Answer:
A holograph is a document that is entirely handwritten. such as a will or a deed, and it may not have signatures of legal witnesses. For this reason, it may be difficult for a lawyer to establish a legal argument for the validity of a holograph.
Notes:
Not all states recognize the legal validity of holographs that do not have witnesses. This is one reason why a holograph is the "lawyer's eyesore".
Many countries accept certain types of holographs, such as a person's last will. Often, it is necessary to have a handwriting expert authenticate the person's writing with previously handwritten documents.