Yes, you are legally permitted to prepare your own Will. However, a Will, like all estate planning documents, must be drafted and executed in such a manner that it comports with Illinois law. Furthermore, depending on your situation, estate and gift tax consideration may render preparing just a Will inappropriate and inadvisable. A qualified attorney can evaluate your situation, discuss your goals with you and draft an estate plan that you can be sure complies with the law and achieves what you want. Furthermore, if you retain Hess Law Firm to prepare your estate plan, you will be kept up to date on changes in the law so that you can determine whether you need to update your estate plan.