A: The two main criteria are: 1) someone whom you trust, and 2) someone who is reasonably competent in financial matters. Trustees are obligated to put your interests before their own. Trustees can inadvertently breach this “fiduciary duty” if they act in a way that is careless, negligent, or could be construed as a conflict of interest. The most common trust breeches are: 1) The trustee co-mingles his or her personal finances with the finances of the estate, or 2) The trustee engages in a conflict of interest by borrowing from the trust, profiting from it, or doing something with the trust assets that benefit him or her personally. Read: Living Trusts: How To Choose A Trustee?