While there are laws in place across the country surrounding seller disclosures, the law is less clear on what specifically constitutes "as-is" condition. "As-is" is not, strictly speaking, a legal term — that is, it’s not defined in any legal code. Rather, it’s a contractual term, commonly used in formal transactional agreements between two parties. In real estate, it conveys that the seller makes no warranties, guarantees or representations about the property’s condition or the working order of its features; will do nothing to change that condition or features; and that the buyer accepts these terms in purchasing the property.
While not a law, "as-is" does carry some legal weight: It’s meant to relieve the seller from responsibility or liability for failing to disclose any problem with the property and to remove any legal recourse the buyer has if they do discover any defects, post-sale. But it only absolves sellers from unknown or hidden issues. "As-is" sellers still have to meet their state disclosure standards, and they can be held liable if they willfully misrepresent the  property’s condition or conceal evidence of problems.