Constructice notice

Constructive notice is a notice imputed by construction of law. The knowledge which the law implies a party to have had, whether he actually had it or not; thus the law implies that an under-lessee has knowledge of the contents of the head lease, whereas he very frequently has not. Whatever is sufficient to put any person of ordinary prudence on injury, is constructive notice of everything to which that inquiry might have led; thus if a man purchase land without any investigation of his landlord's title, he will be demand to have constructive notice of every encumbrance which a proper investigation would have disclosed.