Almost all jurisdictions require that:

A) express trusts of real property be in writing.
B) trusts have at least four witnesses.
C) an inter vivos trust have at least two trustees.
D) a charitable trust have at least two trustees.

Express Trusts

Express Trusts are trusts created intentionally by the settlor, typically through a written document, specifying how assets placed into the trust should be managed and distributed.

Inter Vivos Trust

A trust created during the lifetime of the grantor, allowing the grantor to transfer assets before death for the benefit of future beneficiaries.