The New York warranty of habitability makes every residential lease carry a non-waivable promise that the unit is fit to live in. This article explains what the warranty covers, what a landlord must repair, and the remedies a tenant can pursue, including rent abatement.
What the Illinois implied warranty of habitability covers, where it comes from (Jack Spring v. Little rather than a statute), how local ordinances add to it, and the remedies a tenant has when a rental is not habitable.
Texas has no broad common-law warranty of habitability. Instead, Property Code Chapter 92 gives tenants a statutory right to repair of conditions that materially affect health or safety, on specific notice terms.