How do I execute (sign) a will?

A will must be signed in the presence of at least two witnesses and certain formalities must be followed or the will may be found to be invalid. A will that is formally executed in front of at least two witnesses with all signatures notarized is deemed to be “self-proving” and may be admitted to probate without the testimony of witnesses or other additional proof. Even if a will is held to be valid in spite of errors in execution, such a challenge can be costly and difficult, and it is best avoided in the first instance by proper execution. In Massachusetts, a will may refer to a memorandum that distributes certain items of tangible personal property, such a furniture, jewelry, and collectibles, that may be amended without the formalities of a will.