In order to guarantee that your property will truly be protected, there are specific terms you need to include in your trust agreement. For instance, any interests that you leave to your beneficiaries must either be dependent on a future occurrence or subject to the trustee’s sole discretion. An optional but very useful provision is known as a “spendthrift” provision. A spendthrift trust is created for the benefit of someone who is essentially unable to manage his or her finances or control his or her spending. Spendthrift provisions give an independent trustee full authority to make decisions as to how the trust funds may be spent for the benefit of the beneficiary.