A personal property memorandum allows you to update your list of gifts any time you want. This is a separate document from your will that allows you to list out any tangible item and who you wish it to go to.After you create the list, sign it. A personal property memorandum is designed to cover who should receive items owned that don't have an official title record. A New York estate planning attorney explains why you should create an inventory of your property in your will and which factors to include on your list. It is very common to leave personal property in a will. However, it can cause problems during the probate process. A Will can have directions for how property should be divided and names an Executor to carry out those wishes. Here are some examples of things you must include on your list: Real estate (property). Write down your wishes.