How is a revocation of deed of trust defective?

A revocation of a deed of trust may be considered defective if it lacks the required legal formalities, such as being improperly executed or not notarized. Additionally, if the revocation fails to provide proper notice to all relevant parties or if it is not recorded in the appropriate land records, it may be deemed invalid. Furthermore, if the revocation is made under duress or fraud, it can also be challenged as defective. Ultimately, a defective revocation may not effectively release the obligations secured by the deed of trust.