Your question lacks detail so the following is general information.
It depends on the document and where it needs to be legally binding. Faxed documents are becoming more and more common and if they need to be used in court a faxed signature may be vulnerable depending on the issues. An original signature is always preferable. Some land records offices will not accept a faxed document for recording unless it is an exhibit to an originally signed document.
Regarding legal documents in general there is no general rule. Good business dictates that if faxed documents are to be relied upon and the intent is for parties to be bound by those documents a separate statement to that effect should be made part of the package and clearly expresses in the documents.
A document is legally binding if it has been notarized by a licensed notary. It is also legally binding if it has been filed in court.
A legally binding document is one whose terms can be enforced by a court of law. An example is a marriage certificate and a contract.
A notarized document is not necessarily a legally binding document. A properly written and properly signed and propely notarized document may help you in court, but the only thing a notarized document proves is that the people who signed the document were who they said they were.
An unsigned document is not legally binding.
A contract is a legally binding document. If it was signed, it is serious.
A signed IOU can be legally binding. It can be enforced by the estate if needed.
A legally binding document is one whose terms can be enforced by a court of law. An example is a marriage certificate and a contract.
The franchise agreement is the cornerstone document of the franchisee--franchiser relationship. It is this document that is legally binding on both parties, laying out the rights and obligations of each.
A written statement of employment is a legally binding document which puts the main terms of employment in a document and which an employer is required to give to an employee.
The franchise agreement is the cornerstone document of the franchisee--franchiser relationship. It is this document that is legally binding on both parties, laying out the rights and obligations of each.
It's short for "facsimile", because the machine creates a facsimile of the original document.
If the spouse signs on the dotted line without reading the entire document it is still a binding contract. The lawyer in question, for the spouse will probably advise the spouse not to sign unless the entire document is viewed by them first, but if they sign it is legally binding.