Memorandum of caveat secures mandatory notice and obliges the caveator to accept service and appear in anticipated proceedings. A Memorandum of Caveat prescribes the required content to lodge a caveat: details of the order expected to be challenged with a copy, identification of expected appellants/petitioners/applicants, and addresses for service for the caveator and counsel. It contains a prayer that no orders be passed in the anticipated proceedings without service on the caveator, and an undertaking by the caveator to accept service and appear when the matter is moved, concluding with signatures and verification.