unlimited; a professional PDF statement with legal citations is $5 one-time, and a $5 a month premium tier adds 100 AI requests, 50-plus state lease templates and document analysis. The company is LIFEMEDZ LLC.
The core calculator solves a real and narrow problem honestly. Late fee rules vary enormously by state – some cap the fee as a percentage, some require a grace period, some apply a bare reasonableness test – and a small landlord charging a figure they guessed at is exposed, while a tenant being charged one has no easy way to check. Encoding published statutory limits is exactly the kind of task software should do, and $5 pricing on the paid pieces is honest rather than extractive.
The legal layer needs treating carefully, and this is not a formality. A ‘court-ready’ PDF citing statute, an AI assistant answering landlord-tenant questions and automated lease compliance review together look a great deal like legal advice, and none of it is: no attorney-client relationship exists, landlord-tenant law changes at state and often municipal level, and a cap that was correct when the tool was built produces an unlawful charge after an amendment. Charging an illegal late fee is actionable and the liability is the landlord’s. Use it to get oriented and to check your own arithmetic; confirm anything you are going to rely on against the current statute or a lawyer.
