Cal. Civ. Code § 2927 : CALIFORNIA CIVIL CODE — OBLIGATIONS — OBLIGATIONS ARISING FROM PARTICULAR TRANSACTIONS — LIEN — MORTGAGE — MORTGAGES IN GENERAL — Possession of property by mortgagee

A mortgage does not entitle the mortgagee to the possession of the property, unless authorized by the express terms of the mortgage; but after the execution of the mortgage the mortgagor may agree to such change of possession without a new consideration.