Wills, to be Valid, can only be made by persons at or above the age of twenty-one, and in a sound state of mind at the time of making the last will and testament; not attainted of treason; nor a felon; nor an outlaw. As regards the power of married women to make wills, a married woman may make a will, disposing, as she may think fit, of all property to which she is entitled for her separate use.
1588. Valid Wills (2)
No will is valid unless it is in writing, signed at the foot or end thereof by the testator, or by some other person in his presence and by his direction. And such signature must be made or acknowledged by the testator, in the presence of two or more witnesses, all of whom must be present at the same time, and such witnesses must attest and subscribe the will in the presence and with the knowledge of the testator.
1589. Irrevocable
A Will or Codicil once made cannot be altered or revoked, unless through a similar formal process to that under which it was made; or by some other writing declaring an intention to revoke the same, and executed in the manner in which an original will is required to be executed; or by the burning, tearing, or otherwise destroying the same by the testator, or by some person in his presence and by his direction with the intention of revoking the same.
1590. Loses Effect
No Will or Codicil, or any part of either, that has once been revoked by any or all of these acts, can be revived again, unless it be executed in the manner that a fresh will or codicil is required to be.