Service in actions affecting the title to land.
Section 401
SEC. 401. Service in actions affecting the title to land. — In an action affecting the title or the right of possession of real property, the plaintiff, at the time of filing the complaint, and the defendant, at the time of filing his answer, when affirmative relief is claimed in such answer, or at any time afterwards, may record in the office of the registrar of land titles of the province in which the property is situated a notice of the pendency of the action, containing the names of the parties and the object of the action or defense, and a description of the property in that province affected thereby. From the time only of filing such notice for record shall a purchaser, or incumbrancer of the property affected thereby, be deemed to have constructive notice of the pendency of the action, but only of its pendency against parties designated by their real names.