Cal. Probate Code § 16003 : California Probate Code — Trust Law — Duties Of Trustees — Trustee'S Duties In General — Duty to deal impartially with beneficiaries Date: 31 Aug 2016 TEXT PDF Current through the 2016 Legislative Session If a trust has two or more beneficiaries, the trustee has a duty to deal impartially with them and shall act impartially in investing and managing the trust property, taking into account any differing interests of the beneficiaries. Ca. Prob. Code § 16003