A will is a document written for the purpose of ensuring the distribution of assets like real estate, inventory, capital, or other items to specified persons. While the law does not require everyone over 18 years of age to have a will, it would be extremely wise to do so.
Although a will never expires, it is good practice to review it with your attorney periodically to keep it up to date with changes in your life, family.
Never write on your original will. If you need to make changes, you should see your attorney to write a new will or a codicil.