Do searches and Form 1's expire? When? There is a common misconception that a Form 1 is valid for 3 months from preparation. However, this is far from the truth and agents could be at risk of serving defective Form 1's on purchasers and leaving their vendor vulnerable to contract failure. How long is a Form 1 actually valid for...? The Form 1 and searches are valid until there is a change in the information they contain. This might be 24 hours or 12 months. click "Learn more" to read the full post...