Courts are generally reluctant to remove a trustee the settlor selected, so most states require a showing beyond simple disagreement between the trustee and beneficiaries — common grounds include a serious breach of trust, persistent failure to administer the trust properly, unfitness or incapacity, a conflict of interest that impairs the trustee's ability to act impartially, or hostility between the trustee and beneficiaries so severe it substantially impairs the trust's administration. Some trust documents also specify removal procedures the settlor built in, which can operate alongside or instead of the statutory standard.

Many states, following the Uniform Trust Code approach, also allow removal where a substantial change of circumstances makes removal in the best interests of the beneficiaries and is not inconsistent with a material purpose of the trust, or where all qualified beneficiaries request removal and the court finds it serves their best interests — a more flexible avenue than proving misconduct outright. The applicable standard, and how much weight beneficiary hostility alone carries, differs meaningfully by state.

Juricratic models the removal question as a dial distinct from any underlying breach of trust liability, since a trustee can be removed without a finding of financial liability, and a finding of breach does not automatically compel removal — the two are related but separately litigated questions.

Trust litigators seeking removal build a record showing the trustee's conduct or capacity actually impairs the trust's administration — not merely that beneficiaries are unhappy — while trustees defending against removal emphasize that disagreements over investment strategy or distribution decisions within their discretionary authority do not, by themselves, meet the removal standard.