Legal Question in Wills and Trusts in Florida

Revocable trusts, as their name implies, can be altered or completely revoked at any time by their grantor—the person who established them. Irrevocable trusts, however, cannot be modified, amended, or terminated without permission from the grantor's beneficiaries or by court order. The grantor transfers all ownership of assets into the trust and legally removes all of their ownership rights to the assets and the trust. You don't mention what type of trust he has. It sounds like a revocable or living trust if he is trying to change it.

If the donor is mentally competent, a revocable trust can be changed at any time prior to death.