Effective delivery on date when conditions specified for conveyance are satisfied (even if grantor or grantee dies before terms are satisfied).
Death escrows typically are held valid, effectively creating a remainder in the grantee, subject to a life estate in the grantor. Key issue in these cases is the grantor's intent. However, if the intent is to deliver to a grantee a deed absolute on its face, but accompanied by an oral condition that the deed will only take effect upon the occurrence of the grantor's death, most cases hold the deed void as an improper testamentary transfer (must be by will). If the contingency is not the grantor's death, some courts hold the deed valid and the condition void (statute of frauds, recording acts), while other courts hold the deed void, and others hold both the condition and the deed valid (but, protect 3rd parties).
Whenever a deed is delivered conditionally and not recorded, the grantor could subsequently transfer the property unconditionally to a bona fide purchaser, whose rights may be superior to those of the conditional grantee under the jurisdiction's recording acts.